







🌊 Ride the wave of calm with Serene Science—because your mind deserves a vacation.
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.















| 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 |
G**G
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!
M**Y
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
M**S
Helps me sleep
Great for a restful sleep!
M**M
Great product, but with a side effect.
I purchased this mostly because of my insomnia and sleep issues that I had since I was a child. This product for sure helps with that. I can feel the effects about 20mins to 1 hour in. I get really relaxed, less stress, less anxiety and ready for bed. The one issue though, and this can be a me thing. It makes my poop horrible. I'm not talking smell but texture and color. When taking this (Please excuse the words in the next part) it makes my poop very muddy and black. When I stopped taking it the next few days my poop returned to normal. Solely because of that I have to remove a star because I'm not sure I want to continue taking this. Its a mess lol.
O**?
Helps!
My kids (19&17) use this to help them sleep. My son has autism and adhd and this helps get a full nights rest. He doesn’t wake up groggy the next morning either. My daughter has ADHD and also uses it when she is stressed and having a hard time sleeping. No side effects. If you have problems going to sleep it helps a lot!
A**G
Make me lethargic
I had high hopes for this supplement as it contains Gaba, L-theanine AND Magnesium. Not sure if it's the Magnesium, but this supplement makes me lethargic or somewhat sleepy, which is OK to take at night I guess, but I bought it to help with occasional jitters or nervous tension during the day. The tablets are big, but I don't find them hard to swallow. They do help with constipation, but it wasn't its intended use.
L**K
Help helps me get to sleep faster
Helps this insomniac get to sleep easier.
M**O
Helps Round Out My Nootropic Stack & My Mood!
So my Theanine Serene arrived in the mail today.. WOW. I’m impressed. I’ve been using suntheanine by Solgar for awhile now as part of my caffeine + L-Theanine nootropic stack for steady focus and concentration. For those uninitiated, L-theanine is a nonessential amino acid found almost exclusively in the camellia sinensis plant (green tea). It helps to counteract the negative effects of caffeine by calming the excitatory neurotransmitters in the brain that cause anxiety. So, I found the Solgar brand to be very subtle and it took a few days to really kick in, and even when it did the effect was negligible unless I took up to 300mg twice a day and that was on top of also taking Alpha BRAIN which contains 200mg of theanine as well. I can say after about a half hour of taking Theanine Serene I was so super chilled out. I went to work a couple hours later and nothing seemed to phase me, which is a big deal considering what a high stress environment it is. To me; that’s all the proof I need. I’ve researched everything in it: magnesium, GABA, taurine, theanine, and Holy Basil leaf. That’s why I decided to go with this particular brand; because it combines so many elements which act upon GABA brain receptors towards the same effect. So it’s a multi-pronged attack. I imagine that’s why it’s so effective. OF COURSE something to remember is that 1.) These are supplements that you may or may not already be partially procuring through diet already and so therefore may have some degree of tolerance if you experiment with them. And 2.) Individual physiology differs from person to person (weight, metabolism, age, etc.) dictates how you’ll react. If anyone reads this and decides to give it a chance, give it a week at least or more based on the aforementioned variables to allow the components to pass the blood/brain barrier and saturate your receptors.
Trustpilot
3 weeks ago
1 week ago