Deciding whether to use the capsules or the sachets depends on which area of the digestive tract you wish to target.
The Medi PLUS sachets are specifically targeted for the mouth, throat and stomach because they start working straight away once in the mouth. They will still work in the small intestine and colon, however they will have already absorbed toxins before they reach this area of the digestive tract.
The MEDI PURE capsules are enteric coated and are not interfered by stomach acid. This allows the capsules to by-pass the stomach and work directly in the intestines and colon (lower gi).
Both the sachets and the capsules can be taken with each other, at the same time, to target the entire digestive tract.