Ranking factor

Efficacy Honesty

High

How candidly the provider represents the evidence for NAD+ — acknowledging that the human evidence is weak rather than promising anti-aging outcomes.

Why it matters

NAD+ is sold on big longevity claims that the human science does not yet support. A provider willing to say so is telling you the truth; one that guarantees results is selling hope.

How we assess it

We read how the provider frames what NAD+ can and cannot do.

Candor about the limited human evidence
Absence of overstated anti-aging or outcome guarantees

Source types: The provider’s efficacy claims and marketing language.

How we score it

Honest framing of weak evidence scores high. Overstated efficacy and outcome guarantees are the red flag and pull the subscore down.

Importance: High
High — a heavily weighted tier within NAD+, because honest efficacy framing is the distinctive integrity axis of the anti-aging space.
Scope: Anti-Aging / NAD+ overlay

What this tier is worth

Tiers carry fixed weights: Critical 5, High 3, Medium 2, Supporting 1. A score is the weighted mean of the factors we could establish, so you can recompute any of ours by hand — the methodology page works one through end to end.

Not medical advice

This factor rates how openly a provider discloses its process — not whether a treatment is right for you. That decision belongs with a licensed clinician who knows your history. Nothing here is medical advice.

Scope: Anti-Aging / NAD+ overlay

How this shows up in real reviews

Cited evidence we captured on this factor in live provider reviews.

Gala Health
Unusually honest for this category, and in Gala's own words. Its longevity page states outright that there is no clinical trial for this compound bundle to cite, and asks to be judged on the speed of provider review instead. The NAD+ page describes the age-related decline as “one of the more consistent findings in longevity science” and says supplementation is “intended to support” the processes that decline with it — intent, not effect. The decline curve is labelled illustrative. No outcome percentage, no reversal claim and no anti-ageing promise appears on the page.

All ranking factors

Why it matters

How we assess it

How we score it

How this shows up in real reviews

More Anti-Aging / NAD+ factors