California Gold Nutrition® NMN Capsules175 mg β-Nicotinamide Mononucleotide Per ServingGRAS-affirmed 98% Pure NMNConvenient Veggie CapsulesSuitable for VegetariansFormulated Without: Gluten GMOs or SoyProduced in a 3rd Party Audited cGMP Registered (Certified) Facility100% Gold GuaranteeNMN (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