Niacin (Nicotinic Acid)
Niacin (Nicotinic Acid) is a tier 1 form of Niacin (Vitamin B3), used in 10,716 on-market products .
10,716
on-market products
tier 1
quality tier
n/a
elemental fraction
Why this tier: Fully converted to NAD/NADP for core vitamin function; additionally has documented pharmacologic lipid effects (LDL/TG lowering, HDL raising) at gram doses via the HCAR2/GPR109A receptor pathway, not shared by niacinamide.
Source: Knopp RH et al. 1998, Metabolism 47(9):1097-1104, PMID 9751239