--- product_id: 23498861 title: "Serene Science L-Theanine with Magnesium and GABA - 60 Tablets" brand: "source naturals" price: "€ 25.61" currency: EUR in_stock: true reviews_count: 8 category: "Source Naturals" url: https://www.desertcart.gr/products/23498861-serene-science-l-theanine-with-magnesium-and-gaba-60-tablets store_origin: GR region: Greece --- # Vegetarian & allergen-free clean formula Supports restful sleep cycles naturally 100mg L-Theanine per serving for focused calm Serene Science L-Theanine with Magnesium and GABA - 60 Tablets **Brand:** source naturals **Price:** € 25.61 **Availability:** ✅ In Stock ## Summary > 🌊 Ride the wave of calm with Serene Science—because your mind deserves a vacation. ## Quick Answers - **What is this?** Serene Science L-Theanine with Magnesium and GABA - 60 Tablets by source naturals - **How much does it cost?** € 25.61 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/23498861-serene-science-l-theanine-with-magnesium-and-gaba-60-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 - • **Pure & Clean Wellness:** Free from gluten, dairy, soy, and artificial additives—crafted for mindful health. - • **Sleep Like You Mean It:** Experience improved sleep quality and faster sleep onset—wake up refreshed and ready. - • **Tailored Dosage Flexibility:** Easy-to-split tablets let you customize your calm—perfect for busy professionals balancing stress. - • **Trusted Legacy, Made in USA:** Over 35 years of quality assurance from Source Naturals, manufactured in California. - • **Calm Your Mind, Own Your Day:** Clinically-backed L-Theanine and GABA combo promotes deep relaxation without grogginess. ## Overview Serene Science L-Theanine by Source Naturals delivers a potent blend of 100mg L-Theanine, GABA, and magnesium in a clean, vegetarian tablet designed to support relaxation, focus, and restful sleep. Free from common allergens and artificial ingredients, this trusted formula is manufactured in the USA and offers flexible dosing to fit your lifestyle. Ideal for professionals seeking natural stress relief and enhanced mental clarity without next-day grogginess. ## Description Buy Source Naturals Serene Science L-Theanine with Magnesium and GABA - 60 Tablets 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: Great for adult ADHD - Works within 15 minutes if taken at bedtime, it helps with sleeping. I take it as needed not daily. great for focusing and calm the body down completely , love this supplement ## Features - Source Naturals 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. - TRUSTED FOR OVER 35 YEARS. Source Naturals was created in 1982 by CEO Ira Goldberg to support each individual's potential to enjoy optimal health. - MANUFACTURED IN THE USA. Our facility is located in Scotts Valley California. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000Q47QBQ | | Age Range Description | Adult | | Allergen Information | Dairy Free, Egg Free, Gluten Free, Soy Free, Wheat Free | | Best Sellers Rank | #19,927 in Health & Household ( See Top 100 in Health & Household ) #376 in Magnesium Mineral Supplements #1,747 in Sales & Deals | | Brand | Source Naturals | | Brand Name | Source Naturals | | Container Type | Bottle | | Customer Reviews | 4.4 out of 5 stars 1,626 Reviews | | Diet Type | Vegetarian | | Dosage Form | Tablets | | Flavor | Unflavored | | Global Trade Identification Number | 00021078017752 | | Item Dimensions | 2.21 x 2.21 x 3.94 inches | | Item Form | Tablet | | Item Height | 3.94 inches | | Item Weight | 0.27 Pounds | | Manufacturer | Source Naturals | | 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 - 60 Tablets | | Number of Items | 1 | | Primary Supplement Type | GABA | | Product Benefits | Stress Support | | Special Ingredients | GABA, L-Theanine, Holy Basil Leaf Extract, and Magnesium | | Total Servings Per Container | 30 | | UPC | 021078017752 | | Unit Count | 60.0 Count | ## Product Details - **Brand:** Source Naturals - **Diet Type:** Vegetarian - **Flavor:** Unflavored - **Item Form:** Tablet - **Item Weight:** 0.27 Pounds - **Item dimensions L x W x H:** 2.21 x 2.21 x 3.94 inches - **Primary Supplement Type:** GABA - **Product Benefits:** Stress Support - **Special Ingredients:** GABA, L-Theanine, Holy Basil Leaf Extract, and Magnesium - **Unit Count:** 60.0 Count ## Images ![Serene Science L-Theanine with Magnesium and GABA - 60 Tablets - Image 1](https://m.media-amazon.com/images/I/7115Rs1eW5L.jpg) ## Available Options This product comes in different **Size, Item Package Quantity** options. ## Questions & Answers **Q: Does anyone make this formula gluten-free?** A: This product is gluten-free. **Q: Whats the difference between these and the l theanine serene with relora?** A: I used this product with great results for several years and then tried the version with Relora. I accidentally and unbeknownst to me, reordered but received the version without Relora. I kept getting the urge to nibble and snack in the evening, and that's when I discovered my refill didn't contain Relora which is known for reducing the urge to snack. Well, I discovered that in fact it does and in spite of the fact that I take 2 in the late morning and it's eliminated the urge to snack in the evening. I never noticed any dozyness or sleepy daytime effects. I do notice the irritation and irritability greatly reduced, as is my anxiety over Covid19 and the lockdown isolation depression is much improved. I highly recommend this product, and buy it with Relora if nervous snacking or grazing are issues. **Q: How many mm in each capsule?** A: Each 2 tablet serving currently contains 300 mg of Magnesium (as magnesium amino acid complex),500 mg GABA (gamma-aminobutyric acid), 450 mg of Taurine, 200 mg of L-Theanine, and 100 mg of Holy Basil Leaf Extract. **Q: why does the product description say that it contains wheat/gluten but the picture of the bottle label lists wheat and gluten in the "not contained"?** A: Sounds like a mistake to me. My bottle says that it contains no wheat. If I needed to know, I would call the company and ask. "Phone (800) 815-2333 Monday - Friday 8am - 4:30pm PST" ## 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! ### ⭐⭐⭐⭐⭐ Great for adult ADHD *by M***Y on January 21, 2026* Works within 15 minutes if taken at bedtime, it helps with sleeping. I take it as needed not daily. great for focusing and calm the body down completely , love this supplement ### ⭐⭐⭐⭐⭐ Helps me sleep *by M***S on January 4, 2026* Great for a restful sleep! ## Frequently Bought Together - Source Naturals Serene Science L-Theanine with Magnesium and GABA - 60 Tablets - Source Naturals Serene Science GABA, 125 mg, Orange Flavored* - 30 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.gr/products/23498861-serene-science-l-theanine-with-magnesium-and-gaba-60-tablets](https://www.desertcart.gr/products/23498861-serene-science-l-theanine-with-magnesium-and-gaba-60-tablets) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-04-25*