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SuppCo Tested | What We Learned Testing 44 Supplements Purchased on Amazon.com

In this special edition of SuppCo Tested, we analyzed every supplement we purchased on Amazon.com over the past year - across creatine, NAD⁺, Urolithin A, and berberine. 22 out of 44 products failed our active ingredient testing for label claims. We review the data and product origins to expose the e-commerce trends that may be driving such a high rate of failing supplements.

SuppCo Takes the Next Step with Function Health

A note from co-founders Steve and Nick: SuppCo is taking its next step as part of Function Health. Here's what's staying the same, what's changing, and what this means for connecting your supplement stack to your biology.

SuppCo Tested | Creatine Reality Check: The Failures We Found When Testing Popular Products

Independent laboratory testing of 11 popular creatine supplements reveals shocking results: while all 5 tested powders delivered on their promises, 4 out of 6 creatine gummies contained almost zero detectable creatine despite selling 50,000+ units monthly on Amazon. Our comprehensive analysis exposes widespread supplement failures and provides the data you need to make informed choices.