Comparing BPC suppliers — what does a legit COA actually look like for this compound?
29 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?
6 Replies
212 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
51 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.
14 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.
29 posts
22 posts
I got burned once by a vendor who sent me a "COA" that was literally just a PDF with their logo and a single number. Ordered from them anyway cause the price was stupid cheap, and the stuff did basically nothing. After that I started asking for actual HPLC data and MS confirmation. Now if someone won't provide chromatogram images and at least confirm the molecular weight matches, I don't bother. The peptide content thing is real too, I've seen some batches where half the weight was just filler salts. Learned to ask for both numbers or move on.
45 posts
nah but real talk, even if you get a legit looking COA with chromatograms and all that, you still have no way to verify it's actually from that batch you ordered. could be fake, could be from a different batch entirely, could be six months old. seen plenty of people get "official" looking PDFs that turned out to be completely fabricated. the only way to actually know what you got is to test it yourself or know someone who can, which most people aren't doing.