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Source Naturals

Theanine Serene

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In Stock
60 Tabs
Gluten Free
  • Calming complex

  • With GABA, taurine, l-theanine & holy basil

  • Suitable for vegetarians

Source Naturals Theanine Serene delivers the amino acid L-theanine, to support relaxing brain wave activity, and taurine to ease tension, as well as the calming neurotransmitter GABA. It also features magnesium to support muscle and nerve relaxation, and calming holy basil leaf extract to gently soothe away the tension in your body. Try Theanine Serene to start relaxing today.

This product contains no yeast, dairy, egg, gluten, soy, wheat, sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.

Product Label

Supplement Facts

Serving Size 2 Tablets

Servings Per Container 30

  Amount Per Serving % Daily Value
Calories 5  
Total Carbohydrate 1 g <1%*
Magnesium (as magnesium chelate) 300 mg 75%
GABA 500 mg
Taurine 500 mg
L-Theanine 200 mg
Holy Basil Leaf Extract 100 mg

*Percent Daily Values are based on a 2000 calorie diet.

†Daily Value not established.

Other ingredients: Sorbitol, stearic acid, modified cellulose gum, and silica.

Suggested Use: 2 tablets daily.

WARNING: If you are pregnant, may become pregnant, or breastfeeding, or taking any medication including antidepressant drugs such as MAOI’s, SSRI’s, or other neuropsychiatric drugs or supplements such as St. John’s wort, consult your healthcare professional before using this product. Excessive consumption may impair ability to drive or operate heavy equipment. Not recommended for consumption with alcoholic beverages. Keep out of the reach of children.

Suitable for vegetarians. Contains no yeast, dairy, egg, gluten, soy or wheat. Contains no sugar, starch, salt, preservatives or artificial color, flavor or fragrance.

Terms and Ingredient Definitions

Source Naturals Theanine Serene Reviews

Summary of Customer Ratings & Reviews

Customer Ratings & Reviews

Theanine Serene 5 5 5 5
Best sleep formula Tried melatonin and tryptophan and got some help falling asleep, then tried theanine and thought it was much better. When I went to re-order Swanson had Source Natural Theanine Serene suggested on the side. While the cost was more, the ingredient combination looked interesting. Two of these will allow you to fall asleep and wake up okay. The other supplements when two are taken the wake up and first hours are groggy. July 22, 2013
Great promoting Calm and Balance If you want something that will keep your nerves in healthy calm totally NATURALLY, after and even before the stressors attack, and at the same time your head sharp and clear, this will do it. A great find from Source Natural and great price through Swansons, a great combo of L'Theanine, Taurine, MG, GABA etc.all in one chewable place. March 3, 2013
Great combination To help you stay relaxed and calm. April 21, 2012
Helps a Lot This was recommended by my naturopath, based on daily circumstances beyond my control. I can tell you after I take 1 or 2, I feel normal- not sedated or tired. Highly recommend for difficult times. And as always, Swanson prices and customer service are the best! January 12, 2012
Better Sleep I take one or two (depending on how active my mind is) in the evening an hour before retiring. Seems to make it much easier to fall asleep and stay asleep. November 24, 2011
1-5 of 5

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