NAD+

Pricing is fair for the purity level. Documentation is thorough and the COA is signed and dated.

Customer support answered a technical question about storage within hours. Will be ordering the larger size next.

Used in a comparative assay against two other suppliers — this lot showed the cleanest baseline by a wide margin.

Have tested several batches by NMR — clean spectra, no detectable solvent residues.

Have tested several batches by NMR — clean spectra, no detectable solvent residues.

Shipping was fast and the cold-chain held perfectly. Vials sealed properly, no signs of degradation.