SAMe (S Adenosylmethionine)SAMe (S adenosylmethionine) is present in all living cells. It functions as a donor of methyl groups for healthy methylation in over 100 different reactions in the body. It also contributes to the production, activation and or metabolism of hormones, neurotransmitters, nucleic acids, phospholipids and proteins. This SAMe (S adenosylmethionine) supplement promotes positive mood, liver health and joint comfort. It also encourages healthy cell growth.