The master coenzyme for cellular energy (ATP), DNA repair, and sirtuin longevity signaling — levels drop ~50% between ages 40 and 60. Injectable NAD+ delivers it directly into circulation for maximum effect.
| Provider | Type | Price | Review | Link |
|---|---|---|---|---|
| Defy Medical | Telehealth | ~$200/mo | Read review | Get Started → |
| MYRNK | Telehealth | $129/mo | Read review | Get Started → |
| PeterMD | Telehealth | $150/mo | Read review | Get Started → |
| MadeMed | Telehealth | $199/mo | Read review | Get Started → |
| Marek Health | Telehealth | $166/mo | Read review | Get Started → |
| Limitless Alt Med | Telehealth | $115–$275/mo | Read review | Get Started → |
| Shed | Telehealth | $149/mo | Read review | Get Started → |
| Tonik | Telehealth | $104/mo | Read review | Get Started → |
| EnhanceMD — Oral | Telehealth | $84/mo | Read review | Get Started → |
| EnhanceMD — Injectable | Telehealth | $169/mo | Read review | Get Started → |
| Eden Health — Injectable | Telehealth | $186/mo ($119 first month) | — | Get Started → |
| Eden Health — Nasal Spray | Telehealth | $127/mo ($112 first month) | — | Get Started → |
| Eden Health — Cream | Telehealth | $84/mo | — | Get Started → |
| NextGenPeps | Research | $74 / 500mg | — | Visit Site → |
Telehealth = physician-prescribed. Research = for research use only, no prescription required. Learn the difference →
NAD+ (Nicotinamide Adenine Dinucleotide) is a coenzyme present in every cell in the body, essential for over 500 enzymatic reactions. It is the critical electron carrier in the mitochondrial electron transport chain — meaning no NAD+, no ATP production. Beyond energy metabolism, NAD+ serves as a substrate for PARP enzymes (DNA repair) and sirtuins (SIRT1–SIRT7), which regulate inflammation, metabolism, and longevity signaling.
NAD+ levels decline dramatically with age — approximately 50% between ages 40 and 60 in most tissues. This decline is associated with reduced mitochondrial function, impaired DNA repair, increased inflammation, and metabolic deterioration. Restoring NAD+ levels has become a central focus of longevity medicine. While oral precursors (NMN, NR) show some efficacy, injectable NAD+ bypasses first-pass degradation and delivers the active coenzyme directly.
Most users report noticeable improvements in energy levels, mental clarity, and reduced fatigue within 1–2 weeks of subcutaneous injection protocols. Long-term benefits include improved metabolic markers, enhanced exercise capacity, and support for longevity pathways that are not easily measurable in short timeframes. Injectable NAD+ produces more immediate and pronounced effects than oral precursors at equivalent doses.
Use code 3LUIZH10 at NextGenPeps for a discount on research-grade injectable NAD+.