NAD+ is the cellular fuel your body uses to repair DNA, regulate metabolism, and resist oxidative stress. After 40, levels can drop ~50%.
PeakRx's NAD+ Precursor Complex pairs nicotinamide mononucleotide (NMN) with nicotinamide riboside (NR) — the two best-studied direct precursors — at the dose ranges used in human clinical trials. Once daily, with or without food.
NAD+ can't be absorbed orally — the molecule is too unstable to survive digestion. Your body builds NAD+ from precursor molecules instead.
Pairing both precursors gives your salvage pathway redundancy — if one route is bottlenecked (genetic variation in NMNAT or NRK1 is common), the other compensates. Trials with NR alone have shown 40-60% increases in blood NAD+ over 4-8 weeks at 250-500mg/day. Combining NMN brings additional upstream substrate.
Most NAD+ supplements give you one precursor or a microdose of several. Ours is built on three principles:
We don't add stimulants, "proprietary blends," or fillers that obscure dose.
Answer a few questions about your health history and treatment goals.
A licensed provider will review your information and create a personalized plan.
Your prescription is sent to the pharmacy and shipped directly to you.
Yes. As of 2026 NMN is sold as a dietary supplement in the US. The FDA reviewed NMN under NDIN status in 2022 and has not removed it from the supplement market. PeakRx will pause sales immediately if regulatory posture changes.
Most patients report subjective changes in energy and sleep quality between weeks 3 and 6. Blood NAD+ measurements typically rise within the first 4 weeks. NAD+ is not a stimulant — there is no acute "feeling" within hours of taking it.
NAD+ precursors are generally well tolerated alongside common supplements (vitamin D, magnesium, omega-3) and most prescription medications. If you take chemotherapy, immunosuppressants, or are pregnant or breastfeeding, do not start without your physician's approval.
Three things. (1) Dose — ours is 500mg total active precursors, most Amazon products are 125-250mg. (2) Pharmacy quality — we manufacture in a NABP-accredited compounding pharmacy with COA on every lot. (3) Clinician oversight — your intake is reviewed by a licensed physician before dispensing.
No evidence currently supports cycling. The body downregulates absorption modestly over time but does not appear to develop tolerance. We re-evaluate every 6 months as new long-term safety data publishes.
Complete your intake in just a few minutes. A licensed provider will review your information.
Start intake for NAD+ Precursor Complex