NAD+ guide

At a glance

What the research says

The cited pilot study gave NAD+ by intravenous infusion over six hours and sampled plasma and urine during and after the infusion. Its stated purpose was to document what happens to directly infused NAD+ in people, because earlier human work had concentrated on precursor molecules such as nicotinamide riboside.[2]

The authors report that plasma NAD+ and its measured metabolites did not change for roughly the first two hours, which they interpret as rapid and complete removal of infused NAD+ from plasma at that infusion rate. Urinary NAD+ and methylnicotinamide rose by the sixth hour. The metabolite pattern is described as consistent with enzymatic breakdown of the dinucleotide.[2]

The study calculates no elimination half-life, reports no subcutaneous absorption and gives no time to peak. The library's 0.08 hour half-life, 40% absorption fraction and half-hour peak time are therefore authored estimates chosen to be consistent with rapid disappearance, not values copied from the paper. The route the app models, subcutaneous, differs from the route the paper measured.[2][1]

Cited amounts

The library records 500 mg as a supplier catalog package amount for a powder vial. That number is the container total in one vendor listing. It is not an amount taken from the infusion study, which reported its exposure as an infusion rate rather than a vial quantity.[1][5]

Half-life and timing

A 0.08 hour interval is just under five minutes, so five halvings span about 24 minutes on this axis. The bars therefore compress almost the whole modeled decline into the first half hour. That speed reflects the observation that infused NAD+ disappeared from plasma quickly; it is not a measured clearance constant. Because the cited work reported metabolites rising later in urine, a fast plasma curve also says nothing about how long downstream products persist.[1][4]

Reconstitution

Dividing the listed 500 mg by a hypothetical 2 mL final volume gives 250 mg/mL, and 0.1 mL of that solution would hold 25 mg. A 5 mL final volume would give 100 mg/mL instead. These figures show how the volume choice moves concentration and syringe units; they do not describe solubility limits, a preparation method or an amount anyone studied. The infusion paper does not use vials of this size.[5]

Tracking it in PinPoint

Frequently asked questions

Does the NAD+ infusion study give a subcutaneous half-life?

No. It followed a six-hour intravenous infusion and reported that infused NAD+ left plasma rapidly, without calculating a half-life. The library's subcutaneous inputs are tracking estimates written to match that observation, and the guide labels them that way.[1][2]

Why is the NAD+ half-life shown in fractions of an hour?

The library uses 0.08 hours as an estimate consistent with the study's report of rapid removal from plasma. The figure is small, so the decay chart collapses into minutes. It remains an authored input rather than a published human half-life.[1][4]

What does a NAD+ reconstitution calculator compute from a 500 mg vial?

It divides the vial total by the liquid volume you enter and converts a chosen amount into millilitres and U-100 syringe units. The arithmetic is the same as for any powder vial. It does not choose the amount or account for how NAD+ behaves after injection.[1][4]

Can a peptide tracker app record NAD+?

PinPoint's compound library includes NAD+. The app description covers logging compound, dose, site, and pain level, as well as viewing modeled levels between recorded doses. For NAD+ the curve inputs are authored tracking estimates, not published values, and the curve does not account for individual variation. The tracker records the schedule entered by its user; it does not choose a dose or recommend a schedule change.[1][3]

Sources

Facts and reference links were retrieved from the PinPoint application library on 5 October 2026. Links below preserve the library's citations; a catalog source supports a package amount only. Source references carried from the library have not all been independently reverified. Arithmetic examples are identified separately from clinical evidence.

1. PinPoint compound library, NAD+Snapshot of the application library; its references and uncertainty are retained below.Retrieved 2026-10-05 · library
2. Human infusion study PMC6751327Published 2019 in a neuroscience-of-aging journal (PubMed 31572171). Supports the infusion narrative only; the study supplied no numeric pharmacokinetic inputs. Checked against the abstract on 5 October 2026.Retrieved 2026-10-05 · library-reference
3. PinPoint App Store descriptionFeature wording from the approved application description, not pricing.Retrieved 2026-10-05 · app-description
4. Unit conversion and exponential-decay arithmeticC = amount / volume; remaining fraction = 2^(-elapsed / half-life). These are illustrations, not measurements.Retrieved 2026-10-05 · arithmetic
5. Supplier catalog package referenceVendor document. Package amount only; not a clinical amount or endorsement.Retrieved 2026-10-05 · supplier