Prime Labs’ men’s testosterone booster is advertised as being “natural,” but a scientific study of its contents has shown that it, and other popular “natural” male enhancement pills, contain amounts of Sildenafil Citrate, a synthetic ingredient that is the active ingredient in Viagra and other ED medication.

A peer-reviewed academic study in the Journal of Integrative Medicine’s May 2021 issue tested the contents of a set of popular male enhancement supplements that are marketed as being “natural,” and found that all of them contained varying amounts of Sildenafil Citrate, a synthetic ingredient and the active ingredient in the Viagra and other erectile dysfunction medications. The tested products included:

1. Prime Lab’s Prime Test Testosterone Booster 
2. Nature’s Craft Horney Goat Weed
3. MACA supplement for improve energy and mood 
4. Leyzene’s “natural amplifier” male enhancement pill
5. GoldenX’s “all-natural” Horny Goat Weed product 
6. Alphaman XL’s  “natural” male enhancement pills 

The authors of the study concluded that the inclusion of this synthetic ingredient was not only misleading, as it was not declared, but was potentially dangerous as the drug may have adverse interactions with other medications or medical conditions, particularly relating to hypertension and cardiac disorders. Customers may have claims for false advertising, and for damages arising from their use of the supplements.

Sales Estimates: 

Of the 6 products listed above, Prime Lab’s Prime Test Testosterone Booster is the most widely sold. The yearly Amazon sales volume for the product is $4,231,483.20. The product was released on October 27, 2016. The total sales volume since the product’s release is approximately $22,920,534. These figures do not include sales on sites other than Amazon including its own website. The figures also do not include retailers who sell the product, such as Walmart. Considering this, total sales volume could likely be closer to $50,000,000.