Everything DoseRank tracks on the vitamin b3 (niacin) shelf — NMN and NAD+. The category itself is never ranked: 357 products get scored the moment you say what you want them to do.
How to read the scores
This legend covers the scores on this page — for data sources, scoring weights, and limits, read the full methodology →
Answer a few questions about your goals, habits, stack, and budget. Then, DoseRank will find the products that best match your needs based on your answers. It's free and only takes 60 seconds! No account is required.
A saved, shareable breakdown: your matched products, dose math, interaction flags to discuss with a clinician, and a price-tracked stack you can revisit.
Questions
Each product gets a composite score blending clinical strength, evidence, dose fit, trust and value — computed for the goal you picked, across this category's products. The #1 on the DoseRank tab has the highest composite; the other tabs re-rank the same products by Value, Trust, or Popularity. Placement is never paid.
Start with a goal, not a brand
Browsing vitamin b3 (niacin) supplements without a goal makes no sense — different products do different jobs, and “best” flips depending on which job you're hiring for. These are the 45 health outcomes that matter for this category. Pick yours, and the full evidence-ranked shelf loads for that goal alone.
Energy or vitalitySubjective sense of energy, drive, or liveliness.141 rankedLimited
Niacin statusBiochemical sufficiency of vitamin B3.168 rankedStrong
Aerobic capacity (VO2 max)Maximum oxygen utilization during exercise.102 rankedModerate-strong
Insulin sensitivityEfficiency of tissue response to insulin.159 rankedStrong
Arterial stiffnessReduced elasticity of arteries associated with cardiovascular risk.148 rankedModerate-strong
Precancerous lesion progressionWorsening or advancement of premalignant lesions.52 rankedStrong
Allergic rhinitis symptomsNasal and eye symptoms related to seasonal or environmental allergy.27 rankedModerate-strong
Sleep qualityOverall restfulness and perceived quality of sleep.124 rankedModerate-strong
HDL cholesterolHigh-density lipoprotein cholesterol; higher is often preferred.72 rankedStrong
MalabsorptionImpaired absorption of nutrients from the gut.31 rankedStrong
Cancer incidenceOccurrence of new cancer diagnoses.16 rankedStrong
Vascular functionOverall health and reactivity of the circulatory system.43 rankedModerate-strong
TriglyceridesCirculating triglyceride concentration.80 rankedStrong
Skin barrier functionProtective integrity of the outer skin barrier.59 rankedModerate-strong
Acne severityExtent or intensity of acne lesions.62 rankedModerate-strongNothing is ranked yet — the shelf stays locked until you pick a goal.
No goal, no ranking.
A “best vitamin b3 (niacin) supplement” list without a goal would be marketing, not evidence. Pick what you want to improve and DoseRank scores all 357 products against that goal's trials.