Optimizing your hormone health isn’t vanity. It can actually give you a competitive advantage over your peers. How? Research from Harvard suggests that declining testosterone levels may cause brain fog and reduced mental stamina, so it may be a good idea to add a testosterone supplement to your performance stack.
While testosterone boosting supplements should not be a replacement for physician-directed use of testosterone replacement therapy (TRT), they can be helpful. Pete, our team’s certified nutrition coach, tested Testosil, a 100% natural testosterone booster. Read on for our full review of the formulation, effectiveness, value, and more.
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Testosil
Serving size
Key ingredients
Form
Our thoughts: We love the vitamins and minerals in this supplement, and our tester didn’t have any negative side effects after taking it
Who it's for: Busy male professionals looking to boost testosterone levels for energy and longevity
What makes it different: Includes ashwagandha, which may help raise testosterone levels by lowering cortisol
- Money-back guarantee
- Free shipping in the continental USA
- Includes several vitamins and minerals
- The most recent COA (lab testing analysis) available on Testosil’s website is from 2024
- Not available in stores; only online
- Pricey, though you can buy multiple bottles at a discount
Testosil Specs
Our Experience with Testosil
Testostil is a testosterone boosting supplement that is third-party tested and made in a cGMP certified manufacturing facility, which is also FDA-registered and inspected. It contains 100% natural ingredients and no proprietary blends, so you know exactly what the ingredients are and how much of them you’re taking. Testosil’s key ingredients that may help increase testosterone levels include KSM-66 (ashwagandha), Fenugreek seed extract, zinc, and more.
Our certified nutrition coach Pete tried out Testosil himself. Here’s what he liked and what he suggests could be improved about the product.
What We Liked
Here’s what our tester rated highly after trying Testosil.
- First impressions (5 out of 5): “Testosil comes in a medium-size, black plastic container,” said Pete. “The label is matte black and easy to read, and the container opens and closes easily.”
- Side effects (5 out of 5): Pete didn’t experience any side effects after trying Testosil. “Keep in mind that you would need to do bloodwork to assess whether there was any increase in testosterone after using this product,” said Pete.
What We Would Change
Here’s what Pete would improve about Testosil.
- Instructions and ease of use (3 out of 5): The directions say to take one to two servings daily, which is four to eight capsules. Pete rated this category lower because of the high pill dosage, which could be a detractor for anyone who has a hard time swallowing capsules. The directions also state not to exceed eight capsules in a 24-hour period, and that the pills are best taken with meals.
- Value (1 out of 5): A one month’s supply of Testosil costs $79, and each serving comes out to $2.63. This is on the higher end compared to other testosterone boosters that our team tested, which cost around $2.00 per serving.
Who It’s For & Who It’s Not For
Testosil may work well for some and not for others. Here’s a breakdown of when we think it will work well and when we think you might want to shop around more.
If Testosil ends up being the right fit for you, you can take it in conjunction with other products geared toward men’s health and wellness, such as the best multivitamins for men and the best hair loss treatments for men.
Comparing Testosil to Other Products
Below, compare the similarities and differences between Testosil and some of the other best testosterone boosters.
Frequently asked questions
Does Testosil actually work?
To see if Testosil works, we recommend getting bloodwork done of your testosterone levels before starting it, and after using it for a little while, so you can see if there are any changes. It usually takes 3 to 6 weeks to see slight to moderate results such as improved mood and sex drive. More noticeable results such as increased muscle mass usually occur within 3 to 6 months.
Do any testosterone boosters actually work?
A 2023 review study found that most testosterone boosters don’t make meaningful change in testosterone levels. Some exceptions are noted in the study, such as beta-hydroxy-methylbutyrate and betaine, which may be effective for male athletes.
Can you boost your testosterone naturally?
Eating healthy whole foods, exercising, and getting quality sleep may help. Try to lower stress when possible, too, as lower cortisol levels can negatively impact testosterone levels. Some initial studies have found that Vitamin D may help raise your testosterone levels, though more research is needed. We also recommend taking a men’s multivitamin supplement to ensure your recommended daily values are being met.
