We recommend these packets as the starting point for detoxification programs, for anyone who needs regular detoxification support, or those who want extra help before such things as dental amalgam removal or heavy metal chelation. This product helps to support liver function. It also is a source of methionine - an essential amino acid, glycine - a non-essential amino acid, leucine - an essential amino acid, and vitamin A, to help maintain eyesight, skin, membranes and immune function.