Keep It Clear podcast

S04E31. What "Third Party Tested" Actually Means on Your Supplements

29/7/2026
0:00
39:02
Retroceder 15 segundos
Avanzar 15 segundos


That "third party tested" label on your supplements, peptides, and protein powder probably means a lot less than you think it does.

In this episode, Katie and Cris get spicy on one of the most misunderstood phrases in the wellness world: "third party tested." Cris breaks down the four levels of testing, from a company grading its own homework to truly independent watchdog testing, and explains why the version on almost every bottle tells you nothing about whether the product is actually safe. From peptide purity tests that skip heavy metals, to what the FDA does and doesn't check, to mushroom powders that are mostly starch, to how Amazon's warehouse system lets counterfeits slip into brand-name listings, this one will change how you read a label forever. If you've ever bought something because it said "third party tested" and felt safe, this is the episode for you.


In This Episode We Cover

  • The four levels of testing and why "third party tested" sits closer to the bottom than you'd expect.
  • Why a peptide can test 99.5% pure and still never get checked for mercury, lead, or arsenic.
  • How the 1994 DSHEA law means the FDA doesn't approve supplements before they hit the shelf.
  • Why the FDA inspects only about 5% of supplement facilities each year, in their own director's words.
  • How "mycelium on grain" mushroom products can be 30 to 40% starch with almost no active compounds.
  • Why Amazon's commingled inventory means even a brand's official listing can ship you a counterfeit.


Resources & Links Mentioned


Work With Us + Connect

Otros episodios de "Keep It Clear"