How to Use NAD+: Dosing, Routes, and Anti-Aging Protocol
Complete guide to NAD+ supplementation — IV vs. SubQ vs. oral routes, dosing (100–1000mg), timing, and how to stack with NMN or NR.
Overview
NAD+ (nicotinamide adenine dinucleotide) is a coenzyme essential for cellular energy production, DNA repair, and sirtuin activation. Levels decline with age, and supplementation has shown promise for energy, cognition, and longevity. Multiple administration routes exist with different bioavailability profiles.
What You Need
- NAD+ vial (injectable) or capsules (oral)
- Bacteriostatic water (for injectable)
- IV setup (for IV route — requires medical supervision)
- Insulin syringes (for SubQ route)
Step-by-Step Instructions
Choose your administration route
IV infusion: highest bioavailability, used in clinical settings (250–1000mg over 2–4 hours). SubQ injection: good bioavailability, self-administered (25–100mg/day). Oral (NMN/NR): lowest bioavailability but most convenient (250–1000mg/day).
Start with a low dose
Begin with 25–50mg SubQ or 250mg oral NMN/NR to assess tolerance. NAD+ can cause flushing, nausea, and fatigue at higher doses, especially with IV administration.
Increase gradually
Over 2–4 weeks, increase to your target dose: SubQ 50–100mg/day or oral NMN 500–1000mg/day. IV protocols typically start at 250mg and increase to 500–1000mg per session.
Time your dose in the morning
NAD+ is energizing — morning administration prevents sleep disruption. Take with or after breakfast to reduce GI side effects.
Cycle or maintain
Many users run IV NAD+ as a periodic 'reset' (monthly or quarterly) while maintaining daily oral NMN/NR supplementation. SubQ protocols typically run 4–8 weeks continuously.
Common Mistakes to Avoid
Starting IV NAD+ at full dose
Fix: IV NAD+ at high doses causes intense flushing, nausea, and chest pressure. Always start at 250mg and titrate slowly.
Taking NAD+ in the evening
Fix: NAD+ is stimulating and can disrupt sleep. Morning administration is strongly recommended.
Expecting immediate results
Fix: NAD+ benefits (energy, cognition, skin) typically emerge over 2–6 weeks of consistent use.
Frequently Asked Questions
Is oral NMN as effective as injectable NAD+?
NMN (nicotinamide mononucleotide) is an NAD+ precursor that converts to NAD+ in cells. It has good oral bioavailability and is the most practical form for most users. Injectable NAD+ produces higher peak plasma levels but the long-term outcomes may be similar.
What does NAD+ feel like?
Many users report increased energy, mental clarity, and improved mood within the first few weeks. IV NAD+ often produces a noticeable energy surge within hours of infusion.
Can NAD+ reverse aging?
NAD+ cannot reverse aging, but it supports cellular repair mechanisms (sirtuins, PARP) that decline with age. It is one of the most evidence-backed longevity interventions, though most human data is still emerging.
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