
L-Tryptophan – Amino Acid Formula | OSAVI | 60 Capsules
OSAVI L-Tryptophan is a premium amino acid supplement designed to support sleep and mood balance.
- Contains 500 mg of L-Tryptophan per capsule.
- Essential for serotonin production supporting mood regulation.
- Backed by PubMed-indexed clinical studies on amino acid bioavailability.
- Vegan-friendly and allergen-free capsule shell.
Original price was: 12,99 €.10,90 €Current price is: 10,90 €.
Sleep and Mood Enhancement
L-Tryptophan, an essential amino acid, is presented in its most bioavailable form, promoting efficient absorption and metabolism. Its selection ensures superior support for serotonin synthesis, a key neurotransmitter influencing sleep and mood.
This critical nutrient activates pathways integral to serotonin and melatonin production, enhancing sleep quality and emotional balance. Its efficacy is echoed in scientific literature, aligning with EFSA standards on amino acid benefits.
L-TRYPTOPHAN – Food Supplement, Capsules.
Pack Size: 60 Capsules (60 Servings).
Manufacturer: OSAVI LTD, 11 Chessingham Park, Dunnington, York, YO19 5SE, UK.
Global Seller of Record: Human Performance Pro LLC, Wyoming, USA. European dispatch is managed strictly via contract by authorized third-party logistics (3PL) fulfillment partners.
Ingredients: L-Tryptophan, Capsule Shell (Hydroxypropyl Methylcellulose).
| Ingredient / Specification | Per Serving (1 Capsule) | % NRV* |
|---|---|---|
| L-Tryptophan | 500 mg | * |
Protocol: Take 1 capsule daily, ideally during a meal or before sleep with a glass of water.
Synergistic Stacking: Combine with Magnesium Citrate or Glycinate, and Vitamin B6 for optimal amino acid absorption.
Storage Protocols: Store in a cool, dry place away from direct sunlight.

Clean-Label Excellence & Bioavailability: The Osavi Standard
Verified Authenticity: Human Performance Pro operates as an official authorized European distributor for Osavi products. Recognized across Europe for an uncompromised commitment to quality and strict Clean-Label standards, Osavi formulations are sourced directly from the manufacturer to guarantee absolute authenticity, batch-to-batch freshness, and full EU regulatory compliance.
Why Choose Osavi Formulations?
- Clean-Label Purity: Formulated in accordance with rigorous UK and European manufacturing protocols, eliminating unnecessary synthetic fillers, binders, and artificial additives to deliver clean, highly tolerable nutrition.
- Superior Bioavailability: Utilizing highly active, biologically efficient compound forms—such as naturally fermented menaquinone-7 (MK-7) and premium cholecalciferol—engineered for extended plasma stability and optimal cellular utilization.
- Rigorous Quality Control: Every production batch undergoes independent, accredited laboratory testing to verify active potency and guarantee complete freedom from heavy metals, micro-contaminants, and prohibited substances. View our Batch Certificates (COA) library →
B2B & Wholesale Supply: Are you a longevity clinic, healthcare practitioner, or authorized retailer seeking official Osavi distribution in the European Union? Access our dedicated wholesale hub at b2b.humanperformance.pro.
“Driven by simplicity and backed by science: pure, highly bioavailable nutrition designed for daily performance.”
— The Osavi Quality Standard
L-Tryptophan – Amino Acid Formula | OSAVI | 60 Capsules
Please note: A varied and balanced diet alongside a healthy lifestyle is essential! Taking care of your overall well-being is highly commendable. When we actively look after our physical and emotional health, we feel happier, more energized, and more productive. Quality sleep, regular physical activity, wholesome nutrition, and strong social connections play a vital role in human health.
By incorporating a wide variety of foods into your daily diet—such as fresh vegetables, fruits, whole grains, bakery products, and quality meats—your body will naturally absorb the essential nutrients it needs to thrive. Supplements, vitamins, and minerals are designed solely to complement your diet. Use them when you are confident of a specific nutrient gap or as recommended by a physician. Ideally, consult a healthcare professional for a blood test to accurately determine your individual nutrient requirements.
Stay healthy and thrive!
HumanPerformance.pro
🛡️ Regulatory, Safety & Cross-Border Compliance Notice
EFSA & FDA Disclaimer: Scientific and technical information regarding ingredient specifications, active compounds, and biological pathways provided on this page is intended solely for customer education and dietary enrichment. These statements have not been evaluated by the Food and Drug Administration or EFSA. Products are not intended to diagnose, treat, cure, or prevent any disease or medical condition.
Usage & Safety Precautions: Intended strictly for adult use. Do not exceed the stated recommended daily dose. Food supplements must not be used as a substitute for a varied, balanced diet and a healthy lifestyle. If you are pregnant, nursing, taking prescription medication, or under medical supervision, consult your physician prior to use. Discontinue use immediately if any adverse reactions occur. Keep out of reach of young children. Store tightly sealed in a cool, dry environment.
Global Seller of Record & Cross-Border Terms: All international orders are executed under cross-border e-commerce framework terms by Human Performance Pro LLC, Wyoming, USA. By finalizing the purchase, the customer explicitly acknowledges and agrees to act as the Importer of Record for personal consumption, assuming full legal responsibility for compliance with local custom regulations. European dispatch is managed strictly via contract by authorized third-party logistics (3PL) fulfillment partners handling only warehousing and transit.

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