Hello,
I practice in the realm of dietary supplement manufacturing and we have an ingredient that comes from the supplier with no expiration date on the CoA. This ingredient is required to meet our spec at 96% purity. It was said to be best by 3 years, however, the product was tested and is still within spec. Is it plausible to extend the shelf based off of a third party test showing that it is still in fact free of contamination and meeting product specs? If so for how long? I believe I read somewhere this can be done for a year at a time with a max of two years? Not sure how valid this information is.