Empty Gelatin Capsules for filling with any ingestible herbs - like ginseng, astragalus, valerian root, etc. Gel caps make convenient, tasteless, easy-to-take pills out of whatever medicinal herbs or powders you wish. The 00 size holds an average of 960 mg of powder (600 - 1400 depending on the density of your powder). The 0 size holds an average of 665 mg of powder (400 - 1000 depending on the density of your powder). This product is 0 size / 50pkg