I got tired of watching people buy sketchy peptides off Telegram, so I built a price and purity comparison tool

A few months ago I kept seeing the same thing on TikTok: people in the comments buying grey-market peptides from random Telegram channels sourcing directly from Chinese labs. No testing, no verification, no idea what's actually in the vial. Just a price and a promise.

It genuinely concerned me. People are injecting this stuff. And the reason they end up on Telegram in the first place is because the legitimate vendor market is so confusing and opaque that they don't know where else to go or who to trust.

So I tried to build something that fixes that.

peptide-compare.com is a free, independent price comparison platform for research peptides. It scrapes pricing from 50+ vendors twice a week, normalizes everything to price per milligram, and cross-references third-party purity data from Finnrick Research (blind testing) and Janoshik Analytical.

The idea is simple: if people can see every vendor's pricing and purity data in one place, they don't need to gamble on some anonymous Telegram source. They can make an informed decision.

What's on the site right now:

- Side-by-side price comparison for 70+ peptides across 50+ vendors

- Per-variant pricing (5mg vs 10mg vs 30mg compared properly)

- Vendor trust scores based on independent lab testing, not self-reported COAs

- Head-to-head vendor comparisons

- Best vendor rankings by peptide category

- Free reconstitution calculator

- Stock availability tracking

No vendor can pay to rank higher. Bad purity scores = low ranking, regardless of whether they're a partner.

I started building this in January and soft-launched a couple weeks ago. Still refining the scraping system and adding vendors. Very much a v1.

I want honest feedback. What's missing? What's broken? What vendors should I add? Tear it apart.

peptide-compare.com