Understand every peptide. Explain it with confidence.

110 peptides, explained in plain English. Each one rated for evidence and for safety separately, with United States and Australian regulatory status, dated.

Coming soon Browse all 110 free

One payment. PDF and EPUB. 60-day refund. Edition 1.0, verified September 2026.

110peptides, one structure each

160primary sources, every claim cited

2markets, every status dated

55where safety is not well understood, said plainly

What is in it

110 peptidesEvery entry follows the same structure, so they can be compared
Two separate ratingsEvidence and Safety Confidence are different questions and are never merged
United States and Australia, datedEvery regulatory statement carries the date it was checked
160 primary sourcesRegulators, peer-reviewed literature, trial registries and approved labels
Updated when the rules changeRegulation moved four times in 2026. Edition 1.x updates are free

Why this exists

Most of what ranks for a peptide search is written by someone selling the compound. Advice circulates undated while the rules keep moving. Trial results, animal studies and personal reports get blended into one paragraph, and an AI summary will give you a different answer each time you ask.

The interest is deserved. Researchers have spent decades on some of these compounds. What has been missing is one place that says plainly where each one stands today.

Two ratings, never merged

Evidence answers how strong the human evidence is.Safety Confidence answers how well the safety profile is understood. A compound can rate well on one and poorly on the other, which is exactly how a peptide with no human trials ends up looking safe.

★★★★★20

★★★★☆12

★★★☆☆17

★★☆☆☆33

★☆☆☆☆28

28 of the 110 entries rate one star, and 55have safety that is poorly characterised or largely unknown. Only 20 rate five. Those numbers are the reason to trust the ones that rate well.How we rate evidence.

Read three entries free

The summary panel for every peptide is public. Start with these:

BPC-157Tendon, joint and gut repair · Evidence ★★☆☆☆ · Safety: Poorly characterised
RetatrutideThe next-generation weight-loss drug that isn't approved yet · Evidence ★★☆☆☆ · Safety: Poorly characterised
GHK-CuSkin renewal and collagen support · Evidence ★★☆☆☆ · Safety: well-characterised (topical) / poorly characterised (injected)

See all 110 entries

What this book is not

It is not medical advice, and it does not recommend any peptide. Dosing appears in four labelled bands, including what is commonly reported for non-approved use, described and not recommended. There are no protocols, no cycles, no reconstitution calculations and no injection technique. It is written to make the conversation with a clinician better, not to replace it.

Independence

No sponsors. No supplier relationships. No links or commissions anywhere in the book. The only thing sold here is the book itself.Read the editorial policy.