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Thorne Research, 5-Hydroxy-Tryptophan - 90 Veggie Caps

  • $34.00
  • $32.00

enhances serotonin production*

  • increases serotonin levels for sleep enhancement, decreased sugar cravings, and better stress management*
  • can be taken with meals without competing with other amino acids
  • includes vitamin B6 for optimal activity

5-Hydroxytryptophan (5-HTP) is the intermediate metabolite produced when the body initiates the process of converting the essential amino acid L-tryptophan to serotonin. Serotonin levels in the body are associated with the regulation of sleep, mood, aggression, appetite, temperature, sexual behavior, and pain sensation.*

Supplementing with 5-HTP to facilitate serotonin production is preferable to supplementing with L-tryptophan because, unlike L-tryptophan, 5-HTP cannot be shunted into niacin or protein production.* Supplementation with 5-HTP bypasses the conversion of L-tryptophan into 5-HTP by the enzyme tryptophan hydroxylase, the rate-limiting step in the synthesis of serotonin and a step that can be inhibited by a number of factors, including stress, insulin resistance, increasing age, and deficiencies of vitamin C, folate, and iron.

5-HTP is well absorbed when taken orally, with about 70 percent ending up in the bloodstream.*

Intestinal absorption of 5-HTP does not require the presence of a transport molecule and is not affected by the presence of other amino acids; therefore, it may be taken with meals without reducing its effectiveness.* 5-HTP easily crosses the blood-brain barrier and effectively increases central nervous system (CNS) synthesis of serotonin.*

5-HTP has been shown to have a beneficial impact on mood, discomfort associated with fatigue, sleep, and carbohydrate craving.* Numerous studies of individuals with negative mood status have shown significant positive response with 50-300 mg of 5-HTP daily.*

To further facilitate serotonin production, Thorne Research's 5-HTP formula contains pyridoxal 5'-phosphate, the active form of vitamin B6 and the necessary cofactor for the conversion of 5-HTP to serotonin.* 5-HTP is commercially produced by extraction from the seeds of the African plant, Griffonia simplicifolia.

Suggested Use Take 1-2 capsules three times daily or as recommended by your health-care practitioner.

Supplement Facts
Serving Size: Two Capsules
Servings Per Container: 45
 Two Capsules Contain:% DV
Vitamin B6 (as Pyridoxal 5' -Phosphate)6.8 mg340%
5-Hydroxytryptophan100 mg*
*Daily Value (DV) not established.

Other Ingredients                                        

Microcrystalline cellulose, hypromellose (derived from cellulose) capsule, leucine, silicon dioxide.

Warnings                                        

Tamper Evident: Use only if bottle is sealed.

If pregnant, nursing, or trying to conceive, consult your health-care practitioner before using this product.

Store tightly sealed in a cool, dry place.

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