--- product_id: 1864781 title: "Source Naturals Serene Science Theanine Serene with Magnesium - 120 Tablets | Support Calim Mind & Body*" brand: "source naturals" price: "$48.39" currency: USD in_stock: true reviews_count: 8 category: "Source Naturals" url: https://www.desertcart.us/products/1864781-source-naturals-serene-science-theanine-serene-with-magnesium-120-tablets store_origin: US region: United States of America --- # Dual-action L-Theanine + GABA formula Made in USA, cGMP & FDA compliant 120 tablets for 60 days of calm Source Naturals Serene Science Theanine Serene with Magnesium - 120 Tablets | Support Calim Mind & Body* **Brand:** source naturals **Price:** $48.39 **Availability:** ✅ In Stock ## Summary > 🌿 Unlock your calm with science-backed serenity! ## Quick Answers - **What is this?** Source Naturals Serene Science Theanine Serene with Magnesium - 120 Tablets | Support Calim Mind & Body* by source naturals - **How much does it cost?** $48.39 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/1864781-source-naturals-serene-science-theanine-serene-with-magnesium-120-tablets) ## 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 - • **Clean & Pure Formula:** Free from gluten, dairy, soy, yeast, artificial colors, flavors, and preservatives—perfect for the mindful vegetarian professional. - • **FOMO-Free Focus & Rest:** Join thousands who’ve reclaimed calm and better sleep—don’t miss out on feeling serene in a hectic world. - • **Trusted Quality Since 1982:** Crafted under strict cGMP standards in the USA, backed by over 40 years of wellness expertise. - • **Magnesium-Enhanced Soothing:** Includes magnesium and holy basil leaf extract to amplify stress relief and promote restful sleep naturally. - • **Sustained Calm, Twice Daily:** Two tablets deliver a potent blend of L-Theanine and GABA to support deep relaxation and focused attention without grogginess. ## Overview Source Naturals Serene Science Theanine Serene with Magnesium offers a powerful, natural formula combining L-Theanine, GABA, magnesium, and holy basil leaf extract in 120 vegetarian tablets. Designed to promote relaxation, reduce stress, and improve sleep quality without next-day grogginess, this supplement is free from common allergens and artificial additives. Manufactured in the USA under FDA cGMP standards, it supports busy professionals seeking a clean, effective way to restore mental calm and focus. ## Description Buy Source Naturals Serene Science Theanine Serene with Magnesium - 120 Tablets | Support Calim Mind & Body* on desertcart.com ✓ FREE SHIPPING on qualified orders Review: Wow. Just wow! - I like most have some stress and along with it comes random but steady sleep disturbances. Tried L- Tryptophan, Melatonin, Tylenol PM, warm milk, and a host of other things over time. Not much luck sadly. But thats just me. Tried this to add to my barrage of attempts. Pretty powerful to say the least. Yes the pills are big but they snap in half with ease. I did half the dose- so 1 pill at first to see. I couldn't believe how I felt. I mean again- THIS IS MY EXPERIENCE ONLY and maybe Im deficient in Taurine or whatever else thats in it or who knows what else as I havent been eating much anyways to get proper nutrients and aminos so that could be it- perhaps its the ingredients combined? Who knows…but I was actually sorta stoned within an hour of taking it. I sat laughing at the dumbest videos for 2 hours. I felt like a kid. I was yawning by 1.5 hrs and almost crashing but in a good way. I woke up 5 hrs later amazed I had actually fallen into a solid sleep phase. Im normally up every couple of hrs because my brains on overtime. I thought - wow I didnt even take a full dose! It was still early morning so I decided to take another half of one. Quick snap and swallow. The half a pill size is perfect. Within another half hour- off to la la land yet again. It sorta reminded me of when I used to take prescription Ambian. Id highly suggest it to be taken at bed time or at a time your able to rest. Im not groggy at all the next day. But I am a weird calm. I can honestly say its a strange soothing washing over me that I feel. Like staring out at the ocean. Serene. Wholeness. Thats pretty amazing considering its all natural. I think I will order a few bottles to keep on hand to stock up. I have suggested this to a few friends already. If you feel like your going to explode or implode from your life and struggle to relax- you should really try this formula. Id recommend half dosing till you know how itll affect you, and certainly dont plan on doing many activities lol. Dont drive on this. Read the warnings if you take Lithium. Which I dont. I did try other “herbal” smokes prior to this that also did not work- but I would not mix anything with this. Its a very powerful concoction. Atleast for me. I simply love its affects. Relaxation and sleep have been given back to me and Im grateful! Ill probably throw out half the older bottles of stuff Ive tried that did not work now. You have nothing to lose. Its cost is great especially when its on sale to. I hope everyone has the same results I do! I was taking Gaba by itself prior and it didnt even compare to this. Plus your oddly quiet and calm inside the next day. Im not sure Ill need to take 2 pills at once. One does it for me. Maybe on the weekends Ill try 2 if I know I can monitor the next day affects. Pretty awesome stuff. You have nothing to lose in trying it as I said, for me its a great product. Works like a dream. Im curious if its affects will eventually wean down as I become tolerant. Being in Nursing I did my homework on all the ingredients and doses they used which are all in line and appropriate. I may then have to take two or cycle on and off to maintain its affectedness. We shall see. 10 stars! Review: Better than a sleep aid - This stuff WORKS. Though maybe TOO well, ha. I struggle with a racing heart in the mornings or waking up in the middle of the night with a racing heart. The suggested dose is 2 tablets. The tablets are huge. But they knock. Me. Out. I am “relaxed” in the morning - but mainly because I am so tired! lol. I tried also to just take one, and it helped a bit but it was still a drag to get out of bed. But it knocks me out and keeps me asleep. And no racing heart in the mornings! I am going to try to just take a half of one and see if that helps me not feel so groggy when I have to wake up so early. Or maybe take it mid afternoon instead of right before bed? ## Features - Serene Science Theanine Serene contains the amino acid L-theanine, to support relaxation and focused attention, and the calming neurotransmitter GABA. - Suggested Use: 2 tablets daily. - Suitable for vegetarians. Contains no yeast, dairy, egg, gluten, soy or wheat. Contains no sugar, preservatives or artificial color, flavor or fragrance. - Over 40 years of trust. source naturals was created in 1982 by ceo ira goldberg to support everyone’s potential to enjoy optimal health. - Manufactured in the USA. Manufactured in Scotts Valley, CA, under the Good Manufacturing Practices (cGMPs) established by the US Food and Drug Administration. (FDA) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000GFJJG0 | | Age Range Description | Adult | | Allergen Information | Dairy Free, Egg Free, Gluten Free, Soy Free, Wheat Free | | Best Sellers Rank | #21,357 in Health & Household ( See Top 100 in Health & Household ) #431 in Magnesium Mineral Supplements #1,680 in Sales & Deals | | Brand | Source Naturals | | Brand Name | Source Naturals | | Color | White | | Container Type | Bottle | | Customer Reviews | 4.5 out of 5 stars 1,675 Reviews | | Diet Type | Vegetarian | | Dosage Form | Tablet | | Flavor | Unflavored | | Global Trade Identification Number | 00021078017769 | | Item Dimensions | 1.3 x 1.3 x 1.6 inches | | Item Form | Tablet | | Item Weight | 1.6 ounces | | Manufacturer | Threshold Enterprises | | Manufacturer Part Number | SN1776 | | Material Features | No Artificial Colors, No Artificial Flavors, No Artificial Preservatives | | Material Type Free | Egg Free, Soy Free, Yeast Free, wheat Free | | Model Name | turals Serene Science L-Theanine with Magnesium and GABA - 120 Tablets | | Model Number | SN1776 | | Number of Items | 1 | | Primary Supplement Type | Magnesium | | Product Benefits | Relaxation,Soothing | | Recommended Uses For Product | Calming | | Special Ingredients | Magnesium, GABA, Taurine, L-Theanine, Holy Basil Leaf Extract. | | Total Servings Per Container | 60 | | UPC | 021078017769 | | Unit Count | 120 Count | ## Product Details - **Brand:** Source Naturals - **Diet Type:** Vegetarian - **Flavor:** Unflavored - **Item Form:** Tablet - **Item Weight:** 1.6 ounces - **Item dimensions L x W x H:** 1.3 x 1.3 x 1.6 inches - **Primary Supplement Type:** Magnesium - **Product Benefits:** Relaxation,Soothing - **Special Ingredients:** Magnesium, GABA, Taurine, L-Theanine, Holy Basil Leaf Extract. - **Unit Count:** 120 Count ## Images ![Source Naturals Serene Science Theanine Serene with Magnesium - 120 Tablets | Support Calim Mind & Body* - Image 1](https://m.media-amazon.com/images/I/71N1LYctJbL.jpg) ## Available Options This product comes in different **Size, Item Package Quantity** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Wow. Just wow! *by G***G on August 16, 2023* I like most have some stress and along with it comes random but steady sleep disturbances. Tried L- Tryptophan, Melatonin, Tylenol PM, warm milk, and a host of other things over time. Not much luck sadly. But thats just me. Tried this to add to my barrage of attempts. Pretty powerful to say the least. Yes the pills are big but they snap in half with ease. I did half the dose- so 1 pill at first to see. I couldn't believe how I felt. I mean again- THIS IS MY EXPERIENCE ONLY and maybe Im deficient in Taurine or whatever else thats in it or who knows what else as I havent been eating much anyways to get proper nutrients and aminos so that could be it- perhaps its the ingredients combined? Who knows…but I was actually sorta stoned within an hour of taking it. I sat laughing at the dumbest videos for 2 hours. I felt like a kid. I was yawning by 1.5 hrs and almost crashing but in a good way. I woke up 5 hrs later amazed I had actually fallen into a solid sleep phase. Im normally up every couple of hrs because my brains on overtime. I thought - wow I didnt even take a full dose! It was still early morning so I decided to take another half of one. Quick snap and swallow. The half a pill size is perfect. Within another half hour- off to la la land yet again. It sorta reminded me of when I used to take prescription Ambian. Id highly suggest it to be taken at bed time or at a time your able to rest. Im not groggy at all the next day. But I am a weird calm. I can honestly say its a strange soothing washing over me that I feel. Like staring out at the ocean. Serene. Wholeness. Thats pretty amazing considering its all natural. I think I will order a few bottles to keep on hand to stock up. I have suggested this to a few friends already. If you feel like your going to explode or implode from your life and struggle to relax- you should really try this formula. Id recommend half dosing till you know how itll affect you, and certainly dont plan on doing many activities lol. Dont drive on this. Read the warnings if you take Lithium. Which I dont. I did try other “herbal” smokes prior to this that also did not work- but I would not mix anything with this. Its a very powerful concoction. Atleast for me. I simply love its affects. Relaxation and sleep have been given back to me and Im grateful! Ill probably throw out half the older bottles of stuff Ive tried that did not work now. You have nothing to lose. Its cost is great especially when its on sale to. I hope everyone has the same results I do! I was taking Gaba by itself prior and it didnt even compare to this. Plus your oddly quiet and calm inside the next day. Im not sure Ill need to take 2 pills at once. One does it for me. Maybe on the weekends Ill try 2 if I know I can monitor the next day affects. Pretty awesome stuff. You have nothing to lose in trying it as I said, for me its a great product. Works like a dream. Im curious if its affects will eventually wean down as I become tolerant. Being in Nursing I did my homework on all the ingredients and doses they used which are all in line and appropriate. I may then have to take two or cycle on and off to maintain its affectedness. We shall see. 10 stars! ### ⭐⭐⭐⭐⭐ Better than a sleep aid *by A***E on July 18, 2026* This stuff WORKS. Though maybe TOO well, ha. I struggle with a racing heart in the mornings or waking up in the middle of the night with a racing heart. The suggested dose is 2 tablets. The tablets are huge. But they knock. Me. Out. I am “relaxed” in the morning - but mainly because I am so tired! lol. I tried also to just take one, and it helped a bit but it was still a drag to get out of bed. But it knocks me out and keeps me asleep. And no racing heart in the mornings! I am going to try to just take a half of one and see if that helps me not feel so groggy when I have to wake up so early. Or maybe take it mid afternoon instead of right before bed? ### ⭐⭐⭐⭐⭐ My all-time favorite anxiety reliever *by H***E on April 2, 2026* I cant tell you how many people I've offered this to at work. This puts me in the BEST mood at work. This stuff relaxes me so my authentic self shines through. I stay productive at work...unloading freight trucks and I unwind quicker when I come home. This formula has never let me down. Bad things don't stick....like water off a ducks back. You will NOT be disappointed. The pills are huge so I chew 2 and Im off to a great day. They have no taste and break down fast. Just do it. You will be shocked how tolerant and resilient you become. ## Frequently Bought Together - Source Naturals Serene Science L-Theanine with Magnesium and GABA - 120 Tablets - Source Naturals Serene Science GABA, for a Calm Mind, 750mg - 180 Capsules - Source Naturals Theanine Serene with Relora, Calm Mind and Body* - 120 Tablets --- ## 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.us/products/1864781-source-naturals-serene-science-theanine-serene-with-magnesium-120-tablets](https://www.desertcart.us/products/1864781-source-naturals-serene-science-theanine-serene-with-magnesium-120-tablets) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-09-09*