Colenema's are a natural form of colonic irrigation's that send water coursing all the way through the entire length of the colon including the transverse and ascending portions. The water can be mixed with garlic, lemon juice, Bentonite clay or coffee; each stimulating and producing a different cleansing effect on the colon and adjundant organs. Colenema'swork entirely by gravity, not pumps and is completely safe to use alone. The term "Colenema", in fact refers to a technique, that is a derivative of the "Colenema Board".

"Colema Boards" is a trademark name owned by Colema of California. The boards made for home use are actually called Colenemas. Colema's laminated particle board was the original colenema board on the market. They no longer produce these boards, but they can often be purchased second hand.