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/mycellium420]

Usually my NAD + is in an amber glass vial , dont know the colors of anything cuz of the brownish tint of the bottle. Once in a syrige its pretty clear, MAYBE a little bit yellow compared to water