We're seeing 99% or better with HPLC, and it's a white to off-white powder that handles well in formulation—most buyers go with the 10g or 25g vials for anti-aging capsules.
It's not for topical creams unless you're okay with water solubility and a short shelf life once reconstituted; basically, keep it dry at 2-8°C or you'll lose potency within 24 months.
GMP and ISO 9001 are in place, so COA you get is backed by real audits, and we usually have stock for orders of 50 units or so—confirm lead time if you need more.
One thing: the powder can clump if exposed to humidity during storage, but that doesn't affect purity (just break it up gently before use).
Anyway, this isn't for bulk animal feed or anything—it's tight tolerance for supplement makers who need consistent NAD+ levels, and we don't hide the CAS 53-84-9 on teh paperwork.