Introducing Source Naturals L-Tryptophan - the ultimate supplement for relaxation, restful sleep, and positive mood. Made with 500mg of the essential amino acid L-tryptophan, this product plays a crucial role in the synthesis of melatonin and serotonin, hormones that regulate mood, stress response, and sleep/wake cycles. But that's not all - L-Tryptophan also supports immune functions by serving as a precursor to kynurenines, which regulate immunity. And if that wasn't enough, it also converts to niacin in the body, supporting circulation, a healthy nervous system, and the metabolism of food. Plus, it aids in the production of hydrochloric acid for the digestive system. Rest assured, Source Naturals L-Tryptophan is of the highest quality, regularly tested to meet the strictest standards. Experience the power of L-tryptophan today and

Iron (naturally occurring), L-Tryptophan, Gelatin (capsule), silica, magnesium stearate, dibasic calcium phosphate, and microcrystalline cellulose.

Refer to the product packaging label for ingredient updates.

UK, Europe & Rest of the World Shipping Details:
Same day dispatch for orders placed by 2pm (Orders after 2pm dispatched next working day).

Free shipping on orders over £45 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 14 days in the same original and unopened packaging.

Take 1 capsule three times a day between meals, ideally with fruit juice. For restful sleep, take 3 capsules before bedtime. As a dietary supplement\, take 1 tablet daily\, preferably with meals\, or as directed by your health care practitioner. Consider taking this product in combination with NOW Thyroid Energy\, L-Tyrosine and Organic Virgin Coconut Oil.

These tablets are smaller (and easier to swallow) than most Kelp tablets\, as they contain less filler.

Please consult the product packaging for accurate instructions on how to use the product.