
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.
The latest

News
The Peptide Stopgap Is Now a Document Under White House Review
On October 14 the FDA sent an 'Interim Access Policy for Compounding Using Certain Peptides' to the White House regulatory office. Its text is not public. What the government filing confirms, what anonymous sources add, and what has not changed.
NewsThe FDA Has a New Word for Compounded Weight Drugs: Pretextual.
NewsThe Triple Agonist Finished Phase 3. Here Are the Numbers, Without the Adjectives.
NewsFive Warning Letters in One Week. The FDA Just Spelled Out What 'Research Use Only' Does Not Cover.
−14.9%
mean weight change, semaglutide
STEP-1 · NEJM 2021
−20.9%
mean weight change, tirzepatide
SURMOUNT-1 · NEJM 2022
−24.2%
retatrutide, phase 2
NEJM 2023
−20%
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 →
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.

Repair
0
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.

Growth-hormone axis
3
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 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.
For research use only · Not for human or veterinary use · No research compound discussed here is FDA-approved for any indication
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