--- product_id: 263865106 title: "Magtein Magnesium L-Threonate Capsules (667mg, 180 Pieces)" brand: "source naturals" price: "627.43 DT" currency: TND in_stock: true reviews_count: 5 category: "Source Naturals" url: https://www.desertcart.tn/products/263865106-magtein-magnesium-l-threonate-capsules-667mg-180-pieces store_origin: TN region: Tunisia --- # 180 capsules for 3-month supply Secure, tamper-evident packaging 667mg Magnesium L-Threonate per capsule Magtein Magnesium L-Threonate Capsules (667mg, 180 Pieces) **Brand:** source naturals **Price:** 627.43 DT **Availability:** ✅ In Stock ## Summary > 🧠 Elevate your mind, power your day—because your brain deserves the best. ## Quick Answers - **What is this?** Magtein Magnesium L-Threonate Capsules (667mg, 180 Pieces) by source naturals - **How much does it cost?** 627.43 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/263865106-magtein-magnesium-l-threonate-capsules-667mg-180-pieces) ## Best For - source naturals enthusiasts ## Why This Product - Trusted source naturals brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted Quality:** Source Naturals brand with 4.6-star rating from 1,389 users—join the community optimizing brain health. - • **Pure & Unflavored:** No artificial flavors or fillers, perfect for clean, mindful supplementation. - • **Long-Lasting Supply:** 180 capsules provide a convenient 3-month regimen—never run out during your peak productivity phase. - • **Cognitive Clarity Boost:** Clinically studied 667mg Magnesium L-Threonate supports sharper memory and focus. - • **Sleep & Learning Synergy:** Users report deeper sleep and enhanced learning—unlock your brain’s full potential nightly. ## Overview Source Naturals Magtein Magnesium L-Threonate Capsules deliver 667mg of bioavailable magnesium per dose, designed to support learning, memory, and deep restorative sleep. With 180 unflavored capsules in secure packaging, this supplement offers a trusted, long-lasting brain health solution favored by thousands of users. ## Description Rich in nutrients, this will be a perfect pick for you. Take it as directed to enjoy the best results. The product will meet your requirements perfectly. Review: Good - とっても良いです。頭がスッキリします。 睡眠が深くなった様に感じます。 Review: Good - Nice staff ## Features - Package include: 180 capsules - Comes with secure packaging - Take it as directed to enjoy the best results ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00AXTO30G | | Best Sellers Rank | #60,963 in Health ( See Top 100 in Health ) #1,260 in Mineral Supplements | | Brand | Source Naturals | | Brand Name | Source Naturals | | Customer Reviews | 4.6 out of 5 stars 1,389 Reviews | | Flavor | Unflavored | | Flavour | Unflavored | | Item Form | Capsules | | Item Weight | 0.1 Pounds | | Item form | Capsules | | Manufacturer | Source Naturals | | Manufacturer Part Number | SN2486 | | Model Number | SN2486 | | Number of Items | 1 | | Primary Supplement Type | Magnesium | | Primary supplement type | Magnesium | | Product Benefits | for Learning and Memory | | Product benefits | for Learning and Memory | | UPC | 021078024866 | | Unit Count | 180 Count | | Unit count | 180 Count | ## Product Details - **Brand:** Source Naturals - **Flavour:** Unflavored - **Item form:** Capsules - **Primary supplement type:** Magnesium - **Unit count:** 180 Count ## Images ![Magtein Magnesium L-Threonate Capsules (667mg, 180 Pieces) - Image 1](https://m.media-amazon.com/images/I/61K88UFg5JL.jpg) ## Questions & Answers **Q: 3 capsules contain 2 gm magnesium l-threonate and 144 mg of magnesium. How much L-threonate is this? Product label says nothing.** A: Hi... The l-threonate is just a metabolite (salt) of vitamin C that is bound to the magnesium as a chelation agent to supposedly make the magnesium more bioavailable, particularly in the brain. It's not a substance that acts independently, or is counted independently, of the magnesium. It takes 2 gm of magnesium l-threonate to get 144 mg of actual elemental magnesium, such as you might find in more commonplace magnesium supplements... it's just that binding the magnesium with a chelation agent (in this case l-threonate) may make each mg of magnesium more bioavailable (esp in the brain), than larger amounts of regular magnesium. Wonder if you're thinking of, and maybe looking for, l-theanine? That's a totally different substance (supposed to provide a relaxed alertness) from green tea. If that's what you want, it is available as its own thing. **Q: why does my bottle show Maltodextrin in the "other ingredients" but on the website label it does not show it? I bought this based on the ingredients.** A: This problem needs to be addressed and not pawned off. The June/July2016 reviews have a higher level of complaints. Update the photos if the manufacturer has changed ingredients! **Q: why 2000 mg in some and 645 mg in others** A: 2000 mg of magnesium threonate will yield 144 mg of elemental magnesium. This seems to be the recommended daily dosage. Three capsules, each containing 645 mg of magnesium threonate will be needed to give a daily dosage of 1935 mg (which is the same as 2000 mg within rounding error). But some brands use two larger capsules to provide the recommended daily dosage and these may be harder to swallow for some people. **Q: Is it best to take with food or on empty stomach?** A: Best on an empty stomach. I take 2 am and 1 pm. Directions are 3 per day with 1 taken a few hours before bedtime and 2 taken during the day. I read that magnesium absorbs best on an empty stomach and some supplement instructions recommend taking that way also. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good *by A***N on 13 April 2026* とっても良いです。頭がスッキリします。 睡眠が深くなった様に感じます。 ### ⭐⭐⭐⭐⭐ Good *by N***ク on 1 March 2026* Nice staff ### ⭐⭐⭐⭐⭐ 脳の健康のために *by 香***子 on 26 May 2025* 毎日欠かさず飲んでいます。 安心感があります。 ありがとうございました。 ## Frequently Bought Together - Source Naturals Magtein Magnesium L-Threonate, 667mg, Supports Focus, Mood, Healthy Memory, Cognitive Function - 180 Capsules - SlowMag Muscle + Heart Magnesium Chloride with Calcium Supplement to Support Muscle Relaxation, Occasional Muscle Cramping & Heart Health, High Absorption, 180 Count - Jarrow Formulas Extra Strength Methyl B-12 1000 mcg & Methyl Folate 400 mcg + P-5-P, Dietary Supplement for Cellular Energy Metabolism and Cardiovascular Support, 100 Chewable Tablets, 100 Day Supply --- ## 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.tn/products/263865106-magtein-magnesium-l-threonate-capsules-667mg-180-pieces](https://www.desertcart.tn/products/263865106-magtein-magnesium-l-threonate-capsules-667mg-180-pieces) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-10*