L-Tryptophan delivers a calm mood and easier nights by acting as a serotonin precursor, while this premium supplement from Lidtke ensures quality and purity. This vegan blend pairs L-tryptophan with cofactors like Vitamin B6, Folate and curcumin to support serotonin production, and GMP-certified facilities back the brand's safety and reliability. Lidtke is well-known for premium amino acid supplements and their TryptoGOLD™ formula aims to surpass European standards.

Available Sizes & Variants:

120 capsules - generous supply for daily mood and sleep support.

Benefits & Features:

• Supports mood and relaxation by supplying the key amino acid L-tryptophan that acts as a serotonin precursor.
• Includes cofactors like Vitamin B6, Folate and Magnesium to aid serotonin synthesis and boost effects.
• Curcumin in the blend may slow serotonin breakdown, helping mood stability when paired with L-tryptophan and the essential cofactors, aiding everyday calm and resilience.
• Vegan, allergen-free formula supports safe daily use.
• Designed for night-time use to help sleep onset and mood balance.

From its vegan, non-GMO origins to the premium TryptoGOLD™ L-tryptophan, Lidtke has built a reputation as a mood and sleep specialist. The formula is made in a GMP-certified facility, with each nutrient kept USP-grade for purity. Quality you can trust. TryptoGOLD™ is designed to exceed European pharmacopeia standards, and the brand emphasises transparency and allergen safety. Every batch is tested. Some customers pair this supplement with a vitamin d supplement or probiotics in their routines.

L-Tryptophan

• GTIN: 630610002080
• Manufacturer: Lidtke
• Categories: LidtkeNew ArrivalsTryptophan
• 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 one capsule daily or follow your healthcare professional's instructions. Take 1 capsule\, 1-3 times daily\, between meals or as directed by a health care professional.

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 and a precursor to serotonin, a neurotransmitter involved in regular mood regulation and sleep cycles. This supplement uses ultra-premium L-Tryptophan (TryptoGOLD) in a vegan formula to support dietary compatibility and purity.

This version is produced for vegan use and is designed to provide high-purity tryptophan in a quality-controlled process, aligned with broader quality standards for amino-acid supplements.

What Does L-Tryptophan Do?

L-Tryptophan participates in serotonin synthesis, a normal physiological process linked to mood and relaxation. Research suggests this amino acid can influence mood and sleep responses within recommended ranges, reflecting its role as a serotonin precursor.

Dr. Silber from a university found that L-Tryptophan increases brain serotonin and can support mood and sleep, illustrating its functional contribution in line with EFSA-style thinking.

This supplement isn't meant to diagnose, treat, cure, or prevent any disease.

Lidtke is our chosen partner for L-Tryptophan Complete because this brand has a long-standing track record in amino-acid supplements and premium mood support. This brand consistently emphasises purity and transparency, reinforced by a GMP-certified facility that underscores safety, consistency and quality in production. The key differentiator is their ultra-premium TryptoGOLD™ L-tryptophan, a custom formulation designed to surpass high standards and align with strict quality control, while the vegan, non-GMO profile plus absence of common allergens enhances suitability for a broad range of consumers. For credibility, Lidtke is recognised for its specialised mood-support offerings and for producing vegan, hypoallergenic products with clear ingredient sourcing. This brand stands out against competitors through its dedicated focus on amino acids and mood-related nutraceuticals, and by consistently prioritising purity and transparency. our team of medical experts have evaluated this brand for compliance with our supplement quality standards, helping us ensure robust safety and consistency. We selected Lidtke because their manufacturing philosophy and product architecture align with Welzo’s commitment to quality and trust.