Certificate of analysis lookup
Every TressVita vial carries a lot number. Enter it to see which product and lot it is, when the lot was tested, and its certificate of analysis.
Look up a lot
What the certificate shows
Each certificate reports the tests run on that lot before release: identity by mass spectrometry against the expected molecular weight, and purity by reversed-phase HPLC. Water content, acetate content and endotoxin are reported where the method applies. How we test.
If what you received doesn’t match its lot’s certificate, contact us and we’ll replace it. Members can also open the certificate for each lot they received from their account.