Test Booster*3's (by Grizzly Supplements) ability to increase testosterone is rated as 2.4 out of 3. This rating means the evidence is mixed on the product's ability to deliver on this claim. While some of the evidence supports its use, other evidence does not. Using Test Booster*3 to increase testosterone may lead to positive results. This rating is different from the product's overall rating and is based on what peer reviewed journal articles conclude on its ability to perform this one claim. This page contains an indepth analysis on how this claim-rating was calculated.

Note: The ratings on this page only deal with Test Booster*3's ability to increase testosterone. To view the product's overall rating, visit the product's main page: Test Booster*3.

Table of Contents

  1. Simple Report
  2. Detailed Report
  3. References

Simple Report

Detailed Report

The detailed report is an in-depth analysis on how Test Booster*3's rating for this particular claim was calculated.

Claim Effectiveness Ratings

Each supplement product is a blend of ingredients. The database uses peer reviewed journal articles to rate the ingredients. These ratings are also used to rate how well products perform overall as well as on individual claims.

The supplement ingredients listed in table below are identified as affecting Test Booster*3's ability to increase testosterone. The rating next to the ingredient describes the ingredient's ability to increase testosterone. These ratings are averaged together and provide the product's overall ability to deliver on the same claim.

Ingredients Increase Testosterone Rating
D-Aspartic Acid 1 out of 3
Shilajit Extract 3 out of 3
Ashwagandha Extract (Withania Somnifera) 3 out of 3
Tongkat Ali (Eurycoma Longifolia) 3 out of 3
Vitamin D3 2 out of 3
Product's Claim Effectiveness Rating 2.4 out of 3

Claim Research Ratings

The research rating describes how well an ingredient's ability to perform a certain claim (such as increase testosterone) has been researched. This rating is based on the amount of studies contained in the database on a particular ingredient and claim. Ingredient research ratings are averaged together to from the product's research rating for this specific cliam.

This rating is important because we need to know if there is enough research to make a valid conclusion on a product's worthiness. Ratings above 80 are ideal. Anything below 60 means there is not enoguh research to make a valid conclusion one way or another on a product's ability to deliver on this particular claim.

Ingredients Increase Testosterone Research Rating
D-Aspartic Acid
Shilajit Extract
Ashwagandha Extract (Withania Somnifera)
Tongkat Ali (Eurycoma Longifolia)
Vitamin D3
Product's Claim Research Rating


D-aspartic acid supplementation combined with 28 days of heavy resistance training has no effect on body composition, muscle strength, and serum hormones associated with the hypothalamo-pituitary-gonadal axis in resistance-trained men
Three and six grams supplementation of d-aspartic acid in resistance trained men
The effects of d-aspartic acid supplementation in resistance-trained men over a three month training period: A randomised controlled trial
Clinical evaluation of purified Shilajit on testosterone levels in healthy volunteers
Examining the effect of Withania somnifera supplementation on muscle strength and recovery: a randomized controlled trial
Standardised water‐soluble extract of Eurycoma longifolia, Tongkat ali, as testosterone booster for managing men with late‐onset hypogonadism?
Effect of Vitamin D Supplementation on Testosterone Levels in Men
Vitamin D supplementation and testosterone concentrations in male human subjects