California Gold Nutrition NMN Capsules Pharmaceutical-Grade and Enzymatically Produced — Never Fermented 175 mg β-Nicotinamide Mononucleotide Per Serving GRAS-affirmed 98% Pure NMN Convenient, Veggie Capsules Suitable for Vegetarians Formulated Without: Gluten, GMOs, or Soy Produced in a 3rd Party Audited cGMP Registered (Certified) Facility 100% Gold Guarantee NMN (β-Nicotinamide Mononucleotide) is a nucleotide that is a direct precursor to NAD+ (Nicotinamide Adenine Dinucleotide). As levels of NAD+ naturally decline with aging, adding a precursor such as NMN has been shown to increase endogenous NAD+ levels. California Gold Nutrition NMN Capsules contain β-Nicotinamide Mononucleotide in a convenient veggie capsule supplement. Simply supplement as directed to help increase your NAD+ levels. iTested Verified