Life Extension Optimized Tryptophan Plus combines L tryptophan with niacinamide and a rosemary hops blend to support mood balance and a calmer, restful night. L tryptophan serves as a serotonin precursor, while niacinamide and lysine help its metabolism, supported by calming hops rosemary extract blend. Life Extension is a trusted name in supplements, with non GMO gluten free formulations and LE certification backed by strict quality controls. This product pairs well with a vitamin d supplement and a probiotic routine for overall daily wellness.

Available Sizes & Variants:

90 Vegetarian Capsules - convenient daily dose for flexible use.

Benefits & Features:

• Supports mood balance.
• Promotes restful sleep by supporting serotonin production and stabilising circadian rhythms through L tryptophan, complemented by niacinamide and lysine for smooth metabolic support and balanced energy the next day.
• Calming, gentle support before bed.
• Hops and rosemary extracts provide antioxidant and neuromodulatory support to help you feel steadier.
• Non GMO and gluten free formula presented in vegetarian capsules, with rigorous purity testing to ensure consistent potency, real world effectiveness, and label accuracy for daily use.

Life Extension is renowned for research driven formulations and meticulous purity checks. Optimized Tryptophan Plus reflects that heritage with standardized botanical extracts and LE certification, ensuring reliable potency. The star ingredients include L tryptophan 1000 mg per three capsules, along with niacinamide 66 mg and lysine 250 mg, plus a Perluxan hops extract and rosemary extract blend at 285 mg. The result is a reliable, daily option for mood support and calmer evenings, backed by a brand trusted by health enthusiasts worldwide. For those focusing on comprehensive daily wellness, a magnesium glycinate supplement can be a gentle option to support relaxation and muscle comfort, while probiotics help support gut harmony.

Ingredients:
Niacin (as niacinamide) 66 mg, L-Tryptophan 1000 mg,
L-Lysine (as L-Lysine HCl) 250 mg, Proprietary Tryptophan Plus Blend 285 mg, Perluxan® Hops standardized extract (cones), Rosemary standardized extract (leaf)

Other ingredients: vegetable cellulose (capsule), microcrystalline cellulose, vegetable stearate, hydroxypropyl methylcellulose, silica.

• GTIN: 737870172192
• Manufacturer: Life Extension
• Categories: CHECKOUT UPSELLLife ExtensionNew ArrivalsTryptophan 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.

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 mood regulation and sleep. This amino acid is supported by niacinamide and lysine to aid its metabolism, with hops and rosemary extracts providing additional calming support.

This form is used in dietary supplements to support normal nervous system function and overall wellbeing, reflecting its role in serotonin synthesis and physiological balance.

What Does L-Tryptophan Do?

L-Tryptophan participates in the production of serotonin, contributing to normal mood and sleep regulation as part of the body’s daily function. The supporting cofactors help its metabolic pathway while botanical extracts may augment calming effects.

Dr. Jenkins of a university found that tryptophan can be associated with improvements in subjective sleep quality and mood in adults with mild sleep disturbances, aligning with its role in promoting calm and restful cycles.

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

Life Extension is Welzo’s chosen partner for Optimized Tryptophan Plus because the brand is renowned for research‑driven formulations and ingredient transparency, paired with rigorous manufacturing standards. Their long‑standing reputation in the nutraceutical space reflects a commitment to quality assurance and trusted labelling, backed by internal quality controls and comprehensive product literature. The manufacturer operates facilities compliant with current good manufacturing practices, and the Non‑GMO, gluten‑free certification underscores a consistent quality standard that aligns with our safety expectations. This credibility is reinforced by the brand’s history of delivering pure, well‑characterised ingredients and high‑integrity sourcing that our team recognises. This brand was evaluated by our medical team for compliance with how we verify ingredient quality.

Our vetting criteria emphasised manufacturing excellence, certification integrity, and transparency, which Life Extension consistently demonstrates. This makes Life Extension an ideal partner for a tryptophan‑based formula that combines L‑tryptophan with supporting cofactors and botanicals, ensuring product compatibility with Welzo’s quality standards and customer expectations.