5-Hydroxytryptophan (5-HTP) is a naturally occurring amino acid, found as an intermediate metabolite in the biosynthesis of serotonin (5-hydroxytryptamine) from the essential amino acid L-tryptophan1. It is produced commercially from the beans of an African plant. Both L-tryptophan and 5-HTP help raise serotonin levels in the brain, which may have a positive effect on sleep, mood, anxiety, aggression, appetite control, temperature, sexual behavior and pain sensation5. 5-HTP is not commonly found in food, but the amino acid L-tryptophan can be found in such foods as turkey, chicken, milk, potato, turnips and collard greens.
Serotonin is widely found in nature. In plants it can be found in edible fruits, vegetables and nuts. In animals, its present in both invertebrates and vertebrates; localized in GI tissue lining, serotogenic neurons of the brain, the pineal gland (located near the center of the brain and associated with making the antioxidant/sleep hormone melatonin from serotonin) and in blood platelets.
Serotonin is involved in a variety of physiological processes, including smooth muscle contraction, blood pressure regulation, and both peripheral and central nervous system neurotransmission. In the central nervous system, it acts as a neurotransmitter5. It is synthesized from tryptophan in the brain, spinal cord, GI tract, bronchi, thyroid, pancreas and thymus. The serotonin circulating in our blood vessels does not normally enter the brain, as it cannot cross an intact blood-brain barrier, so must be made in the brain from 5-HTP or tryptophan.
NOW Foods' 5-HTP is taken orally, so it's well absorbed and crosses the blood-brain barrier, which provides a natural way to maintain a healthy level of serotonin in the body.
120 VCaps (100 mg per capsule)
Serving Size: 1 capsule
Other Ingredients: Rice flour, cellulose (capsule).
Suggested Use: As a dietary supplement, take 1 Vcap daily, preferably on an empty stomach at bedtime.
Contains no sugar, salt, yeast, wheat, gluten, corn, soy, milk, egg, shellfish, or preservatives.
If you are ordering from outside the United States, please consult your country's customs agency to find out whether vitamins may be imported into your country. If ordering from a European country, unfortunately we are unable to ship these out to you due to past problems with customs.