--- product_id: 7770285 title: "Life Extension L-Theanine, 100 mg, Relaxation, 60 Capsules" brand: "life extension" price: "¥5754" currency: JPY in_stock: true reviews_count: 12 category: "Life Extension" url: https://www.desertcart.jp/products/7770285-life-extension-l-theanine-100-mg-relaxation-60-capsules store_origin: JP region: Japan --- # Non-GMO, gluten-free & vegetarian Supports calming brainwave patterns 100 mg pure L-Theanine per capsule Life Extension L-Theanine, 100 mg, Relaxation, 60 Capsules **Brand:** life extension **Price:** ¥5754 **Availability:** ✅ In Stock ## Summary > 🧘‍♀️ Elevate your calm, focus, and mood—because your mind deserves the best. ## Quick Answers - **What is this?** Life Extension L-Theanine, 100 mg, Relaxation, 60 Capsules by life extension - **How much does it cost?** ¥5754 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/7770285-life-extension-l-theanine-100-mg-relaxation-60-capsules) ## Best For - life extension enthusiasts ## Why This Product - Trusted life extension brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Zen in a Capsule:** Harness the calming power of green tea’s signature amino acid to keep stress at bay. - • **Feel-Good Neuro Boost:** Encourages GABA production to elevate dopamine and serotonin for sustained mood support. - • **Clean & Conscious Formula:** Non-GMO, gluten-free, vegetarian, and crafted with premium ingredients sourced globally. - • **Meditation Mode Activated:** Promotes brainwave patterns akin to meditation or a soothing massage for mental clarity. - • **Trusted Quality Assurance:** Backed by expert formulation and Certificate of Analysis for every batch you trust. ## Overview Life Extension L-Theanine delivers 100 mg of pure, non-GMO, gluten-free, and vegetarian L-theanine per capsule, designed to promote relaxation, support healthy stress response, and enhance mood by modulating brainwave activity and boosting feel-good neurotransmitters. Perfect for professionals seeking calm alertness and restful sleep, this supplement is crafted with quality assurance and expert formulation. ## Description L-theanine, an amino acid found in green tea, has a reputation for its calming and relaxing effects. This theanine supplement supports mood and fights stress in a few different ways. It promotes relaxation by supporting a healthy stress response, encourages brainwave patterns that are similar to the effects of meditation, and encourages the production of GABA, a neurotransmitter that influences levels of the feel-good neurotransmitters dopamine and serotonin. The theanine used in this L-theanine supplement contains the pure form of this amino acid, delivering 100 mg of L-theanine and is non-GMO, gluten-free and vegetarian. Review: For me, great for sleep - I bought this because I read about it being great for "calm alertness." For me, it made me calm, but it also made me tired. As someone who has a racing mind at bedtime and struggles to sleep because of it, I decided to try it before bed instead. It was perfect and helped me fall asleep easily. I do wish I could use it during the day, but I can't be upset about it helping me get a good night's sleep! Review: Helps with focus - Very helpful with focus in high-stress work environments. ## Features - Promotes relaxation – If you’ve felt the calming effects of green tea, thank theanine! Found in green tea, it’s one of the best-known amino acids for stress— and for good reason. This supplement supports a healthy stress response to maintain your zen. - Calming brainwave patterns – L-theanine helps modulate several different aspects of brain activity for mood support. This supplement promotes specific brainwave patterns similar to those associated with performing meditation or getting a massage. - Neurotransmitter production – The neurotransmitter gamma amino butyric acid (GABA) plays a role in influencing healthy levels of the feel-good neurotransmitters dopamine and serotonin. L-theanine helps encourage GABA production, to keep that feel-good feeling going. - Science matters – Expert formulators design our supplement formulas, and a Certificate of Analysis is available for every Life Extension product. - Quality ingredients – The majority of our products are non-GMO, gluten-free and manufactured in the USA with internationally sourced ingredients. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00BSH7LXS | | Age Range Description | Adult | | Allergen Information | Gluten Free, Non-GMO | | Best Sellers Rank | #6,461 in Health & Household ( See Top 100 in Health & Household ) #4 in 5-HTP Nutritional Supplements #787 in Sales & Deals | | Brand | Life Extension | | Brand Name | Life Extension | | Color | Off White | | Container Type | Bottle | | Customer Reviews | 4.6 out of 5 stars 1,053 Reviews | | Diet Type | Vegetarian | | Dosage Form | Capsule | | Flavor | Unflavored | | Global Trade Identification Number | 00737870168362 | | Item Dimensions | 2.18 x 2.18 x 3.66 inches | | Item Form | Capsule | | Item Highlight | Amino Acid Theanine for Calm, Relaxation & Mood, Gluten-Free, Non-GMO & Vegetarian, 100 mg, 60 Capsules | | Item Nype Name | L-Theanine Supplement | | Item Weight | 1.6 ounces | | Manufacturer | Life Extension | | Manufacturer Part Number | 01683 | | Material Features | GMO Free, Gluten Free | | Material Type Free | Gluten Free | | Model Name | L-Theanine | | Model Number | 01683 | | Number of Items | 1 | | Package Size Name | 60 Count | | Primary Supplement Type | L-Theanine | | Product Benefits | Encourages brainwave patterns similar to those associated with meditation & massage, Involved in production of gamma amino butyric acid, the neurotransmitter that influences levels of dopamine and serotonin, Promotes relaxation by helping to support a healthy stress response | | Recommended Uses For Product | Mood Support Supplement | | Special Ingredients | L-Theanine | | Supplement Formulation | Multi-Supplement | | Total Servings Per Container | 60 | | UPC | 737870168362 | | Unit Count | 60 Count | ## Product Details - **Brand:** Life Extension - **Diet Type:** Vegetarian - **Flavor:** Unflavored - **Item Form:** Capsule - **Item Weight:** 1.6 ounces - **Item dimensions L x W x H:** 2.18 x 2.18 x 3.66 inches - **Primary Supplement Type:** L-Theanine - **Special Ingredients:** L-Theanine - **Unit Count:** 60 Count ## Images ![Life Extension L-Theanine, 100 mg, Relaxation, 60 Capsules - Image 1](https://m.media-amazon.com/images/I/71dpvBT8FrL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: What does taking L-theanine do?** A: L-theanine is a mood support supplement that supports stress relief, alongside a calm and relaxed state of mind. It does this by influencing brainwave patterns in ways similar to calming activities like meditation and massage. **Q: Is it okay to take L-theanine daily?** A: Not only can you take L-theanine daily, you can take it multiple times a day as needed. This stress relief amino acid can be taken two capsules one to two times a day. Remember to always follow the instructions on any supplement. **Q: When should you take L-theanine?** A: You can take L-theanine daily or as needed to support your mood. If you’re not sure if you should start taking L-theanine or whether this amino acid is right for you, discuss it with your primary care provider. **Q: Does L-theanine help support brain health?** A: L-theanine influences calming brainwave patterns that support mood health. It also plays a role in the production of feel-good neurotransmitters dopamine and serotonin. So in a sense, yes—L-theanine is good for your brain. **Q: Will L-theanine give me energy?** A: This supplement is not intended to support energy production in the body. In fact, L-theanine has the opposite effect! This supplement was formulated specifically to help maintain a relaxed state of mind. ## Customer Reviews ### ⭐⭐⭐⭐⭐ For me, great for sleep *by J***A on July 23, 2026* I bought this because I read about it being great for "calm alertness." For me, it made me calm, but it also made me tired. As someone who has a racing mind at bedtime and struggles to sleep because of it, I decided to try it before bed instead. It was perfect and helped me fall asleep easily. I do wish I could use it during the day, but I can't be upset about it helping me get a good night's sleep! ### ⭐⭐⭐⭐⭐ Helps with focus *by F***S on August 15, 2026* Very helpful with focus in high-stress work environments. ### ⭐⭐⭐⭐⭐ Great product *by J***E on April 16, 2026* I love this brand and this product. It seems to be a clean product line. Helps calm my mind without making me drowsy. I think it has also helped to lower blood pressure. ## Frequently Bought Together - Life Extension L-Theanine, 100 mg, 60 Vegetarian Capsules — Supports a Calming & Mood Enhancing Effect, Amino Acid Derived From Tea - Gluten-Free, Non-GMO - Life Extension Neuro-Mag Magnesium L-Threonate, Magnesium L-threonate, Memory Health, Quick Thinking, Cognitive Health Support, Vegetarian, Non-GMO, 90 Vegetarian Capsules - Life Extension Glycine, 1000 mg, Amino Acid That Promotes Healthy Sleep, Gluten-Free, Non-GMO, Vegetarian, 100 Capsules --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/7770285-life-extension-l-theanine-100-mg-relaxation-60-capsules](https://www.desertcart.jp/products/7770285-life-extension-l-theanine-100-mg-relaxation-60-capsules) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-14*