NAD+
NAD+ (Injectable) · NAD-Plus · NAD-Plus-Injectable
Nicotinamide adenine dinucleotide (NAD+) is a fundamental coenzyme present in every living cell, essential for over 500 enzymatic reactions including energy metabolism, DNA repair, gene expression regulation, and cellular signaling. NAD+ levels decline approximately 50% between ages 40-60, contributing to mitochondrial dysfunction, impaired DNA repair, and accelerated aging. Injectable NAD+ bypasses the oral bioavailability limitations of precursors (NMN, NR) to directly restore cellular NAD+ pools. Administration is via intramuscular (IM) injection due to the acidic pH (~3-4) that causes significant burning with subcutaneous delivery. NAD+ is a cornerstone of longevity and cellular health protocols.
IM or IV administration. Can cause flushing. Slower infusion reduces side effects. Pin alone. Not compatible with peptides.
Start here. Every protocol below is ordered lowest-first. Begin at the smallest effective dose, hold about a week to assess tolerance, and step up only if needed.
How it works
NAD+ serves as a critical coenzyme in three major biological systems. In energy metabolism, it accepts electrons as NAD+ and donates them as NADH in glycolysis, the TCA cycle, and oxidative phosphorylation, directly fueling ATP production. As a substrate for sirtuins (SIRT1-7), NAD+ enables epigenetic regulation through histone deacetylation, controlling gene expression patterns associated with longevity, stress resistance, and metabolic health. As a substrate for PARPs (poly-ADP-ribose polymerases), NAD+ fuels DNA damage detection and repair. CD38, an NAD+-consuming enzyme that increases with age, is a major driver of age-related NAD+ decline. Injectable NAD+ directly replenishes cellular pools without relying on the rate-limited salvage pathway (NAMPT) that oral precursors depend on.
What to expect
Days 1-7: Injection discomfort is the main experience. Some users report subtle energy improvement. Cellular NAD+ levels begin to restore.
Weeks 2-4: Energy and recovery improvements become noticeable. Mental clarity improves. Exercise tolerance increases.
Weeks 4-12: Cumulative cellular benefits. Sirtuin activation and DNA repair effects compound. Best assessed via intracellular NAD+ testing if available.
Evidence
Claims we could not support
No abstract we checked supports these for this molecule at this route. That is not the same as saying they are false — it marks where the evidence is missing.
Dose/route: 50-100 mg IM; IM injection (not SubQ due to acidic pH causing burning); 2-3 times weekly or daily. No checked live PubMed abstract verified this exact displayed dose, route, and frequency for the same molecule/formulation and relevant population.
Mechanism: NAD+ serves as a critical coenzyme in three major biological systems. In energy metabolism, it accepts electrons as NAD+ and donates them as NADH in glycolysis, the TCA cycle, and oxidative phosphorylation, directly fueling ATP production. As a substrate for sirtuins (SIRT1-7), NAD+ enables epigenetic regulation through histone deacetylation, controlling gene expression patterns associated with longevity, stress resistance, and metabolic health. As a substrate for PARPs (poly-ADP-ribose polymerases), NAD+ fuels DNA damage detection and repair. CD38, an NAD+-consuming enzyme that increases with age, is a major driver of age-related NAD+ decline. Injectable NAD+ directly replenishes cellular pools without relying on the rate-limited salvage pathway (NAMPT) that oral precursors depend on.. No checked live PubMed abstract provided an exact-molecule/formulation sentence supporting this source-JSON mechanism claim.
Primary safety claim: No primary safety text present in source JSON. No checked live PubMed abstract directly verified this source-JSON safety claim at the displayed formulation, route, and regimen.
The honest take
Anti-aging cornerstone
NAD+ decline is a recognized hallmark of aging. Restoration improves multiple aging biomarkers in animal studies. David Sinclair's research popularized NAD+ in longevity science. Human longevity outcomes not yet proven.
BR+ NAD protocol uses high-dose IV NAD+ for addiction treatment. Published case series show benefit. Not FDA-approved for addiction. Mechanism may involve neurotransmitter pathway restoration.
Injectable NAD+ bypasses NAMPT rate-limiting step that oral NMN/NR depend on. Theoretically more efficient but IM bioavailability vs oral precursor bioavailability comparison data is limited.
Interactions & stacking
Two different questions: what is documented about running these together, and what is documented about drawing them into the same syringe. A good pharmacological partner can still have to be pinned separately.
Documented together
Check any specific pair in the Stack & Interaction Checker, which answers both questions separately. Absence of a documented conflict is not evidence of safety.
Side effects & safety
Commonly reported
- Burning/pain at injection site (acidic pH)
- Mild nausea
- Warmth or flushing
- Headache
Less common & notes
- Chest tightness or shortness of breath with IV infusions (rate-dependent, not typical with IM).
- Muscle cramping at injection site.
- Rare anxiety or agitation.
- Inject slowly and start with lower doses.
Pharmacokinetics
IM
Cellular NAD+ pool elevation persists beyond plasma clearance
Intracellular consumption by sirtuins, PARPs, and CD38; metabolites excreted renally
Storage. Oxidation sensitive. Protect from light and air exposure. Refrigerate at 2-8C after reconstitution. Stable for 14-28 days. Minimize repeated vial punctures and air exposure. Solution should be clear; discard if discolored.
Regulatory status
NAD+ is available as a compounding ingredient and supplement precursor. Not FDA-approved as an injectable drug. IV NAD+ clinics operate under physician oversight. No WADA prohibition. Available through compounding pharmacies.
Put it to work
Calculate, log & track
Open NAD+ straight into OnePin with your vial and dose pre-filled, then let it handle the syringe math and remind you before the vial runs out.
Open NAD+ in the app →Go deeper
The guide & community
The complete NAD+ walkthrough, real protocol discussion and coaching live inside the BlessUp community on Skool.
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