NAD+ 500MG

NAD+ is nicotinamide adenine dinucleotide in its oxidised form. It is a coenzyme rather than a peptide: a dinucleotide of two nucleotides joined through their phosphate groups, one carrying an adenine base and the other a nicotinamide base.

Its role in biochemistry is as an electron carrier. The oxidised form accepts a hydride to become the reduced form NADH, and that couple underlies redox reactions across central metabolism, which is why it is catalogued as a cofactor rather than as a signalling molecule.

Because it is not a peptide it has no sequence, no receptor and no peptide-bond chemistry, so handling guidance written for peptides does not fully transfer to it.

Supplied here as 500mg of lyophilised powder in a 10ml vial.

Supplied as a lyophilised (freeze-dried) powder in a sealed vial. Lyophilisation removes water by sublimation, which is what allows the compound to remain stable at ambient temperature in transit where a solution would not.

Reconstitution in a laboratory setting is typically performed with bacteriostatic water introduced against the vial wall, and the vial swirled rather than shaken to bring the cake into solution without foaming.

Lyophilised and sealed, the vial is stable at 2 to 8 degrees Celsius and tolerates ambient temperature in transit. For storage beyond several months, minus 20 degrees Celsius is standard.

Once in solution the stability window shortens considerably and refrigeration is required. Repeated freeze-thaw cycles are the most common cause of degradation in a reconstituted peptide, so solutions are generally aliquoted rather than frozen and thawed as a single volume.

Every batch is independently tested through seven rounds of analysis. Identity is confirmed by mass spectrometry and purity quantified by reverse-phase HPLC, with the resulting Certificate of Analysis published against the specific batch rather than the product line.

Testing is performed by third-party laboratories operating to ISO 17025. The COA for the batch currently shipping is linked from this page and archived at /lab-tests.