The best replacement for niacinamide is niacin.

The best alternatives to niacinamide are rated as following:
★★★★★  niacin
★★★★  nicotinic acid
★★★  nicotinamide
★★  inositol hexanicotinate
★  hydroquinone
★  nadh
★  inositol hexaniacinate
★  no flush niacin
★  vitamin b3
  inositol
  niaspan
  arbutin
  nahd
  niacinamide

Your alternative for niacinamide is not listed? Suggest!
Speaking about niacinamide, one probably shouldn't forget about b6.

Other search terms related to niacinamide and their ratings are:
★★★★★ b6
You have in mind a companion for niacinamide and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of niacinamide in all years. Click on graph for more.
niacinamide
niacin
nicotinic acid