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Thorne Research 5-Hydroxytryptophan 100mg

Thorne Research 5-Hydroxytryptophan 100mg
Our Price:  £56.45(Inc. 20% VAT)(£47.04 Exc. VAT)Earn 56 Loyalty Points


Code:  TSA503
Brand:  Thorne Research
Form (e.g. capsules):  Capsules

Thorne Research

Thorne 5-HTP

Health Supplement
A natural amino acid found in the body and the direct metabolic precursor of serotonin and melatonin which act as brain chemical messengers. 5-HTP is converted in the body from the amino acid tryptophan, unlike tryptophan there are no dietary sources.

Thorne Research 5-HTP is formulated with Vitamin B6 for optimal activity and this formulation can also be taken with food without competing with other amino acids.  

Brand Thorne Research
Size 90 vegetarian capsules
Recommended Dosage

Take 1 or 2 capsules three times  a day or as recommended by a health-care practitioner.


Two capsules contain:

  • Vitamin B6 (as Pyridoxal 5'-Phosphate) (6.8mg)
  • 5-Hydroxytryptophan (100mg)
Free From

This product does not contain wheat, gluten, corn, yeast, soy, egg, dairy products, or artificial colours, sweeteners, or flavours. This product also does not contain lactose, palmitic acid, or magnesium, calcium, or vegetable stearates.


This product is contraindicated in an individual with a history of hypersensitivity to any of its ingredients.


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


5-Hydroxytryptophan should be used with caution in an individual currently being treated with an SSRI, MAO inhibitor, or other antidepressant medication.

Other Ingredients

Ingredients: Bulking Agent: Microcrystalline Cellulose. Anti-caking Agents: Silicon   Dioxide, Leucine. Hypromellose (derived from cellulose) capsule. Vitamin B6 (as   Pyridoxal 5’-Phosphate), 5-Hydroxytryptophan.