Filled by Weight Kosher Non GMO Project Verified Since 1972 NOW has been offering quality powered 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 singe "0" veg capsules can hold 400 - 600 mg of most vitamin or mineral powders. We also supply veg capsule in "00" as well as empty gelatin capsules in "1", "3". "0", "000" sizes. Below is a list of of the powders that we offer for filling empty capsules: Amino Acids Powders AAKG Amino 9 Essentials L-Arginine Branched Chain Aminos L-Carnitine L-Citrulline L-Glutamine Acetyl-L-Carnitine GABA Glycine L-Leucine L-Lysine L-Ornithine L-Theanine L-Tyrosine L-Tryptophan Herb Powders Maca Psyllium Husks Slippery Elm Acacia Fiber Glucomannan Silymarin CucurFresh Curcumin Mineral Powders Bone Meal Calcium Carbonate Calcium Citrate Coral Calcium Magnesium Bisglycinate Magnesium Citrate Calcium/Magnesium Vitamin C Powders Acerola Calcium Ascorbate Sodium Ascorbate Vitamin C Complex Magnesium Ascorbate Vitamin C Crystals Vitamin B Powders Inositol More Powders Acai CoQ10 Liver Powder MSM D-Mannose Joint Support Probiotic-10 50 Billion Sunflower Lecithin AHCC