An honest peptide reference
Peptide Nation
What each peptide is claimed to do, what the evidence actually supports, and what to watch out for — built from social-first research across 106 compounds, with every claim graded by how well it holds up.
Browse by category
Healing & Recovery
14 compounds researched.
GH Secretagogues
13 compounds researched.
Metabolic & Weight Loss
14 compounds researched.
Cognitive & Nootropic
13 compounds researched.
Skin, Hair & Cosmetic
14 compounds researched.
Immune & Antimicrobial
12 compounds researched.
Longevity & Mitochondrial
13 compounds researched.
Libido, Tanning, Sleep & Niche
13 compounds researched.
How to read the evidence tiers
Strong, cross-platform evidence: owner communities, repeated independent sourcing, verifiable lab testing.
Solid but narrower evidence: some owner signal, more anecdote than verification.
Thin evidence. Mostly vendor claims and scattered anecdotes — read with care.
Included for comparison. Effectively no verifiable community or clinical signal.
Start with the guides
Peptides for Beginners: What 106 Researched Compounds Taught Us About Where to Start (and What to Skip)
Before you spend a dollar, five things the communities wish someone had told them on day one.
Healing Peptides in 2026: Two Internets, One Real Question
This category is a 14-product market built on almost no human clinical evidence — and it runs anyway, because tens of thousands of people with stubborn tendon, ligament, and gut complaints say they've run out of other options. The research files behind this review cover every item, priced and tiered from real community observation (September 2026). Here is what that evidence actually supports, and what it doesn't.
Growth Hormone Secretagogues: Who Should Buy What, and What to Dodge in 2026
Growth hormone secretagogues are the peptide scene's workaround for an awkward fact: actual human growth hormone is expensive, prescription-only, and counterfeited relentlessly. Instead of injecting GH itself, these compounds nudge your own pituitary to pulse more of it — either by mimicking GHRH, the "go" signal (CJC-1295, sermorelin, tesamorelin), or by hitting the ghrelin receptor, the "amplify" signal (ipamorelin, the GHRPs, hexarelin).
The Metabolic & Weight Loss Category Is a Two-Class Market — and You Should Only Shop in One of Them
The most important fact about this category in September 2026 isn't which drug works best. It's that there are two separate markets wearing the same costume. On one side: prescription incretin drugs that have driven two decades of clinical trials, are now sitting at their cheapest self-pay prices in history, and are discussed in Facebook support groups so large they could fill stadiums.
Cognitive & Nootropic Peptides: The Russian Pair Is Real; Everything Else Is a Frontier
Thirteen compounds are pretending to be one market. They aren't. This category is really two different things sharing shelf space: a handful of registered Russian medicines — Semax, Selank, Cerebrolysin, Cortexin, and sideways in, Noopept — that are sold outside Russia as gray-market "research chemicals," plus a frontier of speculative analogs and mechanisms with no human data at all.
The Honest Buyer's Guide to Cosmetic Peptides
Nobody in the cosmetic peptide aisle is selling medicine — and that sentence, which the research files state flatly on every one of the 14 items, is the single most important thing to absorb before spending a cent. Everything here is a cosmetic ingredient.
Immune & Antimicrobial Peptides: The Honest Buyer's Guide
Twelve immune and antimicrobial peptides walked into this review. Two of them — thymosin alpha-1 and LL-37 — have actual communities of people discussing actual use. Two more — thymalin and epithalon — are famous because of a single Instagram reel. One has real regulatory momentum and zero human trials. And five are genuine registered drugs in Russia that the entire English-speaking internet has somehow never heard of.
The Longevity Peptide Shelf, Reviewed: One Real Drug, One Cheap Sleep Favorite, and a Russian Belief System
The longevity peptide aisle is the strangest corner of the peptide world. Thirteen items, all promising to slow or reverse some aspect of aging — telomeres, mitochondria, senescent cells, whole organ systems — but they live in three different realities. In one corner sits the only peptide in this category with an actual FDA-approved drug label: Forzinity, approved September 2025 for Barth syndrome, with real clinical trials and a documented mechanism.
The Weird Corner of the Peptide Market: Libido, Tanning, Sleep & Niche — What the Communities Actually Say
This is the strangest shelf in the peptide shop. Thirteen compounds that share nothing except the fact that nobody could fit them anywhere else: desire drugs, tanning shots, a sleep peptide from 1977, fertility hormones, Russian bioregulators, and two GnRH-axis peptides with the most dangerous lore in the hobby.
Newsletter
Not medical advice. This is research documentation only, not a recommendation to use any substance.