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Catalog/NAD+

NAD+

Also known as Nicotinamide Adenine Dinucleotide

Essential redox cofactor central to mitochondrial bioenergetics and sirtuin activity.

Overview

NAD+ is a ubiquitous coenzyme required for electron transport, sirtuin activity, and PARP-mediated DNA repair. Often supplied as a research reagent and increasingly as an investigational therapeutic.

Background

NAD+ (nicotinamide adenine dinucleotide) is not a peptide but a universal coenzyme, included here for its central place in metabolic and longevity research. Every cell uses it to carry electrons through energy metabolism and to power signaling enzymes.

Two enzyme families make NAD+ a focus of aging research: sirtuins, which depend on it to regulate gene expression and stress resistance, and PARPs, which use it for DNA repair. Cellular NAD+ declines with age, and restoring it — directly or via precursors — is widely studied.

Mechanism

Cofactor for hundreds of redox and signaling enzymes including sirtuins and PARPs.

Key research findings

  • Energy metabolism — essential electron carrier in the mitochondrial electron-transport chain.
  • Sirtuin activity — required cofactor for sirtuin-mediated longevity signaling.
  • DNA repair — consumed by PARP enzymes during repair.
  • Age-related decline — NAD+ falls with age, a central theme in longevity research.
  • Cofactor / reagent — supplied as a research reagent and investigational therapeutic.

How NAD+ is made

Behind every vial of NAD+ is the same exacting pipeline every research peptide runs — but the chemistry plays out differently for this molecule. Here is how NAD+, specifically, is brought into being.

  1. On paper first

    On paper, NAD+ is C21H27N7O14P2 — about 663.4 daltons of precisely arranged atoms. Before a single bond is made, the target sequence, salt form, and purity threshold are written down as the contract the finished material must meet.

  2. Built residue by residue

    NAD+ is assembled by solid-phase peptide synthesis — the chain grows one protected residue at a time on resin, and what you fail to build cleanly here you pay to remove later.

  3. Purity is won here

    The crude mixture — NAD+ plus its deletions and side products — is then separated on preparative HPLC, and where the cut is taken decides the difference between a genuinely pure peptide and a barely-passable one.

  4. Proven, then protected

    A real batch of NAD+ proves itself: identity confirmed by mass spectrometry against its ~663.4 Da, purity read directly off an analytical HPLC trace, water and counterion content measured. That batch-specific certificate of analysis is the only honest way to know what is actually in a vial of NAD+ — and a short, cold, accountable chain of custody is how that purity survives the trip to your bench.

Walk the full synthesis pipeline

Handling, storage & why purity is hard

Producing NAD+ to a genuine purity spec means solid-phase synthesis, preparative HPLC purification, and batch quality control — none of it cheap, and none of it something you can verify by eye.

Don't judge a vial by its cake. A fluffy, good-looking lyophilized powder reflects bulking agents and freeze-drying parameters — not purity. Insist on a batch-specific certificate of analysis.

How peptides are made — the full pipeline

Research areas

  • Aging biology
  • Mitochondrial dysfunction
  • Neurodegeneration

Research-area guides

Latest research

Recent clinical trials and publications mentioning Nicotinamide Adenine Dinucleotide, pulled automatically from ClinicalTrials.gov and PubMed and refreshed daily. Listings are unfiltered search results, not curated endorsements.

Frequently asked questions

What is NAD+?+

NAD+ (nicotinamide adenine dinucleotide) is an essential coenzyme central to energy metabolism, sirtuin activity, and DNA repair — a major focus of aging research.

Is NAD+ a peptide?+

No — it is a coenzyme (a dinucleotide), included in the catalog for its central role in mitochondrial and longevity research.

Why does NAD+ matter for aging?+

Cellular NAD+ declines with age, and the sirtuin and PARP enzymes that depend on it govern stress resistance and DNA repair, so restoring NAD+ is widely studied.

Is it approved?+

NAD+ is used as a research reagent and studied as an investigational therapeutic. This page is a research and educational reference.

Related peptides

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Ask the Agent about NAD+

Dosing protocols, mechanism, comparisons, and the latest trials — citation-backed answers grounded in PubMed, PubChem, and ClinicalTrials.gov.