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The peptide era, decoded

The biggest shift in wellness is molecular.

Peptides went from research labs to everyone’s group chat. The Assay gets you fluent — the landmark numbers, the honest gaps, and verified material when you’re ready.

Get fluent Shop verified compounds

The latest

news · opinion · science · field guides

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News

The FDA Just Had Its Biggest Peptide Meeting in Years. Here's What Actually Happened.

An advisory committee recommended six peptides for the compounding bulks list this July — and half the internet misread it. What the vote means, what it doesn't, and the timeline nobody quotes.

NewsThe Compounding Boom Is Over. Here's What Ended It.

OpinionOpinion: 'Third-Party Tested' Is the Most Abused Phrase in Wellness

OpinionOpinion: Peptides Have an Influencer Problem, and It's Not the One You Think

OpinionOpinion: The Price Tells You Almost Nothing

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mean weight change, semaglutide

STEP-1 · NEJM 2021

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mean weight change, tirzepatide

SURMOUNT-1 · NEJM 2022

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retatrutide, phase 2

NEJM 2023

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major cardiac events, semaglutide

SELECT · NEJM 2023

Published means from landmark randomized trials — trial results, under trial conditions. We read the papers so the numbers stay honest.

The field, reviewed

all science reviews →

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Metabolic

−24.2%

best published mean, phase 2

Weight science just had its best decade ever

Landmark trials, headline numbers, and what comes next — read straight, no spin.

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Repair

completed human RCTs of BPC-157

Recovery is everyone’s obsession. Here’s the scorecard.

Big reputation, animal-sized evidence. Know the difference before you spend a dollar.

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Growth-hormone axis

evidence tiers in one family

The performance frontier, sorted by proof

One approved drug, one real human dataset, a family of maybes. Same shelf, very different receipts.

Before you buy anything, anywhere

Short reads that make you the hardest customer in the market to fool — ours included. Browse everything →

What Is a Peptide?

How to Read a Certificate of Analysis — and the Four Ways They Get Faked

What an HPLC Trace Shows — and What It Cannot

Reading a Peptide Study: Separating Signal From Noise

What the Community Gets Wrong About Peptides

What verification actually looks like

Not a badge on a product page. A chain you can follow.

Every Merit lot leaves a documented trail — from the sealed batch, through the instruments, onto a signed certificate, into an open library matched to the number on the vial in your hand.

The lot

a sealed, numbered batch

The assay

HPLC purity · MS identity

The certificate

signed, lot-specific

The library

open — match your vial

Don’t take a purity claim on faith. We publish ours.

Shop research compounds or read a real certificate first

For research use only · Not for human or veterinary use · No compound discussed here is FDA-approved for any indication