--- product_id: 13380699 title: "L-Tryptophan 500mg, Sleep & Mood Support, 120 Veg Caps | Pure Non-GMO amino acid, high absorption. Helps with occasional stress and supports healthy mood, sleep & PMS support." brand: "superior labs" price: "Β₯7911" currency: JPY in_stock: true category: "Superior Labs" url: https://www.desertcart.jp/products/13380699-l-tryptophan-500mg-sleep-and-mood-support-120-veg-caps store_origin: JP region: Japan --- # 100% Non-GMO & additive-free 500mg pure L-Tryptophan dose Supports restful sleep & mood L-Tryptophan 500mg, Sleep & Mood Support, 120 Veg Caps | Pure Non-GMO amino acid, high absorption. Helps with occasional stress and supports healthy mood, sleep & PMS support. **Brand:** superior labs **Price:** Β₯7911 **Availability:** βœ… In Stock ## Summary > πŸŒ™ Elevate your nights, empower your days β€” sleep smarter, live better! ## Quick Answers - **What is this?** L-Tryptophan 500mg, Sleep & Mood Support, 120 Veg Caps | Pure Non-GMO amino acid, high absorption. Helps with occasional stress and supports healthy mood, sleep & PMS support. by superior labs - **How much does it cost?** Β₯7911 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/13380699-l-tryptophan-500mg-sleep-and-mood-support-120-veg-caps) ## Best For - superior labs enthusiasts ## Why This Product - Trusted superior labs brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Sleep Like a Pro:** Promotes deep relaxation and balanced mood to help you conquer busy days with restful nights. - β€’ **Risk-Free Wellness:** Backed by nearly a decade of customer satisfaction with hassle-free refunds. - β€’ **Pure Powerhouse Dose:** Each capsule delivers a potent 500mg of L-Tryptophan for optimal serotonin support. - β€’ **Clean & Green Formula:** Zero synthetic fillers or heavy metalsβ€”just pure, non-GMO amino acid goodness. - β€’ **Trusted Quality Assurance:** Manufactured in rigorously audited facilities ensuring premium purity and safety. ## Overview Superior Labs L-Tryptophan 500mg offers a clean, high-absorption amino acid supplement designed to naturally boost serotonin levels, supporting healthy sleep, mood balance, and stress relief. With 120 vegan capsules, this non-GMO, additive-free formula is crafted under strict quality controls to ensure purity and effectiveness for adult wellness. ## Description Buy Superior Labs L-Tryptophan 500mg, Sleep & Mood Support, 120 Veg Caps | Pure Non-GMO amino acid, high absorption. Helps with occasional stress and supports healthy mood, sleep & PMS support. on desertcart.com βœ“ FREE SHIPPING on qualified orders ## Features - MAINTAIN SEROTONIN LEVELS – L-Tryptophan is an amino acid that converts to serotonin in the body. This supports multiple brain functions and helps to maintain balance to produce normal sleep.* - PROMOTES RELAXATION – Our non-GMO L-Tryptophan dietary supplements promote relaxation to support healthy sleep, mood, and overall calm.* - ABSOLUTE PURITY - ZERO SYNTHETIC ADDITIVES, FILLERS, HEAVY METALS, ADULTERANTS - You will never see unnecessary additives such as stearates, dioxides, glycerides or fillers other brands use to make manufacturing cheaper, faster and easier. In addition, we put all ingredients and products through rigorous testing to make sure they are 100% free of contaminants. - UNQUESTIONABLE QUALITY - Our products are manufactured in facilities that undergo rigorous third-party audits to ensure the highest standards of quality. This strict quality assurance process is designed to meet and exceed industry standards, ensuring that our products are of the highest caliber supplements in the market place. - NO RISK AND NO HASSLE - For almost a decade, we have been delighting desertcart customers. If you are not satisfied with the benefits, results, or are unsatisfied with the product in any other way, please contact us and we'll gladly refund your money. That's it - no questions, no hassle, no risk. ​ ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00TA7QNZU | | ASIN | B00TA7QNZU | | Age Range Description | Adult | | Best Sellers Rank | #82,771 in Health & Household ( See Top 100 in Health & Household ) #79 in 5-HTP Nutritional Supplements | | Brand Name | Superior Labs | | Container Type | Bottle | | Customer Reviews | 4.4 4.4 out of 5 stars (235) | | Date First Available | September 22, 2016 | | Diet Type | Gluten Free | | Dosage Form | Capsule | | Flavor | Unflavored | | Item Form | Capsule | | Item Highlight | Pure Non-GMO amino acid, high absorption. Helps with occasional stress and supports healthy mood, sleep & PMS support. | | Item Weight | 500 milligrams | | Item model number | 8613591 | | Manufacturer | Superior Labs | | Manufacturer | Superior Labs | | Manufacturer Part Number | 8613591 | | Material Features | GMO Free | | Model Number | 8613591 | | Number of Items | 1 | | Package Dimensions | 4.8 x 2.7 x 2.6 inches; 0.02 ounces | | Primary Supplement Type | L-Tryptophan | | Product Benefits | Sleep Support | | Special Ingredients | L-Tryptophan | | UPC | 794168613591 850569006209 | | Unit Count | 120 Count | ## Product Details - **Age Range (Description):** Adult - **Brand:** Superior Labs - **Diet Type:** Gluten Free - **Flavor:** Unflavored - **Item Form:** Capsule - **Item Weight:** 500 milligrams - **Primary Supplement Type:** L-Tryptophan - **Product Benefits:** Sleep Support - **Special Ingredients:** L-Tryptophan - **Unit Count:** 120 Count ## Images ![L-Tryptophan 500mg, Sleep & Mood Support, 120 Veg Caps | Pure Non-GMO amino acid, high absorption. Helps with occasional stress and supports healthy mood, sleep & PMS support. - Image 1](https://m.media-amazon.com/images/I/518iaiipZML.jpg) ## Questions & Answers **Q: do any of the ingredients come from China?** A: I can't believe how many people are outraged by supplements coming from China. I wonder if any of these same people take pharmaceutical drugs, EVER? 90% of those are made in China. Just a thought. **Q: How long until I start seeing results?** A: I took two capsules before bed, and it took about a week for me to start feeling the benefits from this medication. As I said in my review I did not gain much as far as sleep, but it did help with depression. **Q: What does this product do for your body?** A: L-Tryptophan is an amino acid that converts serotonin in the body, this supports multiple brain functions and helps to maintain serotonin levels to promote relaxation and produce a better night’s sleep. Best Regards, Cliff **Q: is the veggie cap made from hyrpomellose?** A: You should probably contact Superior Labs in Park City, Utah for this information. ## Frequently Bought Together - Superior Labs – Pure L-Tryptophan – 500mg, 120 Vegetable Capsules – Non-GMO Dietary Supplement for Restful Sleep & Relaxation – Supports Feelings of Well Being and Healthy Circulation Circulation - Superior Labs - Pure L-Theanine Non-GMO, No Additives - 250mg, 90 Vegetable Capsules - Powerful Formula for Healthy Sleep and Mood - Dietary Supplement for Calming and ​Relaxation - Superior Labs – Pure Natural L-Tyrosine NonGMO – 500 mg, 120 Vegetable Capsules – Supports Mental Clarity – Promotes Alertness – Boosts Energy – Dietary Supplement for Calming and Relaxation --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/13380699-l-tryptophan-500mg-sleep-and-mood-support-120-veg-caps](https://www.desertcart.jp/products/13380699-l-tryptophan-500mg-sleep-and-mood-support-120-veg-caps) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-10*