How we prove what's in the vial
The problem you already know about
If you have bought research peptides before, you have probably been burned, or you have read enough threads to know it happens. Underdosed vials. Wrong compound entirely. A "COA" that is a stock image, or a real certificate for a batch that has nothing to do with what shipped to you.
The category has a trust problem, and most suppliers respond to it by saying "trust us" louder.
What we do instead
Every lot goes to an independent laboratory. Not a sample lot. Not an annual audit. Every lot we sell.
The lab is named. You can look them up. "Third-party tested" without a name is a phrase, not a fact.
- Identity, is it actually the compound on the label
- Purity by HPLC-MS, and you can see the chromatogram
- Endotoxin, screened
- Sterility, screened
Most suppliers test for purity alone, if they test at all. Endotoxin and sterility screening is the part almost nobody does, and it is the part that matters most for anything going near a cell culture.
The certificate is on the product page, tied to the lot. Before you buy. Not on request. Not after you have paid.
And when the data is not flattering
We publish that too. The GHK-Cu product page cites a controlled study that found no significant objective effect, because it exists, because you would find it eventually, and because a supplier who hides inconvenient evidence about their best-seller will hide other things.
That is not modesty. It is the entire product.