1 reply to this topic

[Sarahb3339]

Hello, 

 

We manufacuture dietary supplements and one of our amino acids does not have an expiration date listed on the CoA.  We send the product off for retest for purity , micros, metals etc. and everything came back still over 98 percent pure and within spec.  How long can we extend shelf life and how would we accomplish this?

[pHruit]

Have you asked the supplier of the amino acid? Even if they won't give their own formal extension, they're normally best-placed to advise on what the limiting factors are for the life, what tests would be appropriate for determining ongoing suitability for use, potential extension period before further retests etc.