Live · 27.3k readers this week

Should you actually take it? Real verdicts on the peptides everyone’s Googling.

Hype, hope, or real? Side-by-side: what the internet is claiming, what the evidence backs up, and whether it’s worth your money.

Educational reference. Not medical advice.

SpecimenBPC-157 reference chain
GEPPPGKPADDAGLV
Formula
C62H98N16O22
Mass
1419.53
Evidence
Animal / preclinical
Residues
15

Reality checks

Hot takes, fact-checked.

Browse all
Fat Loss + GLP-1s5 minApproved

The FDA Closed Its Compounded Tirzepatide Comment Window. The Drug's 4-Year Heart Trial Is the Part Neither Side Is Citing.

The comment period on permanently banning bulk-compounded tirzepatide just closed — and the approved drug's clinical case has never been stronger.

Fitness + Recovery4 minAnimal / preclinical

IGF-1 LR3 Is Having a Moment. Here's the Part TikTok Isn't Telling You.

The muscle-growth peptide flooding fitness TikTok this month has a real biological mechanism — and essentially no human clinical trials behind it.

Endogenous / Biology5 minApproved

The INSULIN Act Passed Committee This Week. The Peptide Behind the Bill Is Stranger Than the Politics.

A bipartisan Senate bill would cap insulin at $35 a month — the peptide at the center just got its biggest engineering milestone in decades.

Fat Loss + GLP-1s4 minHuman-supported

GIP Is the Hormone in Tirzepatide That Scientists Can't Stop Arguing About.

A Nature Metabolism study published last month explains why both blocking and activating GIP cause weight loss — through entirely different parts of the brain.

Endogenous / Biology4 minHuman-supported

Orexin-A Just Became the Most Important Neuropeptide Nobody Was Watching. The FDA Made It Happen.

This week's FDA approval of the first orexin receptor agonist for narcolepsy type 1 is really a story about a neuropeptide your hypothalamus makes — and what happens when the cells that produce it are gone.

Fat Loss + GLP-1s4 minEarly human

Survodutide Lost a Quarter of Its Patients to Side Effects. Three Weeks Later, Boehringer Announced a Replacement.

The new GLP-1 challenger posted the best liver fat numbers in the game. It also had the worst dropout rate.

Browse all 91 reality checks

Search the index

Find the peptide everyone’s talking about. See if it’s real.

109peptides decoded40FDA-approved93with human data
10 Showing top 10 of 109 — search to see more
Browse all 109 peptides in the Atlas
What people are asking right nowSemaglutideShould you actually try semaglutide for weight loss?TirzepatideTirzepatide vs Ozempic — which one actually works?BPC-157Is BPC-157 the recovery hack — or all hype?

How we cut through the noise

The hype, the science, and where they don’t match.

Browse all

01 / PROFILE

Peptide Profiles

Each entry explains what the peptide is, why people search for it, the proposed mechanism, and where the evidence stops.

BPC-157Animal / preclinicalRecovery claims

02 / NEWS

Reality checks, daily

Clickbait headlines with real receipts. Daily article on a trending peptide — what people are claiming, what the evidence actually shows, where the line is.

TRIALSPUBMEDLABELS

03 / SAFETY

Safety Context

Profiles include risks, unknowns, approval context, and clear boundaries around dosing, sourcing, and personal medical advice.

SAFETY NOTEEducational content only; clinical decisions belong with qualified care.

04 / CATEGORY

Category Index

Compare fitness and recovery, GLP-1 and metabolic, longevity and skin, endogenous biology, and approved clinical peptides.

Compact category topologyN01N02N03N04N05N06N07N08PROFILE MAPEVIDENCE LAYERCATEGORY CLUSTER
Evidence scanner

Every claim gets a label before it gets a headline.

PeptideFactCheck separates approved use, human signal, early research, preclinical biology, anecdotes, and unknowns so curiosity does not become fake certainty.

ApprovedOfficial regulatory approval exists for at least one specific use.
Human-supportedHuman clinical data supports at least some claims, with scope and limits made explicit.
Early humanSmall, preliminary, or narrow human studies exist, but the evidence is not mature.
Animal / preclinicalThe strongest evidence is animal, cell, or mechanism research rather than clinical outcomes.
AnecdotalMost public claims come from user reports, clinics, vendors, forums, or social media.
UnknownReliable source data is too sparse or inconsistent to classify confidently.

Why you can trust the verdicts

We don’t take influencers’ word for it. Here’s who we DO trust.

IUPHAR/BPS, PubChem, UniProt, RCSB PDB, PubMed, Europe PMC, and ClinicalTrials.gov are used for molecular and research context.

FDA Orange Book, DailyMed, openFDA, and FDA safety communications are used for U.S. regulatory and label context.

Vendor pages, forum posts, and clinic claims can explain public interest, but they are not treated as authoritative evidence.

SAFETY NOTEThis content is educational only and does not replace medical advice. Peptide use may carry risks and should be discussed with a qualified medical professional.