Fill these capsules with any powdered herbs, food supplements, vitamins, oils, or your own custom formulas. This is an economical and convenient way to take strong tasting herbs and avoid table binders and fillers which are commonly added to store-bought herbs.
If you do fill them with oil, they must be used within the hour as the capsule will start to dissolve.
This size is about the length of a nickel. Each "0" capsule will hold 400 mg - 800 mg or so (5,000 mg = 1 teaspoon).