Empty capsules
Edible capsules can be filled with liquid or powder. The capsules are made of gelatin and dissolve when ingested.
Size
There are a number of standard sizes, which are used worldwide. The empty capsules are available in the following sizes:
Size 00: contents 0.92 mg
Size 0: contents 0.68 mg
Size 1: contents 0.48 mg
Size 2: contents 0.37 mg
Size 3: contents 0.25 mg
Size 4: contents 0.15 mg
Size 00 is the largest, and size 4 is the smallest capsule.