Why Peptly exists.

We got tired of the bro forums, the snake oil, and the gap where evidence-led peptide tools should live.

The problem we kept hitting

The peptide world is a mess. Forums full of unverified claims. Suppliers with no accountability. Doses pulled from random YouTube comments. A regulatory grey zone that means real users have nowhere reputable to track what they're actually doing.

The people we kept meeting — cautious, curious, evidence-led adults — were stuck using spreadsheets, Notes apps, and memory. There had to be something better.

What we wanted to build

A logbook, not a salesman. Honest about uncertainty. Never pretending to be medical. Surfacing what works and what doesn't. The kind of tool that holds up over time because it's built on respect for the user, not engagement metrics.

The principles came first; the product followed. We're not chasing a category. We're building the thing we wanted to use ourselves.

Where we are now

102 peptides catalogued with 35 fields each. 28 curated stacks. 30 evidence-backed citations and counting. A small UK-based team building this in the open, deliberately slowly, and listening to users at every step.

Our values

What we hold to.

Transparency over hype

We surface what didn't work just as loudly as what did.

Respect the user

You're an adult. We treat you like one.

Privacy first

Your data is yours. We never sell it.

Science-led, not preachy

Evidence levels labelled honestly. No miracle claims.

Build trust slowly, lose it fast

We measure ourselves on what we don't promise.

Who builds Peptly

A small UK-based team.

We're not hiring yet, but if you'd like to be the first to know when we open roles or want to be considered as an advisor, get in touch.

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