Quick view NOW Foods 5-HTP Neurotransmitter Support 100mg - 60 Vege Capsules MSRP: $29.90 Now: $24.90 Was: NOW Foods 5-HTP 100mg Neurotransmitter Support contains 5-HTP, the intermediate metabolite between the amino acid L-tryptophan and serotonin. It is extracted from the seed of an African plant (griffonia simplicifolia). This dietary... MSRP: $29.90 Now: $24.90 Was: Add to Cart Quick view Add to Cart