For laboratory research use only — not for human or veterinary consumption.
The Peptide Index
PI-016

NAD+

Cellular coenzyme (not a peptide; included as a research cofactor)

A coenzyme central to cellular energy metabolism and DNA-repair signaling. Levels decline with age, making it a major focus of longevity and mitochondrial research. Included here as a commonly co-studied research cofactor.

Mechanism under study

Serves as an essential electron carrier in redox reactions and a substrate for sirtuins and PARPs — enzymes tied to DNA repair, metabolic regulation, and cellular stress responses.

Research-reported dosing

Research references span a wide range (e.g., ~100–500 mg subcutaneous references, plus IV protocols). Oral precursors are studied separately. Not an established therapeutic here.

Reconstitution

Based on a standard 500 mg vial: with 3 mL bacteriostatic water = 166,667 mcg/mL (166.7 mg/mL); 1 unit ≈ 1.7 mg.

A 50 mg dose ≈ 30 units (1666.67 mcg per unit).

Open this mix in the calculator →Source research-grade NAD+ ↗

Dosing figures describe how this compound appears in the research literature and research-community references. They are not a recommendation for human use.

NAD+ FAQ

What is NAD+?

A coenzyme central to cellular energy metabolism and DNA-repair signaling. Levels decline with age, making it a major focus of longevity and mitochondrial research. Included here as a commonly co-studied research cofactor.

What is the half-life of NAD+?

Rapidly metabolized; precursors (NMN, NR) are frequently studied for oral bioavailability.

What is the research-reported dosing for NAD+?

Research references span a wide range (e.g., ~100–500 mg subcutaneous references, plus IV protocols). Oral precursors are studied separately. Not an established therapeutic here.

How is NAD+ reconstituted?

Based on a standard 500 mg vial: with 3 mL bacteriostatic water = 166,667 mcg/mL (166.7 mg/mL); 1 unit ≈ 1.7 mg.

Is NAD+ FDA-approved?

No — NAD+ is not FDA-approved and is sold for laboratory research use only.

References

Guides featuring NAD+

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