Testrol is a testosterone booster manufactured by GAT Sport. It ranks 226 out of 285 testosterone boosters and earned an overall thumbs-down recommendation based on seven factors including nutrition label transparency, ingredients, dosing, claims, research rating, and ranking.


Testrol earned a thumbs-down recommendation. This recommendation is based on the criteria listed below. To earn an overall thumbs-up recommendation, a product must earn a thumbs-up in at least four of the seven areas below. Click on a graded area for an in-depth analysis.

Graded Area Thumb Up or Down
Effectiveness Rating
Ingredient Dosing
Research Rating
Nutrition Label Transparency
Ranking Within Category
Overall Recommendation

Vote Statistics

1 to 5 Star Rating Votes Votes for products are cast in two ways. First, visitors can rate each product with a 1 to 5 star rating. These votes are cast on a product's rating page (this page - below).

There have been no 1 to 5 star votes cast on Testrol; add yours below.

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Comparison Votes Visitors can also vote on which product works better on comparison pages. Comparison pages are a side-by-side analysis between two supplement products. The votes below illustrate whether visitors prefer Testrol, or the products listed in the table below. The number next to the thumb up is how many votes Testrol won; the number next to the thumb down is how many votes it lost to the other product.

Comparison Votes
Total Votes Won/Lost 1 / 1
vs. Animal Stak 0 / 1
vs. Test HD 1 / 0

Table of Contents

  1. Simple Report
  2. Detailed Report
  3. Ranking Within Category
  4. Summary

Testrol Simple Report

  • Product Name: Testrol
  • Manufacturer: GAT Sport
  • Manufacturer Website: GAT Sport's Homepage
  • Manufacturer Social Media:
  • Supplement Category: Testosterone Boosters
  • Serving Size: 2 tablets
  • Effectiveness Rating: 1.79 out of 3
  • Number of Ingredients: 14
  • Research Rating: 17 (above 60 indicates sufficient research)
  • Nutrition Label Transparency Score: 79%
  • Ranking within Testosterone Boosters: 226 out of 285 (bottom third within category)
  • Ranking within all Supplement Products: 4,142 out of 4,526 (bottom third of all products)

Testrol Detailed Report

The detailed report provides an in-depth analysis of the product's rating. In addition to showing ratings for each area, this report also provides the required criteria for a thumbs-up in each section.

Effectiveness Rating

Testrol earned a thumbs-up in this category because its effectiveness rating is 1.79. A product's effectiveness rating must be at least 1.5 to receive a thumbs-up in this area. This effectiveness rating means Testrol is made up of a mix of both high and low-quality ingredients and may lead to some positive results.

This category illustrates how well a product works based on what the research says about its ingredients. Researchers conduct studies on supplement ingredients to gauge effectiveness. The database grades products on how effective their ingredients are. The effectiveness rating of supplement products is evaluated on a 3 point scale: 3.0 is the most effective, 1.0 is the least effective.


Testrol earned a thumbs-down in this category because it contains 0% extremely and/or moderately effective ingredients. A product must contain at least 75% extremely and/or moderately effective ingredients to receive a thumbs-up in this area.

This category rates a product's ingredient makeup. A product should contain mostly extremely and/or moderately effective ingredients with little or no ineffective ones. The database categorizes ingredients as extremely, moderately, or ineffective based on conclusions from research articles.

Testrol contains:

  • unrated ingredients: 5 (the database does not contain information on these ingredients)
  • total ingredients: 14

The following table lists all ingredients found in this product as well as their effectiveness ratings and amounts (if listed).

Ingredient Effectiveness Rating
Mucuna Pruriens 100mg 3 out of 3
Tongkat Ali (Eurycoma Longifolia) 100mg 2.1 out of 3
Selenium 50mcg 2 out of 3
Zinc 30mg 1.8 out of 3
Magnesium 450mg 1.6 out of 3
Arginine 150mg 1.6 out of 3
Fenugreek 100mg 1.6 out of 3
Tribulus Terrestris 500mg 1.4 out of 3
Ginkgo Biloba 100mg 1 out of 3
Avena Sativa* not rated
Horny Goat Weed* not rated
Saw Palmetto* not rated
Damiana Leaf* not rated
Cnidium Monnieri* not rated
Product Effectiveness Rating 1.79

* These ingredients are not included in the Supplement Database.

Note: These ingredients are accurate as of September 15, 2019.

Ingredient Articles

Ingredient Dosing

Testrol earned a thumbs-down in this category because 25% of its ingredients are dosed within the effective range. Seventy-five (75)% of product's ingredients must be dosed within the effective range to receive a thumbs-up in this area.

This category compares a product's ingredient dosing to effective doses found in research articles and doses used in other products. When researchers study the efficacy of supplement ingredients, they use specific doses. Manufacturers should create products with ingredient doses that fall within established effective ranges.

Testrol Dosing Compared to Research

This section is a comparison of ingredient doses found in Testrol to amounts used in research articles. The first column contains the name of the ingredient as well as the amount. The second column contains the range of effective doses for that ingredient. Note: not all ingredients in the database contain dosing information; only ingredients with scientific dosing information are included in this analysis.

A green checkmark is shown if the ingredient amount falls within the effective range.

A down arrow is shown if an ingredient amount is lower than the effective range.

Ingredient & Amount Effective Range
Tribulus Terrestris 0.5g 0.75g - 1.25g
Arginine 150mg 500mg
Mucuna Pruriens 0.1g 5g
Tongkat Ali (Eurycoma Longifolia) 100mg 100mg - 200mg

Testrol Dosing Compared to Other Products

This section is a comparison of ingredient doses found in Testrol to amounts used in other products. The first column displays the ingredient and amount. The second column displays the average amount of the ingredient found across all products in the database. The final column displays the range found across all products in the database.

An orange up or down arrow is shown if the ingredient amount is higher or lower than the average.

An equal sign is shown if the ingredient amount is equal to the average.

Ingredient & Amount Average Range
Magnesium 0.45g 0.12g 0g - 1g
Zinc 0.03g 0.03g 0g - 3.12g
Selenium 50mcg 90mcg 0mcg - 400mcg
Tribulus Terrestris 0.5g 0.49g 0.02g - 2g
Avena Sativa 500mg 233.75mg 20mg - 500mg
Arginine 0.15g 1.08g 0.01g - 7.26g
Mucuna Pruriens 0.1g 5.64g 0g - 750g
Fenugreek 0.1g 0.39g 0.01g - 1.1g
Ginkgo Biloba 100mg 98.23mg 2.7mg - 300mg
Tongkat Ali (Eurycoma Longifolia) 100mg 170.47mg 5mg - 800mg
Horny Goat Weed 0.1g 0.24g 0.01g - 1.6g


Testrol earned a thumbs-down in this category because 58% of its claims are rated as either extremely or moderately effective. Seventy-five (75)% of a product's claims must be rated as extremely or moderately effective to receive a thumbs-up in this area.

The product’s effectiveness rating is an overall picture of how well a product does or doesn't work. Individual studies research an ingredient's effects on certain claims. For example: does creatine monohydrate increase strength, or does beta alanine improve running performance?

The Supplement Database compiles the conclusions of these studies, and based on a product's ingredient makeup, calculates how well a product does on various claims. The claims below are organized by effectiveness (extremely, moderately, ineffective).

Research Rating

Testrol earned a thumbs-down in this category because its research rating is 17. A product's research rating must be at least 60 to receive a thumbs-up in this area.

A research rating of 17 means there is an insufficient amount of research on the product's ingredients to ensure its effectiveness rating is valid.

The research rating is a measure of how much research has been conducted on a product's ingredient makeup. Manufacturers often rely on ingredients without adequate research backing. They may do this to compete with other products that are already using poorly researched ingredients. They may also only use a very small amount of cherry-picked research as a poor justification to use certain ingredients.

The amount of research contained in the database on a product's ingredients determines its research rating. Products with higher ratings are made up of thoroughly researched ingredients.

Nutrition Label and Ingredient Transparency

Testrol earned a thumbs-down in this category because it discloses 79% of its ingredient amounts. A product must disclose all ingredient amounts to receive a thumbs-up in this area.

Nutrition label transparency refers to how many ingredients are listed with amounts on the product label. Many supplement manufacturers hide ingredient amounts under the guise of great-sounding proprietary blends such as "Maximum Muscular Size Enhancer" or "Anabolic Cell Strength Matrix."

When manufacturers use proprietary blends, they can hide ingredient amounts making it difficult for consumers to know whether a product is effective.

Testrol contains:

  • total ingredients: 14
  • ingredients with amounts listed: 11
  • ingredients without amounts listed: 3
  • percent of ingredient amounts disclosed: 79%

Product Label

The label below was generated from the information contained in the database about the product's ingredients and amounts. Actual product labels may differ in appearance.

Testrol by GAT Sport Product Label

Ranking Within Category

Testrol earned a thumbs-down in this category because it ranks 226 out of 285 in the testosterone booster category (bottom third). A product must be ranked in the top two-thirds of its category to receive a thumbs-up in this area.

Testrol ranks 226 out of 285 in the Testosterone Boosters category and 4,142 out of 4,526 in the entire database. The table below lists comparisons with similarly ranked testosterone booster. Click on a link for an in-depth comparison between the two.

Product Comparison
Testrol vs Test Boost
Testrol vs Test Black
Testrol vs Super Test Capsules
Testrol vs EVL Test
Testrol vs Test Revolution

Testrol vs Other GAT Sport Testosterone Boosters

Manufacturers often create multiple products within the same category. These products are sometimes similar but marketed to different consumers with varying prices. The following table allows you to compare Testrol against its sister products; products manufactured by GAT Sport within the testosterone boosters category.

Product Comparison
Testrol vs Testrol Elite
Testrol vs Testrol Gold ES

See more comparisons: Is Testrol the best testosterone booster?


Graded Area Reason
Effectiveness Rating rating is greater or equal to the required 1.5
Ingredients less than 75% of ingredients are rated as effective
Ingredient Dosing less than 75% of ingredients are dosed properly
Claims less than 75% of claims are rated as effective
Research Rating research rating is lower than the required 60
Nutrition Label Transparency does not disclose all ingredient amounts on label
Ranking Within Category ranks in the bottom third of category
Overall Recommendation received a thumbs down in the majority of areas

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