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Allergy Research 5-L-Hydroxytryptophan 150's
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Allergy Research 5-L-Hydroxytryptophan 150's

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L-Tryptophan is an essential amino acid that is converted into L-5-Hydroxytryptophan (5-HTP) in the body. 5-HTP is then converted into serotonin and melatonin. Normal serotonin levels have been associated with normal moods, appropriate appetite and weight maintenance, and proper sleep. ARG 5-HTP is derived from a plant source, and is carefully tested to ensure its purity and to guarantee the absence of contaminants.

Ingredients: L-Leucine. Capsule shell: Hydroxypropyl Methylcellulose.


As a food supplement, 1 capsule per day.

5-HTP should not be used concurrently with any antidepressant. 5-HTP should be avoided by those with elevated cardiovascular risk, coronary artery disease, carcinoid tumor, stroke or arterial spasm, and by pregnant women and nursing mothers. Large doses of 5-HTP can trigger excess serotonin formation in peripheral tissues, with possible adverse reactions. Use only as directed.

In theory, L-tyrosine, adenosyl-L-methionine, tryptophan, vitamin B6, chromium, melatonin, niacin, SAMe, St. John's wort, herbs and supplements with monoamine oxidase inhibitor (MAOI) activity, and magnesium may increase the effects or side effects associated with 5-HTP.

Turmeric and Honey endeavours to ensure that your order is dispatched within 24 hours from order placement (excludes weekends – week days only).

Please allow between 1 to 5 working days for delivery in the UK and up to 7 working days in Europe. Deliveries are subject to Royal Mail and courier operations. Pricing is based on postage weight, speed and quality of the courier service.

For more delivery and returns info please see our delivery details and returns policy pages.