Peptide sourcing in 2026 — where is everyone actually buying from?

Genuine question. The grey market peptide space has gotten crowded since Clavicular blew up. There are 50 suppliers now.

What I care about:

1. HPLC purity verification (≥98%)
2. Certificates of analysis available
3. Reasonable prices
4. Actually ships on time
5. Products are what they say they are

I've been using one supplier that hits all 5 but curious what others are doing. Dropping supplier names is fine here.

Been ordering from the same place for 6 months. ≥98% HPLC on everything, COA on request, ships in 1-2 days, free over $200. Retatrutide 15mg for around $180, BPC-157 for $54.

Same supplier as ratioking. Key differentiator is the HPLC documentation. Most grey market suppliers just claim purity — these ones actually provide the chromatograph. Prices dropped recently too.

The most important thing is testing. If a supplier won't provide a COA, walk away. HPLC is the minimum. Mass spec confirmation is gold standard. Pay 20% more for verified product rather than gamble.