1825
Table of Contents > Health Dictionary > L-tryptophan

L-tryptophan

The levorotatory form of tryptophan that is a precursor of serotonin and was formerly used in some health food preparations in the belief that it promoted sleep and relieved depression.
Healthy Living Marketplace
Eden Foods
Olbas
Wakunaga of America
Nutribiotic
Wakunaga of America
Almased