商品描述
Double StrengthNeurotransmitter SupportSupports a Positive MoodNon-GMOA Dietary SupplementVegetarian/VeganKosherAmino AcidsFamily Owned Since 1968GMP Quality Assured5-HTP, the intermediate metabolite between the amino acid tryptophan and serotonin, is extracted from the seed of an African plant (Griffonia simplicifolia).Now® Double Strength 5-HTP has twice the 5-HTP (200 mg per capsule) as in our regular strength product (100 mg per capsule).