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Over the counter Published: limited Extensive real-world use

NMN: dosing, timing and what to expect

A direct precursor to NAD+, one step closer than nicotinamide riboside. Taken to raise cellular NAD+, which declines substantially with age.

Also known as Nicotinamide Mononucleotide, beta-NMN

Educational research reference Longevity & Cellular
Quick reference. Everything you need to run NMN — dosing, frequency, reconstitution math for the vial sizes people actually buy, and what it stacks with. For anything specific to your situation, ask the Guru.

NMN quick start

Route
Oral, or sublingual
Typical dose
250–1,000 mg daily
Frequency
Once daily, usually morning
Half-life
Short — converted to NAD+ within about 30 minutes of absorption.
Cycle
Taken continuously by most people.
These are the numbers people actually run, drawn from the published record and from what the community has settled on over time. Educational reference, not medical advice — a starting point to work from, and one you can adjust as you learn how you respond.

How to run it

How often
Once daily, usually morning
Cycle length
Taken continuously by most people.
Half-life
Short — converted to NAD+ within about 30 minutes of absorption.
Route
Oral, or sublingual
Consistency matters more than perfect timing. Pick a slot in your day you will actually keep, and let DoseIQ handle the rest.

What people actually run

The most widely taken longevity supplement in this space by a wide margin. Almost always oral, despite injectable versions existing.

This is accumulated community practice — years of real-world use across a large number of people, converging on numbers that work. It is not a controlled trial, and for most compounds here no such trial exists or is ever likely to. That makes this the most reliable dosing signal available, and it is a good deal better than guessing.

What to expect

Most people tolerate NMN well. Here is what is worth knowing going in, so nothing catches you by surprise.

Well tolerated at normal doses, with human trials showing good safety at up to 1,250 mg daily. The honest uncertainty is whether raising NAD+ produces the outcomes people want it for — that part is far less settled than the biochemistry. Sublingual is popular on the theory of better absorption, though the evidence for that specifically is thin. Purity varies enormously between suppliers; third-party testing matters here.

Preparing it

NMN does not need reconstituting — it comes ready to use. Capsules or powder. Nothing to reconstitute.
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This page is an educational research reference and is not medical advice. Dose figures reflect the published record and what the community has converged on — starting points to weigh, not instructions. Consult a qualified healthcare provider before starting any protocol.