Life Extension Optimized Tryptophan Plus streamlines mood support and restful sleep through a balanced tryptophan blend, helping you feel steadier and sleep better. The formula pairs tryptophan with niacinamide, lysine, hops and rosemary to support how the body uses tryptophan for mood, sleep and stress resilience. Life Extension’s reputation for quality and transparent ingredients is built on GMP compliant production and careful quality standards.

Available Sizes & Variants:

90 vcaps – convenient daily serving

Benefits & Features:

• Supports mood and sleep by helping serotonin activity.
• Includes niacinamide and lysine to support tryptophan's activity and conversion.
• Hops and rosemary work together to support healthy tryptophan activity and digestion of the formula.
• Gluten free, non-GMO and vegetarian capsules reflect strict ingredient controls.
• Designed as a tryptophan supplement, taking it before bed can help establish a calmer night routine and support a positive mood the next day every day.

Life Extension has a long heritage of science led, GMP compliant manufacturing and transparent ingredient lists, giving you real confidence in every capsule. The star ingredient is tryptophan, paired with niacinamide and lysine alongside hops and rosemary to support serotonin activity. Perluxan hops extract and rosemary extract are standardised for consistency, and the vegetarian capsules keep it vegan friendly. It fits into routines quickly and easily, and it’s a thoughtfully crafted, reliable addition. It also pairs well with protein shakes or a supplement vitamin d routine.

L-Tryptophan 1000 mg, L-Lysine (as L-Lysine HCl) 250 mg, Niacin (as niacinamide) 66 mg, Proprietary Tryptophan Plus Blend 285 mg (Perluxan® Hops standardized extract (cones), Rosemary standardized extract (leaf)), vegetable cellulose (capsule), microcrystalline cellulose, vegetable stearate, hydroxypropyl methylcellulose, silica.

• GTIN: 737870172192
• Manufacturer: Life Extension
• Categories: Best SellersLife ExtensionSports 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 up to three (3) capsules all at once before bedtime, or one capsule on an empty stomach before each meal, or as recommended by a healthcare practitioner. For maximum absorption, take with a small amount of carbohydrate, such as diluted juice. Best if taken separately from protein or amino acids. Store tightly closed in a cool and dry place. KEEP OUT OF REACH OF CHILDREN. DO NOT EXCEED RECOMMENDED DOSE. Do not purchase if outer seal is broken or damaged. Consult your healthcare provider before using this product if you are taking medication for mood concerns, such as MAOIs or SSRIs. Use caution before driving or operating heavy machinery.

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

The Active Ingredient Is: L-Tryptophan

L-Tryptophan is an important building block for serotonin, a brain chemical linked to mood, sleep and appetite control.

This formula pairs L-Tryptophan with niacinamide, lysine, hops and rosemary to help tryptophan function and its conversion routes in your body.

What L-Tryptophan Does?

L-Tryptophan is linked to the making and upkeep of serotonin, which helps steady mood and sleep rhythms as well as the body’s response to stress and appetite control.

Partner nutrients like niacinamide, lysine, hops and rosemary are added to help boost the activity and usage of tryptophan in the body.

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

Life Extension is Welzo’s chosen partner for Optimized Tryptophan Plus because their approach to manufacturing excellence aligns with our commitment to quality and transparency. Life Extension is Welzo’s trusted ally for Optimised Tryptophan Plus since their manufacturing stance aligns with our pledge to quality and openness.

The brand is recognised for GMP‑compliant production that prioritises purity and safety, along with vegetarian, gluten free and non‑GMO formulations that cater to dietary needs. The brand is recognised for GMP‑compliant production that prioritises purity and safety, along with vegetarian, gluten free and non‑GMO formulations that cater to dietary needs.

Our team assessed Life Extension’s enduring standing in the sector and its emphasis on robust raw material verification, which helps guarantee steady product quality. Our team assessed Life Extension’s enduring standing in the sector and its emphasis on robust raw material verification, which helps guarantee steady product quality.

This label has earned external validation via its transparent ingredient listing and commitment to standardised extracts, reinforcing trust in the product you pick. This label has earned external validation via its transparent ingredient listing and commitment to standardised extracts, reinforcing trust in the product you pick.

Our panel of doctors, nurses and nutritionists our expert team of doctors, nurses, and nutritionists assess Life Extension against our rigorous criteria, and we reference their practices when judging safety, potency and reliability. Our panel of doctors, nurses and nutritionists our expert team of doctors, nurses, and nutritionists assess Life Extension against our rigorous criteria, and we reference their practices when judging safety, potency and reliability.

When aligned with our our ingredient quality and purity standards, Life Extension delivers a solid product fit for sleep, mood and stress support within a trustworthy brand framework. When aligned with our our ingredient quality and purity standards, Life Extension delivers a solid product fit for sleep, mood and stress support within a trustworthy brand framework.

We’re confident in this partnership, and you can feel reassured by Life Extension’s proven track record and commitment to quality.

We’re confident in this partnership, and you can feel reassured by Life Extension’s proven track record and commitment to quality.