These Empty Gelatin Capsules are the best quality available. They close easily and snap tight. They have the lowest incidence of dents of all the other gel caps available on the market today. They are certified BSE Free, which means they are completely free of mad cow disease. 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. The easiest way to fill these capsules is with the Cap-M-Quik filling machine (sold separately). If you're not familiar with the Cap-M-Quik it's easy to turn powders into easy to swallow capsules. This easy to use machine helps you make 50 capsules in about 15 minutes.