Directions: Adults take 1-3 capsules once daily. 

Each capsule contains:
Nicotinamide Riboside (nicotinamide riboside chloride)................263 mg
(provided by 300 mg of Nicotinamide riboside chloride)

Also contains non-medicinal ingredients: Microcrystalline Cellulose, Hypromellose (Vegetarian Capsule), Vegetable Magnesium Stearate