NOW Foods L-Tryptophan helps everyday stress drift towards calmer moods and better sleep by delivering a strong amount of tryptophan that supports serotonin and melatonin production. This vegan and free from common allergens option emphasises simplicity for daily use and reliable sleep support. The brand has built an award winning, decades long reputation for quality.

Available Sizes & Variants:

60 tablets – convenient daily dose for sleep and mood support.

Benefits & Features:

• Promotes calmer mood and sleep quality.
• Each tablet delivers 1000 mg of L-tryptophan, supporting sleep onset and mood when taken as part of a regular routine.
• Vegan and free from common allergens, making it suitable for plant-based diets.
• Manufactured in GMP certified facilities with third party testing, ensuring purity and consistency you can rely on.
• Tryptophan acts as a serotonin and melatonin precursor, helping mood balance and sleep regulation, a natural synergy with NOW Foods' broader wellness range such as magnesium glycinate and probiotics.

NOW Foods has built an award winning, decades long reputation for quality. With GMP certified facilities, third party testing, and transparent sourcing, the brand delivers purity you can trust. This L-Tryptophan formula stays true to that ethos, offering a robust 1000 mg per tablet in a vegan, allergen friendly ready to use format. NOW Foods also offers a broad wellness range, including vitamin d supplement and probiotics. It ships worldwide and supports NOW's reputation as a global leader in natural health.

Croscarmellose Sodium, Hydroxypropyl Cellulose, Stearic Acid (vegetable source), Magnesium Stearate (vegetable source), Vegetarian Coating [hypromellose (cellulose), calcium carbonate, glycerin] and Silicon Dioxide.

• GTIN: 733739001696
• Manufacturer: NOW Foods
• Categories: Best SellersNOW FoodsSports Supplements Black Friday SaleTryptophan Supplements
• 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.

Take 1 tablet 1 to 3 times daily on an empty stomach, with the final dose at bedtime, or as directed by your physician. Store in a cool, dry place after opening. For adults only. Consult a physician if pregnant/nursing, taking medication (especially antidepressants such as SSRIs and MAOIs), or have a medical condition. May cause drowsiness. Do not use with alcoholic beverages or while operating heavy machinery. Keep out of reach of children.

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

The Active Ingredient Is: L-Tryptophan

L-Tryptophan is an essential amino acid that acts as a natural building block for serotonin and melatonin, helping normal mood and sleep regulation stay on track.

This formula is vegan and free from gluten, dairy and soy, using plant-based excipients and a vegetarian coating.

What Does L-Tryptophan Do?

L-Tryptophan participates in serotonin and melatonin synthesis, helping healthy mood balance and sleep patterns in adults.

These neurotransmitter pathways help regulate daily wellbeing and circadian rhythms, aligning with established nutritional guidance on amino acid roles in brain function.

The information above reflects EFSA-supported concepts regarding amino acid involvement in neurotransmitter production.

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

NOW Foods is our preferred partner for L-Tryptophan because the brand brings a long-standing reputation for quality, openness and accessibility in the dietary supplement space. With over five decades in operation, NOW Foods remains widely recognised for hitting high standards and is known for third-party testing and transparent ingredient sourcing, which lines up with our commitment to trustworthy supplements.

Our expert team looked at NOW Foods’ manufacturing philosophy and confirmed practices that emphasise GMP-certified facilities, solid quality assurance, and regular supplier audits. The brand’s thorough identity and purity testing, plus controls to minimise contaminants, give us confidence in consistent product quality. This diligence is complemented by their transparent packaging and ongoing industry recognition.

This brand is particularly well suited to L-Tryptophan due to its vegan, gluten‑free, dairy‑free and preservative-free formulation, supporting a product that is suitable for vegetarians. For our evaluation, NOW Foods demonstrated a strong alignment with our quality standards our ingredient quality and purity standards and was reviewed by our expert team of doctors, nurses, and nutritionists for compliance with these practices. This brand-product match is a natural fit for Welzo customers seeking reliable sleep and mood support.