Comparing BPC suppliers — what does a legit COA actually look like for this compound?
25 posts
Not asking where to buy. Asking: if a vendor sends me a COA, what am I actually supposed to be reading on it?
I've seen 'COAs' that are basically a logo and a line that says '99% pure.' I've seen ones with HPLC chromatograms, mass spec, purity %, peptide content %, sequence verification. Big range.
For BPC specifically — what should show up on a real COA and what's the bare minimum?
4 Replies
205 posts
Add: date of analysis, batch/lot number, and name of the testing lab. If the 'COA' is from the vendor's own QC it's worth less than one from an independent third party.
- CJC-1295 no DAC · 100 mcg · pre-bed · sub-Q
- Ipamorelin · 200 mcg · pre-bed · sub-Q
- BPC-157 · 500 mcg · 2x/day · sub-Q
50 posts
Real COA for a peptide should include: HPLC chromatogram (showing purity %), mass spec (confirming molecular weight matches the expected), peptide content % (what fraction of the powder is actually peptide vs salts/counterions/water), and ideally sequence confirmation via MS/MS. 'Purity 99%' with no chromatogram is a logo, not a COA.
12 posts
Also watch for 'peptide content' being quoted as a range or omitted entirely. 98% HPLC purity with 75% peptide content means a quarter of your vial is not peptide. Both numbers matter.
25 posts