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Natural ingredients: suntheanine is a pure source of L-Theanine, an amino acid found in green tea and processed for maximum calming effects. Calm and focused: promotes calmness and helps stimulate an overall sense of relaxation; Perfect for working through daytime stress and relaxing at night.


Natural ingredients: suntheanine is a pure source of L-Theanine, an amino acid found in green tea and processed for maximum calming effects. Two capsules: take 1-2 times daily; Vegan, non-GMO, non-habit-forming and free of gluten and soy.

This amino acid found naturally in tea helps support healthy stress response, relaxation, focus and memory.
L-theanine may also help reduce the negative effects of caffeine. Suntheanine may normalize the body’s stress response and condition the body to handle stressful situations better. Suntheanine - l-theanine is an agent that is used for nervousness and tension by supporting mental tranquility. Supports brain health - l-theanine is a powerful amino acid that enhances cognitive performance and alertness.

Sleep soundly, regularly: calms the nerves and encourages a deeper, uninterrupted rest; Helps support a healthy sleep cycle to reduce occasional sleeplessness.

Stress management*/promotes relaxation*: Promotes relaxation without the drowsiness or negative side effects associated with other calming agents.


Neurologically active amino acid: Theanine is a unique amino acid found almost exclusively in green tea that exerts beneficial effects on brain metabolism. Superior nutrition and formulation: the goal of jarrow Formulas is to promote optimal health with high-quality, effective, value, and superior formulation of dietary supplements; Our customers can be assured of purity, affordable, and potency.

Stress management*/promotes relaxation*: L-Theanine promotes relaxation while maintaining alertness and promotes healthy cognitive function. *. Gmp quality assured: npa a-rated gmp certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods for stability, potency, and product formulation.
During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers' recommendations, when provided. Classifications/certifications: non-gmo, Nut Free, Soy Free, Made without Gluten, Egg Free, Kosher, dairy Free, Vegan/Vegetarian. Packaged in the usa by a family owned and operated company since 1968.

1. Natural Factors
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Stress-Relax Chewable Suntheanine L-Theanine 100 mg by Natural Factors, Tropical Fruit Flavor, 120 Tablets 60 Servings, Non-Drowsy Stress Support for Mental Calmness and Relaxation
#adNatural Factors #ad - Non-drowsy peace of mind: feel calm and stay sharp with help from 100 mg of natural L-theanine in a delicious chewable; Fast-acting support for physical and mental relaxation.Natural ingredients: suntheanine is a pure source of L-Theanine, an amino acid found in green tea and processed for maximum calming effects. Calm and focused: promotes calmness and helps stimulate an overall sense of relaxation; Perfect for working through daytime stress and relaxing at night.
More information #ad
Two tablets: take up to 3 times daily; Vegan, non-GMO, non-habit forming and free of gluten and soy; Tropical flavored. Third-party certified: independently tested for GMOs and over 700 contaminants using advanced technology such as mass spectrometry to ensure purity and potency.Brand | Natural Factors #ad |
Manufacturer | Natural Factors #ad |
Height | 4.75 Inches |
Length | 3.06 Inches |
Weight | 0.35 Pounds |
Width | 3.06 Inches |
Part Number | 2837 |
Model | 2837 |
More information #ad
2. Sports Research
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60 Liquid Softgels, Suntheanine® L-Theanine 200mg Double-Strength in Cold-Pressed Organic Coconut Oil; Non-GMO & Gluten Free
#adSports Research #ad - If you're not thrilled with our L-theanine simply return it to us for a refund See below for details^. Igen non-gmo verified & formulated without Hexane, Artificial Colorings, Gluten, Soy, Stearates Or Titanium Dioxide. The only l-theanine encapsulated in fast-acting liquid softgel capsule.More information #ad
Formulated with Extra Virgin Organic Coconut Oil. Suntheanine l-theanine is clinically proven to promote an alert state of relaxation without drowsiness, as indicated by an increase in Alpha brain waves *. Your satisfaction means everything to our company.Brand | Sports Research #ad |
Manufacturer | Sports Research #ad |
Height | 2.2 Inches |
Length | 4.1 Inches |
Weight | 0.03 Pounds |
Width | 2.2 Inches |
Part Number | FG154A |
Model | 023249010173 |
More information #ad
3. Natural Factors
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Non-Drowsy Stress Support for Mental Calmness and Relaxation, 60 capsules 30 servings, Stress-Relax Suntheanine L-Theanine 125 mg by Natural Factors
#adNatural Factors #ad - Non-drowsy peace of mind: feel calm and stay sharp with help from 125 mg of natural L-theanine; Fast-acting support for physical and mental relaxation.Natural ingredients: suntheanine is a pure source of L-Theanine, an amino acid found in green tea and processed for maximum calming effects. Two capsules: take 1-2 times daily; Vegan, non-GMO, non-habit-forming and free of gluten and soy.
More information #ad
Third-party certified: independently tested for GMOs and over 700 contaminants using advanced technology such as mass spectrometry to ensure purity and potency. Calm and focused: promotes calmness and helps stimulate an overall sense of relaxation; Perfect for working through daytime stress and relaxing at night.Brand | Natural Factors #ad |
Manufacturer | Natural Factors #ad |
Height | 3.87 Inches |
Length | 2.19 Inches |
Weight | 0.1 Pounds |
Width | 2.19 Inches |
Part Number | 4830 |
Model | 4830 |
More information #ad
4. Doctor's Best
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Non-GMO, Helps Reduce Stress & Sleep, Doctor's Best L-Theanine Contains Suntheanine, 150 mg 90 Veggie Caps DRB-00197, Vegan, Gluten Free
#adDoctor's Best #ad - Calmness – l-theanine supports relaxation and a sense of calm without causing drowsiness or loss of focus. L-theanine may help improve quality of sleep, learning performance, concentration and help support the immune system. During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers' recommendations, when provided.This amino acid found naturally in tea helps support healthy stress response, relaxation, focus and memory.
More information #ad
L-theanine helps promote a healthy mood and a restful relaxed state while maintaining daytime alertness. Doctor’s best l-theanine contains suntheanine, a pure form of L-Theanine on the market produced via a patented process that mimics the natural process in green tea leaves. L-theanine may also help reduce the negative effects of caffeine. Suntheanine may normalize the body’s stress response and condition the body to handle stressful situations better. Suntheanine - l-theanine is an agent that is used for nervousness and tension by supporting mental tranquility. Supports brain health - l-theanine is a powerful amino acid that enhances cognitive performance and alertness.
Brand | Doctor's Best #ad |
Manufacturer | Doctor's Best #ad |
Height | 3.69 Inches |
Length | 2.13 Inches |
Weight | 0.03 Pounds |
Width | 2.13 Inches |
Part Number | DRB-00197 |
Model | DRB-00197 |
More information #ad
5. Natural Factors
#ad
Stress-Relax Chewable Tranquil Sleep by Natural Factors, Sleep Aid, 120 tablets 60 servings, Tropical Fruit Flavor
#adNatural Factors #ad - Two tablets: chew at bedtime or as directed by a health professional; Vegan, non-GMO, non-habit-forming and free of gluten and soy; Tropical flavored. A good night' s rest: our advanced, non-habit-forming blend of natural ingredients helps prepare you for a refreshing and rejuvenating sleep without morning grogginess.Sleep soundly, regularly: calms the nerves and encourages a deeper, uninterrupted rest; Helps support a healthy sleep cycle to reduce occasional sleeplessness.
More information #ad
Third-party certified: independently tested for GMOs and over 700 contaminants using advanced technology such as mass spectrometry to ensure purity and potency. A natural sleep aid: contains suntheanine L-Theanine 200 mg, 5-HTP 30 mg and melatonin 3 mg to support every stage of slumber.Brand | Natural Factors #ad |
Manufacturer | Natural Factors #ad |
Height | 4.77 Inches |
Length | 3.09 Inches |
Weight | 0.5 Pounds |
Width | 3.09 Inches |
Part Number | 2843 |
Model | 2843 |
More information #ad
6. NOW
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60 Veg Capsules, Stress Management*, L-Theanine 200 mg with Inositol, NOW Supplements
#adNOW #ad - Classifications/certifications: Vegan, Kosher, Non-GMO. Packaged in the usa by a family owned and operated company since 1968. During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers' recommendations, when provided.Stress management*/promotes relaxation*: Promotes relaxation without the drowsiness or negative side effects associated with other calming agents.
More information #ad
*. Gmp quality assured: npa a-rated gmp certification means that every aspect of the NOW manufacturing process has been examined, potency, including our laboratory/testing methods for stability, and product formulation. Healthy vascular function*/with inositol: Formulation includes inositol, a member of the B-vitamin family that is essential for brain and nervous system health. *.Brand | NOW #ad |
Manufacturer | Now Foods #ad |
Height | 3.44 Inches |
Length | 1.88 Inches |
Weight | 0.1 Pounds |
Width | 1.88 Inches |
Part Number | 0147 |
Model | 0147 |
More information #ad
7. EZ Melts
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60 Fast Dissolve Tablets, Sublingual Vitamins, Vegan, Natural Cherry Flavor, EZ Melts L-Theanine, Zero Sugar, 200 mg
#adEZ Melts #ad - Promotes relaxation without drowsiness. Helps in calming nervous tension. 60 fast melting tablets with "Sweet Cherry" flavor. Made in the usa: zero sugar, natural Flavors, natural sweeteners, Non-GMO, Gluten-Free, Vegan, Natural Colors. L-theanine supports reduced stress levels.More information #ad
Brand | EZ Melts #ad |
Manufacturer | EZ Melts #ad |
Part Number | madfs-541 |
More information #ad
8. Jarrow Formulas
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Found in Green Tea, Neurologically Active Amino Acid, 60 Veggie Caps, Jarrow Formulas Theanine 100 mg, Up to 60 Servings, Promotes Relaxation
#adJarrow Formulas #ad - Veggie caps: take one veggie capsule once or twice per day with water or juice on an empty stomach or as directed by your qualified healthcare professional; This formula is suitable for vegans and vegetarians.Neurologically active amino acid: Theanine is a unique amino acid found almost exclusively in green tea that exerts beneficial effects on brain metabolism. Superior nutrition and formulation: the goal of jarrow Formulas is to promote optimal health with high-quality, effective, value, and superior formulation of dietary supplements; Our customers can be assured of purity, affordable, and potency.
More information #ad
Relaxation and pleasure: theanine induces relaxation without causing drowsiness, as measured by increased generation of alpha-waves; Theanine may improve sensations of pleasure by affecting dopamine and serotonin neurotransmitters in the brain.Brand | Jarrow Formulas #ad |
Manufacturer | Jarrow Formulas #ad |
Height | 3.94 Inches |
Length | 3.94 Inches |
Weight | 0.09 Pounds |
Width | 3.94 Inches |
Part Number | THE |
Model | THE |
More information #ad
9. NOW
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90 Veg Capsules, NOW Supplements, Stress Management*, L-Theanine 100 mg with Decaf Green Tea
#adNOW #ad - Healthy vascular function*/with decaf green tea: L-Theanine may also support healthy vascular function through this relaxing effect. It is a unique amino acid found naturally in the tea plant Camellia sinensis.Stress management*/promotes relaxation*: L-Theanine promotes relaxation while maintaining alertness and promotes healthy cognitive function. *. Gmp quality assured: npa a-rated gmp certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods for stability, potency, and product formulation.
More information #ad
During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers' recommendations, when provided. Classifications/certifications: non-gmo, Nut Free, Soy Free, Made without Gluten, Egg Free, Kosher, dairy Free, Vegan/Vegetarian. Packaged in the usa by a family owned and operated company since 1968.
Brand | NOW #ad |
Manufacturer | Now Foods #ad |
Height | 4 Inches |
Length | 6 Inches |
Weight | 0.18 Pounds |
Width | 5 Inches |
Part Number | 0145 |
Model | 0145 |
More information #ad
10. NOW
#ad
90 Chewables, Tension Management*, L-Theanine 100 mg with Inositol and Taurine, NOW Supplements
#adNOW #ad - During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers' recommendations, when provided. With inositol and Taurine. Healthy Vascular Function*.More information #ad
Packaged in the usa by a family owned and operated company since 1968. Promotes Relaxation*. Gmp quality assured: npa a-rated gmp certification means that every aspect of the NOW manufacturing process has been examined, potency, including our laboratory/testing methods for stability, and product formulation.Brand | NOW #ad |
Manufacturer | NOW Sports - Nutrition and Wellness #ad |
Height | 3.44 Inches |
Length | 1.88 Inches |
Weight | 0.07 Kilograms |
Width | 1.88 Inches |
Part Number | 0144 |
Model | 0144 |
More information #ad