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Source Naturals   Theanine Serene™ - 30 Tablets

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20 Reviews

"Theanine Serene is a good nighttime pill. Theanine Serene made me relaxed and fe..."  Read all reviews

Item Number: SN2595
Serving Size: 2 Tablets Servings per Container: 15
Price per Serving:  $0.43 Price per Unit*: $0.22 per Tablet
* Price Per Unit may reflect product's price per capsule, tablet, ounce, fluid ounce, etc.
71 In Stock.

This item will ship tomorrow.

Regular Price:  $9.25 $6.48
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In this fast paced world‚ everyone suffers from stress related to work‚ school‚ relationships etc. Theanine Serene™ 30 Tablets from Source Naturals may help ease the tension. It contains L-theanine‚ an amino acid that could possibly reduce mental and physical stress‚ and improve cognitive performance.

Studies show that it could boost the amount of the feel-good hormone your body makes‚ hence relieving anxiety. L-Theanine is an important constituent of green tea and is now used in various foods including chocolates‚ soft drinks‚ and herbal teas.

Theanine Serene™ 30 Tablets from Source Naturals also contains taurine‚ which is essential for good cardiovascular function‚ development‚ and function of skeletal muscle‚ the retina‚ and the central nervous system. The supplement contains Gamma-Aminobutyric Acid (GABA)‚ a neurotransmitter. Researchers think that GABA may boost your mood and have a calming‚ relaxing effect on the nervous system. It may also promote lean muscle growth‚ burn fat‚ stabilize blood pressure‚ and help relieve pain.

This supplement also contains magnesium‚ which may be essential for muscle and nerve relaxation and overall wellness.

The holy basil leaf is believed to soothe away the tension in your body. These stress busters are suitable for vegetarians. The Theanine Serene™ 30 Tablets from Source Naturals contains no yeast‚ dairy‚ egg‚ gluten‚ soy‚ wheat‚ sugar‚ starch‚ salt‚ preservatives‚ artificial color‚ flavor‚ or fragrance.

These statements have not been evaluated by the Food and Drug Administration (FDA). These products are not meant to diagnose‚ treat or cure any disease or medical condition. Please consult your doctor before starting any exercise or nutritional supplement program or before using these or any product during pregnancy or if you have a serious medical condition.

  • MFG # SN1774
  • UPC # 021078017745
Official Website:

Serving Size: 2 Tablets
Servings Per Container: 15

Amount Per Serving / % DV

Calories 5
Total Carbohydrate 1g / <1%*
Magnesium (as magnesium chelate) 300mg / 75%
GABA 500mg / **
Taurine 500mg / **
L-Theanine 200mg / **
Holy Basil leaf Extract 100mg / **

*Percent Daily Values (DV) are based on a 2‚000 calorie.
**Daily Value not established.

Other Ingredients:
Sorbitol‚ stearic acid‚ modified cellulose gum‚ and silica.

2 tablets daily.

If you are pregnant‚ may become pregnant‚ or breastfeeding‚ or taking any medication including antidepressant drugs such as MAOIs‚ SSRIs‚ or other neuropsychiatric drugs or supplements such as St. John's wort‚ consult your health care professional before using this product. Excessive consumption may impair ability to drive or operate heavy equipment. Not recommended for consumption with alcoholic beverages.
Do not use if either tamper-evident seal is broken or missing. Keep out of the reach of children.Suitable for vegetarians.

  • Dairy Free
  • Egg Free
  • Gluten Free
  • Salt Free
  • Soy Free
  • Starch Free
  • Sugar Free
  • Vegetarian
  • Wheat Free
  • Yeast Free

Ratings and Reviews

Write a Review
  • 4.9
5 20
  • 20 Reviews
    • Works great for me

      from Florida on 2/09/2022
      I sleep better and wake feeling rested
      review-checkI would recommend this item to a friend.
    • Love it

      from SC on 10/06/2021
      Works to lower anxiety. I take it in the morning and before sleep to relax better.


      It works!


      review-checkI would recommend this item to a friend.
    • I like it!

      from Southern California on 7/16/2021
      I like Serene Science Theanine Serene because it has a potent "cocktail" of ingredients that are effective on their own, but seem more so together. The l-theanine is proven to have a calming effect, but when I take it with caffeine, it often improves my focus. The holy basil extract is a potent anti-inflammatory and adaptogen. And the magnesium is tops for relaxation and keeping things moving through the digestive tract.
      review-checkI would recommend this item to a friend.
    • Verified Buyer

      Great for light sleepers

      from Rego Park NY on 10/31/2020
      Helps me fall asleep quicker, and helps me to sleep through the night.


      Works pretty quickly.


      review-checkI would recommend this item to a friend.
    • Verified Buyer

      Helpful for Sleep and Anxiety

      from Western New York area on 4/04/2020
      This product is helpful for sleep and anxiety because it contains a number of supplements in two tablets. I also add Magnesium and melatonin and Taurine




      Tablets are large
      review-checkI would recommend this item to a friend.
    • Verified Buyer


      from Michigan on 3/02/2020
      I have adrenal issues. I take this to help me relax and sleep at night. I was taking this with Brain Calm, and when I ran out of Brain Calm, I didn't notice a difference; but if I don't take Theanine Serene, I won't sleep! So this is obviously the one that helped. I have also taken them in split doses (one in the morning and one at night), rather than both at night. It is helpful in the daytime as well, and doesn't make me tired during the day.


      I can sleep when I take it; and when I do get up during the night, I go back to sleep rather than lie there.


      I wish it didn't have sorbitol in it.
      review-checkI would recommend this item to a friend.
    • Verified Buyer

      Reliable relaxation

      from Maine on 12/06/2019
      I've been using Theanine Serene for close to 4 years. I use it as needed at bedtime to alleviate physical and mental tension. I often toss and turn, and on the nights that I use this supplement, I fall back to sleep much more quickly - and I don't have a jolt of panic when I wake up. I have also taken it during the day, 15 mins before doing something that would normally make me mildly anxious (e.g. phone conference with my boss), and I felt settled and receptive. Every batch that I've ordered has worked consistently.


      Effective quickly Have not gained a tolerance


      Pills are a bit large.
      review-checkI would recommend this item to a friend.
    • Verified Buyer

      Helps sleep!

      from PORTLAND OR on 1/25/2018
      I just love this Serene Science Theanine Serene by Source Naturals product for a good night's sleep! It has a good combination of different ingredients that make it more effective.


      It really works well to help me relax.


      Cost is too high
      review-checkI would recommend this item to a friend.
    • Verified Buyer

      Sleep well

      from Texas on 5/31/2016
      Theanine Serene by Source Naturals has a very good combination of ingredients to help you get the rest your body needs. I've been taking it for over a year without any ill side effects and will continue to take it. It works well for me and I highly recommend it.


      Source naturals is a trusted brand.


      Tablet is large but chewable.
      review-checkI would recommend this item to a friend.
    • Excellent deal!

      from CO on 5/04/2016
      Mailed quickly. Theanine Serene by Source Naturals is the best bang for your buck!
      review-checkI would recommend this item to a friend.
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Additionally, PureFormulas is unable to directly recommend products in relation to specific health conditions. Please contact your trusted healthcare practitioner for direct product recommendations.

If you have any general questions regarding orders or our policies and programs, please contact our Customer Happiness Team @ 1.800.383.6008

If you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use. Your healthcare professional is the best source for guidance before beginning an exercise or nutritional supplement program.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

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