Our experienced team of testers has tried and evaluated over 140 different supplements. To select the best testosterone boosters of 2026, we worked with a registered dietitian, who reviews our content for efficacy, accuracy, and safety. 

Read on for our top picks so you can decide what’s best for your needs. 

Why Trust Fortune

Our team of expert testers has tried hundreds of the most popular supplements on the market today, using our comprehensive supplement testing methodology to find the best products for all folks.

Medical Disclaimer: This article is not intended to replace the advice of a healthcare or medical professional. For health concerns or medical guidance, contact your healthcare provider.

Best Testosterone Booster of 2026

• Best Testosterone Booster Overall: 1st Phorm Primal T & Night-T Stack
• Best Testosterone Booster Formula: Testosil 
• Best Over the Counter Testosterone Booster: Juvenon Alpha Gold Male
• Best Testosterone Booster for Males Over 40: Innerbody Labs Testosterone Support
• Best Testosterone Booster for Recovery: Swolverine ZMT
• Best Natural Testosterone Booster: Transparent Labs Vitality
• Best Testosterone Booster with Zinc: Testoprime
• Best Testosterone Booster for Muscle Gain: Testofuel

Best Testosterone Boosters Comparison Table

Testosterone booster	Key Ingredients	Serving Size	Third-Party Tested
1st Phorm Primal T & Night-T Stack	KSM-66® Ashwagandha, LJ100®, Tongkat Ali (Eurycoma longifolia), DIM (diindolylmethane), GABA, and more	3 capsules of each	Yes
Testosil	KSM-66® Ashwagandha, Fenugreek Extract, D-Aspartic Acid, Tribulus Terrestris, Zinc, Magnesium, AstraGin, and more	4 capsules	Yes
Juvenon Alpha Gold Male	KSM-66, Saw Palmetto Fruit Extract, Boron Citrate, Fenugreek Seed Extract	2 capsules	Yes
Innerbody Labs Testosterone Support	Ashwagandha (KSM-66®), Fenugreek extract, Tongkat Ali (Eurycoma longifolia), Maca root, Zinc, Vitamin D (cholecalciferol), Copper	4 capsules	Yes
Swolverine ZMT	L-taurine, L-Theanine, L-Tryptophan, KSM-66, Valerian Root, GABA, Tongkat Ali Root, Melatonin	6 capsules	Yes
Transparent Labs Vitality	KSM-66® ashwagandha, PrimaVie® shilajit, LJ100® Tongkat Ali (Eurycoma longifolia), L-OptiZinc®, DIM (diindolylmethane)	2 capsules	Yes
Testoprime	D-Aspartic Acid, KSM-66 Ashwagandha, Fenugreek, Panax Ginseng, Green Tea Extract, and more	4 capsules	Yes
Testofuel	D-Aspartic Acid, Vitamin D3, Oyster Extract, Zinc, Magnesium, Vitamin K2, Vitamin B6, and more	4 capsules	Yes

1st Phorm Primal T & Night-T Stack
Key Ingredients	KSM-66® Ashwagandha, LJ100®, Tongkat Ali (Eurycoma longifolia), DIM (diindolylmethane), GABA, and more
Serving Size	3 capsules of each
Third-Party Tested	Yes
Testosil
Key Ingredients	KSM-66® Ashwagandha, Fenugreek Extract, D-Aspartic Acid, Tribulus Terrestris, Zinc, Magnesium, AstraGin, and more
Serving Size	4 capsules
Third-Party Tested	Yes
Juvenon Alpha Gold Male
Key Ingredients	KSM-66, Saw Palmetto Fruit Extract, Boron Citrate, Fenugreek Seed Extract
Serving Size	2 capsules
Third-Party Tested	Yes
Innerbody Labs Testosterone Support
Key Ingredients	Ashwagandha (KSM-66®), Fenugreek extract, Tongkat Ali (Eurycoma longifolia), Maca root, Zinc, Vitamin D (cholecalciferol), Copper
Serving Size	4 capsules
Third-Party Tested	Yes
Swolverine ZMT
Key Ingredients	L-taurine, L-Theanine, L-Tryptophan, KSM-66, Valerian Root, GABA, Tongkat Ali Root, Melatonin
Serving Size	6 capsules
Third-Party Tested	Yes
Transparent Labs Vitality
Key Ingredients	KSM-66® ashwagandha, PrimaVie® shilajit, LJ100® Tongkat Ali (Eurycoma longifolia), L-OptiZinc®, DIM (diindolylmethane)
Serving Size	2 capsules
Third-Party Tested	Yes
Testoprime
Key Ingredients	D-Aspartic Acid, KSM-66 Ashwagandha, Fenugreek, Panax Ginseng, Green Tea Extract, and more
Serving Size	4 capsules
Third-Party Tested	Yes
Testofuel
Key Ingredients	D-Aspartic Acid, Vitamin D3, Oyster Extract, Zinc, Magnesium, Vitamin K2, Vitamin B6, and more
Serving Size	4 capsules
Third-Party Tested	Yes

Best Testosterone Booster Overall: 1st Phorm Primal T & Night-T Stack

1st Phorm leaves no stone unturned with their dynamic stack of Primal-T and Night-T, two testosterone-boosting supplements aimed to improve training performance, support healthy energy levels, and promote relaxation when it’s time to wind down. Men looking for a little extra oomph from their testosterone booster will find a lot of value with this comprehensive stack. 

Our Tester’s Thoughts on 1st Phorm Primal T & Night-T Stack

Pete, a nutrition coach and registered dietician, tested this stack and was immediately drawn to 1st Phorm’s packaging. “These supplements come in white plastic containers with child-proof locking lids, the type where you need to push down and twist it to open,” he said. “The label is well-designed, but the text on the back of the label is pretty small and can be kind of difficult to read.” Regardless, he awarded 1st Phorm a perfect 5-star rating for first impression.

Pete noted that the capsules were standard in size. However, Primal-T and Night-T both feature a three-capsule serving size, meaning you’ll be swallowing six capsules each day to reap the full benefits of the stack.

“I didn’t notice any clear benefits from using Primal-T. To know if any testosterone booster supplement is working, you’d have to get before and after bloodwork done,” Pete said. “Night-T, on the other hand, featured active ingredients like Valerian Root Powder and Melatonin. I definitely felt the melatonin kicking in within about 30 minutes after taking the supplement, and I felt like I had a restful night’s sleep.”

What Testers Think Could Be Improved 

Taking a daily testosterone booster stack may be one of the most effective ways of getting results, but it can get expensive quick. Buying Primal-T and Night-T together costs $89.99, which makes your daily out-of-pocket $4.50 if you’re taking three capsules of each supplement every day.

That said, Pete was impressed with the ingredients and felt that the experience was a positive one. “Primal-T is a well-formulated product because it includes ingredients that have legitimate clinical research behind them, like Ashwagandha, Tongkat Ali, and DIM (Diindolylmethane),” he said. “I especially like Night-T because it focuses on improving sleep and recovery, which absolutely can support healthy testosterone levels.”

Specs

• Key Ingredients: KSM-66® Ashwagandha, LJ100®, Tongkat Ali (Eurycoma longifolia), DIM (diindolylmethane), GABA, and more
• Form: Capsule
• Third-Party Testing: Yes
• Cost per Serving: $2.25
• Serving Size: 3 capsules of each

Best Testosterone Booster Formula: Testosil

We chose Testosil as our best testosterone booster formula because it includes more than 10 natural ingredients shown to support testosterone production. For instance, zinc, a key ingredient, plays a big role in not just testosterone production but also immune function, cognitive function, and prostate health.  

Our Tester’s Thoughts on Testosil 

Pete, our team’s certified nutrition coach, tested this testosterone booster. He rated it a 5 out of 5 for first impressions. “The label is matte black and easy to read, and the container opens and closes easily,” he said. 

Our tester rated the side effects a 5 out of 5, noting that he didn’t experience any negative side effects after taking the serving size of four pills. That said, some of the ingredients in this product may cause stomach upset. If you have any pre-existing conditions or are prone to negative reactions with supplements, we recommend consulting a doctor before trying Testosil. 

What Testers Think Could Be Improved 

Pete rated the ease of reading and following the instructions as a 3 out of 5. He noted that the instructions say, “Take one to two servings daily (four to eight capsules). Do not exceed eight capsules in a 24-hour period. Best taken with meals.”  

Specs

• Key Ingredients: KSM-66® Ashwagandha, Fenugreek Extract, D-Aspartic Acid, Tribulus Terrestris, Zinc, Magnesium, AstraGin, and more
• Form: Capsule
• Third-Party Testing: Yes
• Cost per Serving: Starting at $2.30
• Serving Size: 4 capsules

Best Over the Counter Testosterone Booster: Juvenon Alpha Gold Male

Juvenon Alpha Gold Male is our pick for the best OTC testosterone booster. This product contains KSM-66 (an ashwagandha supplement), fenugreek seed extract, and boron citrate, all of which may help boost testosterone levels, though more research is needed to confirm this. 

Our Tester’s Thoughts on Juvenon Alpha Gold Male 

After taking a look at the package, our tester Pete gave this product a 5 out of 5 for his first impression. The supplement comes in a small, white plastic container with a screw-top lid that’s easy to open and close. Pete said that the “the label is a bit on the cheesy side,” as it features a shirtless man.  

After trying a serving, Pete gave the side effects a 5 out of 5, as he didn’t notice any digestive unrest or unwanted symptoms. “The ashwagandha, which is included at a solid dose (675 milligrams) and boron are the standouts here, with evidence supporting stress reduction and potential improvements in free testosterone,” Pete added. “The saw palmetto is more for prostate support and doesn’t have a strong impact on testosterone levels.” 

What Testers Think Could Be Improved 

Pete was a fan of the smaller serving size, which is only two capsules per serving in the morning. However, he did notice a bit of an unpleasant taste. “The capsules don’t taste great, with a very earthy, mushroom-like flavor,” he said, giving the taste a 2 out of 5. “Since they’re capsules, you can swallow them quickly and move on, but this is definitely not something you’d want lingering in your mouth any longer than necessary.” 

Specs

• Key Ingredients: KSM-66. saw palmetto fruit extract, fenugreek seed extract, boron citrate
• Form: Capsule
• Third-Party Testing: N/A
• Cost per Serving: $1.12
• Serving Size: 2 capsules

Best Testosterone Booster for Males Over 40: Innerbody Labs Testosterone Support

We chose Innerbody Labs Testosterone Support as our pick for the best testosterone booster for men over 40 based on its formulation, which includes multiple ingredients that may help support healthy aging. Innerbody Labs’ blend includes tongkat ali, which may reduce fatigue, though human studies are needed to support this. The product also includes ingredients such as ashwagandha and fenugreek. 

Our Tester’s Thoughts on Innerbody Labs Testosterone Support 

Our tester Pete liked that the supplement comes in a small, plastic bottle that’s compact enough for travel and translucent, so you can see how much product is remaining. He gave both first impressions and ease of instructions a 5 out of 5 score, and further went on to note the serving size and pill size were both fairly typical. “It’s a clear capsule with a beige-colored powder inside,” he said. “The capsule size is standard, about 1 inch in length and about 1 cm in diameter. The serving size is four capsules per day.”  

Pete didn’t experience any unwanted outcomes after taking Innerbody Labs Testosterone Support. He reported no digestive issues or negative side effects and gave the supplement a 5 out of 5 for side effects. 

What Testers Think Could Be Improved 

When Pete swallowed this supplement, he noted that it tasted like gelatin. He rated both taste and swallowability at a 3. “It would require bloodwork to determine whether or not this product actually increases testosterone levels in the body,” says Pete. 

Pete gave the supplement its lowest score of a 1 in the price category, since each serving is more than $2. However, he did note its higher-than-average dosage of clinically backed ingredients, which likely explains the higher price. “Overall, if someone already has normal testosterone levels and focuses on nutrition and high-quality sleep, then this supplement will likely have a minimal effect if any,” Pete said. “That said, this supplement does have a more credible formulation than many other testosterone boosters on the market.” 

Specs

• Key Ingredients: Ashwagandha (KSM-66®), Fenugreek extract, Tongkat Ali (Eurycoma longifolia), Maca root, Zinc, Vitamin D (cholecalciferol), Copper
• Form: Capsule
• Third-Party Testing: Yes
• Cost per Serving: Starting at $2.60
• Serving Size: 4 capsules

Best Testosterone Booster for Recovery: Swolverine ZMT 

Research has even shown that fragmented sleep may be associated with lower testosterone levels. Luckily, Swolverine ZMT has plenty of recovery components, including 500 milligrams of L-theanine and 3 milligrams of melatonin, mixed with ingredients aimed at supporting testosterone levels, like 50 milligrams of tongkat ali root. While more research is needed to create a firm connection between tongkat ali and increased testosterone production, it may be a helpful tool.  

Our Tester’s Thoughts on Swolverine ZMT 

Our tester Pete liked Swolverine’s clean, light blue label, giving this product a 5 out of 5 for first impression. He especially liked that the text was easy to read, though he did think that the container is too large to be travel-friendly.  

Pete was happy with the results after taking this testosterone , rating the side effects a 5 out of 5. “I took Swolverine’s ZMT supplement about 30 minutes before bed,” he said. “There are a few ingredients in the supplement that can help set your body up for sleep, including valerian root extract and melatonin. I did feel sleepy before bed and fell asleep easily.” 

All in all, Pete liked this formula, praising the ingredients and versatility of the product. “Swolverine’s ZMT is a combination testosterone booster and nighttime sleep aid. This could work well as a recovery supplement for athletes, since it can help reduce stress, improve sleep, and may provide some basic hormonal support.”    

What Testers Think Could Be Improved 

Pete rated the swallowability a 1 out of 5, as this product requires more capsules than your average testosterone booster. This product involves taking six vegetarian capsules per serving. 

Specs

• Key Ingredients: L-taurine, L-Theanine, L-Tryptophan, KSM-66, Valerian Root, GABA, Tongkat Ali Root, Melatonin
• Form: Capsule
• Third-Party Testing: Yes
• Cost per Serving: Starting at $2.29
• Serving Size: 6 capsules

Best Natural Testosterone Booster: Transparent Labs Vitality

Transparent Labs Vitality is our pick for the best natural testosterone booster. It combines ingredients such as KSM-66® ashwagandha, PrimaVie® shilajit, and Tongkat Ali, all of which may help support hormone health. Additionally, we chose this testosterone booster because Transparent Labs stands out for its clear labeling, third-party testing, and transparency, ensuring safety and efficacy of the ingredients. That said, this product isn’t ideal for everyone, so always consult your healthcare professional before trying a new supplement. 

Our Tester’s Thoughts on Transparent Labs Vitality 

Pete tested Transparent Labs Vitality, rating it a 5 out of 5 for his first impression. The capsules come in a small, white plastic container. “The off-white label has a matte finish that looks great and is easy to read,” Pete said. “The container opens and closes easily.” Transparent Labs is also incredibly clear with their ingredient lists and third-party testing, which our team loves. 

He also rated the instructions and ease of reading them as a 5 out of 5 in this category, saying, “It directs you to take two capsules (one serving) one to two times daily, with food.” The directions are straightforward and helpful, and it’s nice that the serving size is two capsules. Other testosterone boosters tend to involve multiple servings, so Transparent Labs definitely wins for convenience here. 

Pete found the capsules easy to swallow. “The capsules are clear and contain a yellow powder. They’re the standard size, about one inch and length and one centimeter wide,” he said. There was no taste to the capsules, and Pete didn’t experience any side effects when trying out this testosterone booster. 

What Testers Think Could Be Improved 

Pete rated the price a 1 out of 5. While it’s not the most expensive testosterone booster we’ve tried (over $2 a serving), this product costs $1.83 per serving, which is on the higher end. 

Specs

• Key Ingredients: KSM-66® ashwagandha, PrimaVie® shilajit, LJ100® Tongkat Ali (Eurycoma longifolia), L-OptiZinc®, DIM (diindolylmethane)
• Form: Capsule
• Third-Party Testing: Yes
• Cost per Serving: Starting at $1.83
• Serving Size: 2 capsules

Best Testosterone Booster with Zinc: Testoprime

TestoPrime is our pick for the best testosterone booster with zinc, which may help slow down the conversion of testosterone into estradiol (the predominant form of estrogen), according to the brand. Alongside zinc, the product contains 12 natural ingredients that have been studied for their relationship to testosterone. 

• KSM-66 Ashwagandha may raise testosterone levels by reducing stress and improving hormonal balance. 
• Fenugreek Extract may increase both total and free testosterone in men, while potentially boosting energy, strength, and sexual health.
• D-Aspartic Acid potentially helps increase the body’s own testosterone production, which may be especially useful for those experiencing lower levels.

Our Tester’s Thoughts on TestoPrime 

Pete’s experience trying TestoPrime started with packaging and first impressions: “The capsules come in a medium-sized, black plastic container with a metallic silver label. The label is easy to read and the container opens and closes easily. This would be travel-friendly,” he said, rating TestoPrime a 5 out of 5 in this category. 

He found the formula simple to use and appreciated its clear dosing instructions, rating them a 5 out of 5 for ease of reading and understanding. “The directions say for adults to take four capsules approximately 20 minutes before your breakfast,” Pete wrote. We think taking the entire day’s dose at the first meal of the day helps to keep things simple. 

What Testers Think Could Be Improved 

The pills are clear white capsules with white powder inside. The capsule is normal size, about one inch in length and one centimeter wide, per Pete. He rated the swallowability of the capsules a 3 out of 5, since the serving size is four capsules. 

Pete rated the price a 1 out of 5. This product costs $2.16 per serving, which we think is pricey. 

Specs

• Key Ingredients: D-Aspartic Acid, KSM-66 Ashwagandha, Fenugreek, Panax ginseng, green tea extract, and more
• Form: Capsule
• Third-Party Testing: N/A
• Cost per Serving: Starting at $1.84
• Serving Size: 4 capsules

Best Testosterone Booster for Muscle Gain: Testofuel

Testofuel is our pick for the best testosterone booster for muscle gain because it contains a high dose of D-Aspartic Acid, which may help support both testosterone and muscle growth, especially when combined with resistance training. However, more clinical trials are needed to create a direct correlation. It’s important to remember that supplementation alone won’t build muscle—consistent strength training with progressive overload and a balanced diet are both vital to maximizing your gains.  

Our Tester’s Thoughts on Testofuel 

Pete tested Testofuel, rating it a 5 out of 5 for his first impression. “Testofuel comes in a medium-sized, white plastic container with a blue label. It’s travel-friendly, plus it opens and closes easily,” he said.  

What Testers Think Could Be Improved 

He rated the ease of following instructions as a 3 out of 5. “It says to take one capsule four times per day with a meal or snack. For optimum results, it says to take daily and consistently,” Pete says. Taking a pill four separate times throughout the day isn’t exactly convenient for most folks. If you want a single-serving option, we recommend Transparent Labs Vitality. 

Pete rated the swallowability of Testofuel as a 3 out of 5. He didn’t notice any taste or side effects after taking this supplement. “The recommended serving size is four capsules per day,” he said. “And the pills are clear white capsules with an off-white powder inside.” 

Specs

• Key Ingredients: D-Aspartic Acid, vitamin D3, oyster extract, zinc, magnesium, vitamin K2, vitamin B6, and more
• Form: Capsule
• Third-Party Testing: N/A
• Cost per Serving: Starting at $1.99
• Serving Size: 4 capsules

What Are Testosterone Boosters?

Testosterone boosters are dietary supplements sold to help raise the body’s natural testosterone levels, often with claims that they support muscle growth, increase libido, boost energy, and improve mood. They usually contain a mix of vitamins and minerals, as well as other compounds like zinc, magnesium, D-aspartic acid, and ashwagandha. These products focus on men who are experiencing symptoms of low testosterone, as natural testosterone levels tend to decline with age. 

“It is important to understand that these supplements are not equivalent to testosterone replacement therapy, and people should not expect drug-like changes from them,” says Johannah Katz RD, dietitian from Consumer Health Digest. 

“Low energy, low libido, poor recovery, and changes in body composition (all issues that individuals may seek a testosterone boosting supplement for) can stem from many things besides low testosterone, including poor sleep quality, stress, under-eating (or over-eating pro-inflammatory/ultra-processed foods), alcohol intake, various medications, thyroid issues, depression, etc.,” Katz said. 

Testosterone boosters are not essential for anyone’s health and are rarely necessary; there is limited scientific evidence showing that these supplements reliably work to significantly raise testosterone. Most reputable sources and experts do not recommend use of these products, especially because OTC testosterone boosters are not regulated for safety or effectiveness by the FDA. For those who still wish to explore these options, it’s best to look for products with well-known ingredients and to prioritize safety by talking with your doctor or other healthcare professional before starting any supplement regimen. 

Testosterone Booster Ingredients

Ingredient	Purpose in a Testosterone Booster
Zinc	May support normal testosterone levels
D-Aspartic acid	May stimulate hormones that increase testosterone
Vitamin D	May help raise testosterone levels
Fenugreek	May help raise testosterone levels
Ashwagandha	May reduce stress
Magnesium	May help raise testosterone levels
Maca root	May boost energy and libido

Zinc
Purpose in a Testosterone Booster	May support normal testosterone levels
D-Aspartic acid
Purpose in a Testosterone Booster	May stimulate hormones that increase testosterone
Vitamin D
Purpose in a Testosterone Booster	May help raise testosterone levels
Fenugreek
Purpose in a Testosterone Booster	May help raise testosterone levels
Ashwagandha
Purpose in a Testosterone Booster	May reduce stress
Magnesium
Purpose in a Testosterone Booster	May help raise testosterone levels
Maca root
Purpose in a Testosterone Booster	May boost energy and libido

How We Tested and Selected the Best Testosterone Boosters

We tested and evaluated testosterone boosters by scoring them on a scale of 1-5 for factors such as first impressions, swallowability, formula, third-party testing, and price per serving. Our testers evaluate the products based on their own individual experiences and preferences. We then review their testing feedback and data to share our findings and recommendations with you.

Formula

Whether you’re buying a men’s multivitamin or testosterone booster, formulation matters. We work with a certified nutrition coach during testing to find the most effective and safely formulated testosterone boosting supplements. We avoid testosterone boosters with fillers, and other synthetics. We also did our best to select testosterone booster supplements that have been third-party tested. 

“Ashwagandha, frequently included in testosterone booster supplements, does have human research behind it,” says Katz. “It is one of the most well-studied adaptogens. One proposed mechanism is stress modulation. A randomized, double-blind, placebo-controlled trial from 2019 found that ashwagandha reduced perceived stress and morning cortisol, suggesting effects through the hypothalamic-pituitary-adrenal axis. This is the proposed mechanism that can indirectly support hormone balance because chronic stress and poor sleep can work against an optimal hormone balance.” 

“There is also some testosterone-specific research, but I would not call it dramatic in results,” says Katz. “In a randomized, double-blind, placebo-controlled crossover 2019 study of overweight men ages 40–70, ashwagandha was associated with greater increases in testosterone and DHEA-S compared with placebo, but symptom improvements in fatigue, sexual well-being, and psychological well-being were not significantly different than placebo.” 

Third-Party Testing

Independent lab testing provides objective confirmation of a supplement’s safety, purity, and accurate labeling, helping to lower the chances of hidden contaminants or inaccurate dosages. This process checks for hazards like pesticides and heavy metals, ensuring the product is free of harmful substances.

Because the FDA does not rigorously regulate supplements before they reach store shelves, third-party tests are essential for verifying the safety, quality, and contents of these products.

Value

When considering value, we place a premium on brands that source their ingredients in America and have certifications, such as Informed Choice.

Testosterone booster	Key ingredients	Price per serving
1st Phorm Primal T & Night-T Stack	KSM-66® Ashwagandha, LJ100®, Tongkat Ali (Eurycoma longifolia), DIM (diindolylmethane), GABA, and more	$2.25
Testosil	KSM-66® Ashwagandha, Fenugreek Extract, D-Aspartic Acid, Tribulus Terrestris, Zinc, Magnesium, AstraGin, and more	$2.30
Juvenon Alpha Gold Male	KSM-66, Saw Palmetto Fruit Extract, Fenugreek Seed Extract, Boron Citrate	$1.12
Innerbody Labs Testosterone Support	Ashwagandha (KSM-66®), Fenugreek extract, Tongkat Ali (Eurycoma longifolia), Maca root, Zinc, Vitamin D (cholecalciferol)	$2.23
Swolverine ZMT	L-taurine, L-Theanine, L-Tryptophan, KSM-66, Valerian Root, GABA, Tongkat Ali Root, Melatonin	$2.29
Transparent Labs Vitality	KSM-66® ashwagandha, PrimaVie® shilajit, LJ100® Tongkat Ali (Eurycoma longifolia), L-OptiZinc®, DIM (diindolylmethane)	$1.83
Testoprime	D-Aspartic Acid, KSM-66® Ashwagandha, Fenugreek, Panax ginseng, green tea extract, and more	$2.16
Testofuel	D-Aspartic Acid, vitamin D3, oyster extract, zinc, magnesium, vitamin K2, vitamin B6, and more	$2.00

1st Phorm Primal T & Night-T Stack
Key ingredients	KSM-66® Ashwagandha, LJ100®, Tongkat Ali (Eurycoma longifolia), DIM (diindolylmethane), GABA, and more
Price per serving	$2.25
Testosil
Key ingredients	KSM-66® Ashwagandha, Fenugreek Extract, D-Aspartic Acid, Tribulus Terrestris, Zinc, Magnesium, AstraGin, and more
Price per serving	$2.30
Juvenon Alpha Gold Male
Key ingredients	KSM-66, Saw Palmetto Fruit Extract, Fenugreek Seed Extract, Boron Citrate
Price per serving	$1.12
Innerbody Labs Testosterone Support
Key ingredients	Ashwagandha (KSM-66®), Fenugreek extract, Tongkat Ali (Eurycoma longifolia), Maca root, Zinc, Vitamin D (cholecalciferol)
Price per serving	$2.23
Swolverine ZMT
Key ingredients	L-taurine, L-Theanine, L-Tryptophan, KSM-66, Valerian Root, GABA, Tongkat Ali Root, Melatonin
Price per serving	$2.29
Transparent Labs Vitality
Key ingredients	KSM-66® ashwagandha, PrimaVie® shilajit, LJ100® Tongkat Ali (Eurycoma longifolia), L-OptiZinc®, DIM (diindolylmethane)
Price per serving	$1.83
Testoprime
Key ingredients	D-Aspartic Acid, KSM-66® Ashwagandha, Fenugreek, Panax ginseng, green tea extract, and more
Price per serving	$2.16
Testofuel
Key ingredients	D-Aspartic Acid, vitamin D3, oyster extract, zinc, magnesium, vitamin K2, vitamin B6, and more
Price per serving	$2.00

Potential Benefits of Testosterone Boosters 

Testosterone boosters are advertised as helping to enhance muscle mass, increase energy, improve libido, boost athletic performance, and reverse symptoms associated with low testosterone. These claims are largely based on the idea that raising testosterone levels will increase stereotypically masculine traits, improve physical health, and support overall well-being. 

Scientific reviews show that the evidence for most testosterone boosters is weak and inconsistent. Clinical trials of common ingredients typically find inconclusive results or only small effects on testosterone in healthy men. A 2019 study found some supplements contained excessive levels of vitamins and minerals, and about 10% included ingredients that could actually lower testosterone. 

“A testosterone boosting supplement may have a small role for some people, but it should be chosen carefully and thoughtfully,” says Katz. “It is important to focus on the foundations first (sleep, resistance training/aerobic exercise, proper nutrition and protein intake, stress management, hydration, etc.).” 

How to Take Testosterone Boosters 

When it comes to taking testosterone boosters, it’s essential to read the directions on the label of the product as instructions may vary. The manufacturer’s directions will include how many capsules to take per day, if they should be taken along with food, and timing recommendations such as morning or nighttime doses. 

Even though testosterone boosters are available over the counter, it’s important to talk with your doctor before starting to take a testosterone boosting supplement. This way, you’ll be aware of the risks, benefits, and any side effects to look out for. 

How to Find the Best Testosterone Booster for You

Everyone has different reasons for taking a supplement, depending on your goals, dietary needs, allergies, and any health conditions you manage. We recommend talking with your doctor before starting any new supplement regimen to make sure you understand any possible risks and benefits.

Here’s what to consider when selecting the best testosterone booster for you.

Your Fitness Goals

You may want to consider your age, fitness level, and goals when selecting the best testosterone booster for you. For example, a booster with ingredients to support men over 40 may suit you best if you fall into that age category. If you’d like to boost your testosterone while also gaining muscle, check our list for formulations that may match up with your fitness goals. 

We recommend that you manage your expectations as best as possible if you decide to take a testosterone booster. These supplements aren’t magic and won’t provide the results you may see with physician-recommended treatments, like testosterone replacement therapy. 

Formula

We recommend talking with your doctor about the best testosterone booster for you. Since ingredients can vary in these types of supplements, your doctor can help with suggestions on the most optimal product. We recommend that you prioritize a testosterone booster with well-researched ingredients, rather than selecting based on what an influencer may be promoting.

Also, different folks have different hormonal needs. Your doctor may also want to run a hormone panel to see what’s most advantageous for your body.

When reviewing formulas, we recommend that you avoid products with undisclosed or excessive ingredients. Many supplements include proprietary blends or high doses of vitamins or minerals that could interact with your medications. If you have a history of prostate conditions, heart disease, or liver problems, you may want to avoid this type of supplement, as ingredients in testosterone boosters could cause adverse effects. 

We recommend only purchasing testosterone boosters that have been third-party tested for safety, purity, and accurate labeling. Lower quality supplements could contain harmful ingredients or even banned substances. 

Other Testosterone Boosting Supplements

If you’re not quite ready to take a full-on testosterone booster, there are other supplements that might assist in testosterone production. A few of the most popular are listed below. Note that some of the testosterone boosters in this article already contain some of these nutrients and vitamins (like vitamin D and zinc, for example), but you can also get them as their own supplements.

Vitamin D

Sunlight can help your body naturally produce vitamin D, which some studies have shown to be a testosterone booster. For instance, in one yearlong study, 65 men who took a daily vitamin D dosage of 3,300 IU saw their testosterone levels increase by 20 percent. That said, other studies have been inconclusive. You can find some of our favorite products in our list of the best vitamin D supplements.

Zinc

Zinc is an essential nutrient in your body, and some studies have shown that it may help modulate testosterone levels in men. You can increase your intake with a zinc supplement, or even by taking multivitamins—some of which include zinc. See our list of the best multivitamins for some options.

Iron

Iron and testosterone have an interesting relationship. While iron can sometimes decrease testosterone levels, testosterone can actually regulate iron levels, creating what one study calls a “yin-yang relationship.” At the end of the day, optimizing your iron levels might have a positive effect on your testosterone (and vice versa), but you should consult your doctor before taking additional iron supplements, as the ideal iron level can vary from person to person. Learn more in our list of the best iron supplements.

NMN

NMN stands for “nicotinamide mononucleotide,” and in short, it’s a form of vitamin B3 that can promote mental clarity, physical endurance, and healthy aging. Another potential benefit of NMN is that it may increase serum testosterone levels, especially in cases of testicular injury. Read more about it on our page of the best NMN supplements.

Frequently asked questions

Do testosterone boosters really work?

Most testosterone boosters are not backed by reliable scientific evidence and typically do not produce significant increases in testosterone levels. Some ingredients, such as fenugreek seed extract and ashwagandha extract have shown some potential in limited studies, but overall results are inconsistent and not proven.

How can I increase my testosterone fast?

There’s no way to quickly raise your testosterone naturally, though there are ways to modify your lifestyle to support healthy testosterone levels over time. Eating healthy, whole foods, as well as exercising, will help. Try to lower stress when possible, as well, as lower cortisol levels can negatively impact testosterone levels. Some initial studies have found that Vitamin D may help raise your testosterone levels, but more research is needed.

What is the best testosterone booster that really works?

Testosil is our top-rated testosterone booster because it combines clinically studied ingredients like Ashwagandha, Fenugreek, and D-Aspartic Acid, which may support natural testosterone production, reduce stress, and improve energy, strength, and overall male health.

Do testosterone boosters have hormones in them?

None of the products on this list contain hormones. Testosterone booster supplements typically don’t contain testosterone, which you might find in a testosterone pill. That said, the FDA doesn’t regulate these supplements closely, so we recommend prioritizing third-party tested testosterone boosters to help guarantee label and ingredient accuracy.

What are the testosterone booster side effects?

There are a few common unwanted side effects you may experience with testosterone boosters. These may include increased acne, headache, upset stomach, anxiety, increased heart rate, among others. If you experience any unwanted side effects, stop taking this supplement immediately and consult a healthcare professional.