Inside the booming, gray-market world of injectable peptides 

Injectable peptides are all the rage for many health-conscious Americans, thanks in part to the hype coming from the nation’s top health official. But enthusiasm might be outpacing regulatory controls and public understanding of what these products truly are.

Peptides, which are combinations of amino acids, are easy to buy. Store shelves are lined with products touting various health benefits: Collagen peptides to enhance skin elasticity, muscle recovery peptides for after workouts and “Botox in a bottle” to relax facial muscles peptides, among many others. 

But in certain corners of the internet, there are communities of people who take this a step further, sourcing raw, research-grade peptides from dubious sources so they can reconstitute them at home and inject themselves with the aim of improving their health or altering their appearance.

The Hill explored these shady corners of the online peptide market for this article, engaging with vendors promising pure peptides but using fake profile pictures and selling goods not meant for human consumption. It even placed an order for a vial of peptides, labelled not for human consumption but touted for its health benefits. 

Skyrocketing Google searches for “peptide” and associated compounds underscore the exploding market for them. And recent actions by federal regulators are likely to only enhance this growing interest.

Health and Human Services (HHS) Secretary Robert F. Kennedy Jr. describes himself as “a big fan of peptides” and has promised action to expand access to them.

Strictly speaking, peptides are protein fragments, combinations of different amino acids that act as signaling molecules in the body. In online forums and chat groups, however, peptides are discussed in the same way that one might talk about power-ups in a video game.

“Darken eyebrows and facial hair?” one person asks on a popular peptide forum.

In another, one asks, “Best price on [human growth hormone] right now?”

Peptides do occur naturally; the human body produces several on its own, but many of those in-demand are synthetic.

Cosmetic and dietary products with peptides can be found in abundance, all claiming to offer health and beauty benefits through the allure of clinical data. Perhaps the most well-known today are the blockbuster GLP-1 injectable drugs semaglutide and tirzepatide, sold commercially as Ozempic and Mounjaro.

Peptide therapy enthusiasts expound on the benefits of vials containing compounds like glutathione and GHK-Cu, naturally occurring peptides lauded for their anti-aging, antioxidant benefits, or BPC-157, studied for its regenerative, healing properties.

Proponents often combine several different peptides in what they call a “stack.”

“Most of these are not approved drugs. They are substances, chemicals, bioactive chemicals that have been studied, but not in human clinical trials, generally speaking,” Edgar J. Asebey, partner in the law firm Frier Levitt’s Life Science Group, told The Hill.........

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