Bovine Sourced Filled by Weight Non-GMO Since 1972 NOW has been offering quality powdered vitamins, minerals and herbs that are ideal for making your own encapsulated supplements. Powdered supplements for home encapsulation require no fillers or binders, are lower in cost, and they can be measured or mixed to create specific blends and potencies. Filling your own capsules can save you up to 50% off the retail price of pre-packaged supplements. These extra small "3" Gelatin Capsules can hold 150-200 mg of most vitamin or mineral powders. This is the smallest empty capsule size available. We also supply "1", "0", "00" and "000" sizes as well as Veg Capsules in "0" and "00" sizes.