21st Century Niacinamide 500 mg Prolonged Release Tablets, 110-Count

21st Century Niacinamide 500 mg Tablets Reviews Summary

Ratings Breakdown

Rated 4.5 by 4,133 people

Pros from Reviews

  • Good potency
  • No skin discomfort
  • Works well
  • Great value
  • Helps with sleep

Cons from Reviews

  • Contains calcium carbonate

Notable Features

Prolonged Release
Gluten-Free
Energy Metabolism
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