Gorilla Mind Sigma Testosterone Booster - Made with Tongkat Ali and Fadogia Agrestis Extract to Support Higher Testosterone Level (120 Capsules)
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Monday, May 4
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Features
- FADOGIA AGRESTIS: A Nigerian shrub that increases LH (Luteinizing Hormone), which is the signal for the Testes to produce more testosterone. Interestingly, some individuals have reported increased teste size due to the supplementation of this ingredient. Anecdotally, users taking the recommended dosages of Fadogia Agrestis and Tongkat Ali have reported over 200 point increases (ng/dl) in total testosterone levels.
- PATENTED KSM-66 ASHWAGANDHA: Beyond this being the most clinically studied Ashwagandha on the market for its impact on Testosterone production and cortisol modulation, KSM-66 is a branded, full-spectrum extract that leverages a unique proprietary extraction process that preserves a high concentration of specific bioactive compounds that produce consistent and predictable results.
- THIRD PARTY TESTED: Our products undergo rigorous third-party testing, featuring accurate dosages and standardizations to guarantee that the vital constituents meet specifications, all verified by an accredited laboratory.
- ZERO PROPRIETARY BLENDS: Gorilla Mind is 100% transparent with the ingredients we select and the dosages we include in our products. Sigma by Gorilla Mind contains the clinically effective dosages of its ingredients to help you achieve the results you are seeking. Compare our product label to your current Testosterone booster!
Product Dimensions : 4.7 x 2.7 x 2.7 inches; 4.97 ounces
Item model number : 50025
Date First Available : November 18, 2022
Manufacturer : Gorilla Mind
Best Sellers Rank: #28,156 in Health & Household (See Top 100 in Health & Household) #65 in Sports Nutrition Testosterone Boosters
#65 in Sports Nutrition Testosterone Boosters:
Customer Reviews: 4.4 4.4 out of 5 stars (461)
Brand Name: Gorilla Mind
Primary Supplement Type: testosterone_support
Item Form: Capsule
Product Benefits: Supports higher testosterone levels and overall fertility metrics
Age Range Description: Adult
Container Type: Bottle
Dosage Form: Capsule
Model Name: Sigma
Supplement Formulation: Multi-Supplement
UPC: 850017020689
Manufacturer: Gorilla Mind
Manufacturer Part Number: 50025
Model Number: 50025
Unit Count: 120 Count
Item Dimensions: 4.7 x 2.7 x 2.7 inches
Number of Items: 1
Total Servings Per Container: 120
Flavor: Unflavored
Special Ingredients: Tongkat Ali (standardized to 1% Eurycomanone), Fadogia Agrestis Extract, KSM-66® Ashwagandha
Material Features: Natural
Material Type Free: Natural
Specific Uses For Product: Testosterone Support, Hormone Balance
Color: No Color
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, May 4
This item is non-returnable:
Non-returnable due to Food safety reasons
View our full returns policy here.
Non-returnable due to Food safety reasons
View our full returns policy here.
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Top Amazon Reviews
I grabbed Gorilla Mind Sigma because I kept seeing it recommended online and was curious if it actually works. I’ve tried a bunch of test boosters before, and most of them don’t do much, but this one actually made a difference for me. What I noticed: Better pumps and more energy in the gym workouts felt more intense and focused. Increased aggression: Not in a bad way, just felt a little more driven and ready to push myself. The wildest sign: I actually got some testicular soreness, which I’d seen mentioned by influencers who said it’s a sign you should cycle off after a while. It was weird but kind of confirmed to me that this stuff is doing something. Science-wise: From what I’ve read and based on my own experience, the Tongkat Ali and Fadogia extracts can definitely bump your testosterone a bit, especially if you’re borderline low like me, usually around 300 ng/dL. If your test is already super low, this probably won’t fix everything, but if you’re on the edge, you might notice a good boost people online report jumps from 400 to 600 ng/dL, but results vary by genetics. The pills: Easy to take, but there’s a little aftertaste probably from the black pepper in the mix. Nothing major. The price is a bit up there compared to standard vitamins, but not crazy for this type of supplement. Bottom line: This stuff actually does what it says if your test is low-normal and you’re lifting and eating right. Just be careful, don’t run it nonstop definitely cycle on and off, especially if you start to notice any weird side effects. Good option if you want a natural edge, but it’s not magic if your levels are extremely low.
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Reviewed in the United States on January 31, 2026 by Paulryanp
One of my go to workout supplements. Makes a big difference in your overall energy levels and resilience. High quality ingredients backed by research. Worth every penny
Reviewed in the United States on February 25, 2026 by Falling Leaves Kung Fu
Im a healthy and active 48 year old man starting to feel my age. I’ve tried a few supplements before but with little to no results. I wasn’t expecting anything from Sigma, so i got my bottle in and took one capsule, i noticed it made me take a nap and i woke up with a slight headache, i never get headaches. The Headache was temporary so i took another capsule before bed and slept very deeply and actually had dreams for the 1st time in years. Then i noticed the good mood i was in, and just more energy. So this stuff seems to be effective, i only take two a day, 1 in the late morning and 1 with dinner. Very high quality supplement and i will definitely be buying again.
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Reviewed in the United States on June 28, 2025 by Jad Blackmore
I've been using this supplement for over a year now, and it has proven itself to do what it claims. I have more energy, I heal and recover faster, I am feeling stronger in the gym and in training, and my overall feeling is that of say ten to twelve years younger! I am 54 years old and play sports and hunt and work construction all year long. I recommend all active men over 35 take this and see. My son is 23 and started using this a year ago and his sports performance has increases according to him. He also believes it's value is real!
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Reviewed in the United States on January 4, 2026 by MrT
It's a pretty good product however, its price is definitely not justified. I'd recommend researching the ingredients and buying the effective supplements individually instead.
Reviewed in the United States on February 27, 2026 by Alexander
My cognitive levels increased but not to a point that didn’t feel normal. I think for the price and how it helped me it’s a great product. I was looking for increased energy levels and that’s what I got.
Reviewed in the United States on January 16, 2026 by jairdisciple
I noticed no improvement in actual gym performance it cost way to much but.. the mental affects are amazing I felt more confident and really helped with stress. Turns out it’s the ashwagandha and magnesium in this product. Once I finished the bottle I noticed the mental change almost immediately so I did some research and got some ashwaganda and magnesium for much cheaper and got the same feelings I did on the sigma.
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Reviewed in the United States on August 17, 2025 by Mk
I actually like this product and my nephew recommended after having his testosterone tested prior to use and after showing increased results
Reviewed in the United States on April 5, 2026 by Jim C. Titus