Natrol 5-HTP is a dietary supplement that backs mood balance and restful sleep by aiding the body's production of serotonin, the key mood-regulating chemical. Manufactured to rigorous quality standards, this double-strength formula is intended for daily mood support. If you want a straightforward, dependable way to feel more balanced, it's a solid pick.

Available Sizes & Variants:

30 capsules - convenient daily dose.

Benefits & Features:

• Supports mood balance and sleep for calmer days.
• Helps regulate appetite by supporting serotonin, which helps you feel fuller longer between meals.
• Delivers a consistent 100 mg dose per capsule for reliable daily use.
• Double-strength formula keeps daily mood support simple.
• By supporting serotonin production, 5-HTP may help with sleep onset and overall sense of wellbeing, which can translate to more relaxed evenings and easier, more restful nights.

Natrol has built a long standing reputation for straightforward, reliable supplements. This 5-HTP capsule contains the active ingredient 5-HTP, a direct precursor to serotonin, which helps regulate mood, appetite and sleep. The product is made in facilities that follow strict quality standards, with a simple ingredient list designed for easy digestion. For daily wellbeing routines, it’s a practical addition in the vitamin shop, sitting well next to a vitamin d supplement or probiotics for a balanced, easy to use wellness line.

Microcrystalline Cellulose, Gelatin, Magnesium Stearate, Silicon Dioxide, 5-HTP (5-Hydroxytryptophan) (from Griffonia simplicifolia) (seed) 100mg.

• GTIN: 47469040932
• Manufacturer: Natrol
• Categories: 5-HTP SupplementsNatrol Supplements & VitaminsSleep & Relaxation SupplementsSupplements for Anxiety
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 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 30 days in the same original and unopened packaging. Subject to T&C's.

Adults should take 1 capsule of Natrol 5-HTP, up to two times daily, with a meal. Store in a cool, dry place. WARNING: Consult a healthcare professional before using this product if you are pregnant, nursing, under the age of 18, or are taking medication or have a medical condition; including drugs for depression, migraines, Parkinson’s disease or psychiatric disorders. Do not use with other supplements containing L-Tryptophan or 5-HTP. If adverse reactions occur, discontinue use. KEEP OUT OF REACH OF CHILDREN.

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

The Active Ingredient Is: 5-HTP (5-hydroxytryptophan)

5-HTP is a naturally occurring amino acid metabolite that acts as a direct precursor to serotonin, a key neurotransmitter involved in regulating mood, appetite and sleep. This form is produced in the body from tryptophan and is used in dietary supplements to support normal serotonin production.

This formula uses the 5-HTP active ingredient to help support your body's own serotonin production. It is typical for 5-HTP supplements to be made in capsule form and packaged with common excipients to aid with stability.

What Does 5-HTP Do?

5-HTP helps with normal serotonin synthesis, which ties into mood, appetite and sleep regulation in line with EFSA guidance. This supports the body's standard physiological processes involved in these functions.

EFSA-backed information recognises serotonin’s role in mood and sleep regulation, with 5-HTP providing a direct biochemical step in its production. This language shows how the nutrient participates in normal bodily function without implying disease outcomes.

This supplement is not intended to diagnose, treat, cure, or prevent any disease.

Natrol stands out for quality-focused manufacturing and a clear commitment to safety, which is why we decided to team up with them for 5-HTP. The brand is built on a solid track record of making drug-free supplements and sticking to regulatory expectations for dietary products, underscoring a philosophy of purity and reliability.

Natrol emphasises production in facilities that follow current Good Manufacturing Practice (cGMP) standards, which supports consistent quality and traceability across batches. This reliability, paired with their stated adherence to industry regulations, lines up with Welzo’s standards for responsible sourcing, as reflected in our team of medical experts and our ingredient quality and purity standards.

For this specific supplement, Natrol’s strength lies in delivering a straightforward 5-HTP product within a framework of quality assurance, making them a natural fit for mood and relaxation support formulation. Our evaluation process, conducted by our team of medical experts, highlighted Natrol as a trustworthy partner with robust quality controls that support safe, consistent products, further reinforced by our ingredient quality and purity standards.