5-HTP (5-hydroxytryptophan) is a chemical by-product of the protein building block L-tryptophan. It is also produced commercially from the seeds of an African plant known as Griffonia simplicifolia. 5-HTP works in the brain and central nervous system by increasing the production of the chemical serotonin. Serotonin can affect sleep, appetite, temperature, sexual behaviour and pain sensation. Our 5HTP capsules are made from 99% Griffonia Seed Extract and contain vitamin B6 & vitamin B3. HPMC capsules shells are used making these amazing capsules vegan & vegetarian friendly. Each Capsule Contains 100mg of goodness.