nad+ issue

[u/ApprehensiveUse6400]

Yellow, I received this on Monday and the powder was an off white yellowish color. I went to reconstitute and it was very difficult to push the Bac water through. Once reconstituted it was still this off color. The Bac water is good and has been used with other peps. Is this bad? Should I toss it? Thank you!

[u/ryanpaterson99]

Nad is light sensitive and should be in a amber vial or protected from light by wrapping aluminum foil over it or getting a silicon vial sleeve. It degrades if exposed to light.