Route & Bioavailability Transparency
Medium
Whether the provider is honest about how route of administration affects absorption — IV, subcutaneous, and especially oral bioavailability.
Why it matters
Oral NAD+ precursors are far less bioavailable than injectables, and that difference is often glossed over. Route honesty tells you whether you are paying for something your body can actually use.
How we assess it
We check the honesty of the route-and-absorption story.
- IV / subcutaneous / oral options offered
- Honest treatment of oral bioavailability limits
Source types: The provider’s route and product descriptions.
How we score it
Straight talk about route and absorption scores well; overselling low-bioavailability oral products scores lower.
- Importance
- Medium
Medium — a moderate weight within NAD+.
- 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.