There are several different types of kratom on the market: leaves, powder and extract. Dried leaves are the most common form of kratom. Kratom powder usually consists of powdered leaves and is a bit stronger. Extract is a sticky substance that is left after lengthy boiling and straining of leaves and is stronger than plain leaves.
The quality of the leaves is the most important factor in the potency of kratom. On the internet you will find what is called ‘commercial leaves’, meaning that these are a blend of leaves of different quality. These are quite suitable for making your own extract. You will also find selected, high quality leaves or powder. These are usually more expensive, but you will need less.