5HTP is a natural amino acid found in the body. Serotone also contains B vitamins & zinc. Available in 50mg & 100mg size capsules. Not advisable if pregnant or taking fenfluramine. Care should also be taken if being prescribed SSRIs. Suggested intake 50mg capsule Take 12 capsules at the end of the day with a carbohydrate snack.100mg capsule Take 1 capsule at the end of the day with a carbohydrate snack. One 50mg capsule typically provides 50mg 5HTP 5mg Vitamin B6 2.5mg Zinc 25g