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L-Theanine 200 mg 60 caps by Integrative Therapeutics
Integrative TherapeuticsL-Theanine by Integrative Therapeutics provides L-theanine, an amino acid found naturally in green tea. L-theanine from a non-drowsy formula Suppor...
View full detailsLiposomal L-Theanine 2 fl oz by NutriDyn
NutriDynNutriDyn's Liposomal L-Theanine is an easy-to-take, great-tasting supplement that helps ease anxiety and stress. Liposomal L-Theanine can help you ...
View full detailsL-Theanine 400 mg by Pure Encapsulations
Pure EncapsulationsL-Theanine by Pure Encapsulations contains a powerful and distinctive amino acid found in green tea, recognized over the years for its relaxing and...
View full detailsL-Theanine Pro 200 mg 60 Capsules By NutriDyn
NutriDynNutriDyn's L-Theanine Pro contains L-theanine, a naturally occurring amino acid found in green tea leaves. L-theanine has been shown to have a numb...
View full detailsL-Theanine 100 mg 60 caps by Klaire Labs/SFI Health
Klaire LabsL-Theanine from Klaire Labs is a dietary supplement designed to promote relaxation without any drowsiness. An amino acid commonly found in both gre...
View full detailsL-Theanine 400 mg by Xymogen
XymogenXymogen's L-Theanine is a naturally occurring amino acid that has been shown to have a number of possible benefits, including: Promotes relaxation...
View full detailsL-Theanine 200 mg 60 capsules by Protocol for Life Balance
Protocol For Life BalanceL-Theanine 200 mg by Protocol For Life Balance is a dietary supplement designed to promote healthy cognitive function. L-Theanine 200 mg by Protoco...
View full detailsTheanine 200 mg 90 caps by Thorne Research
Thorne ResearchTheanine 200 mg by Thorne Research is a professional and reliable health supplement which is able to help with promoting optimal brain function and...
View full detailsL-Theanine 200 mg by Vital Nutrients
Vital NutrientsL-Theanine from Vital Nutrients is a high quality health supplement which is designed to help increase alpha brain wave activity which is a sign of...
View full detailsL-Theanine 200 mg 60 capsules by NOW
NowL-Theanine 200 mg 60 vcaps by NOW Foods contain a digestible form of L-theanine that is readily absorbed by the body. Another active ingredient is ...
View full detailsL-Theanine 25 mg Pineapple 120 tablets by KAL
KALL-Theanine 25 mg Pineapple 120 tabs by KAL are a perfect supplement for those looking to find relaxation, as well as, improvements to focus and ove...
View full detailsL-Theanine 200 mg 120 caps by Metabolic Maintenance
Metabolic MaintenanceL-Theanine is a non-protein amino acid found naturally in the green tea plant (Camellia sinensis). It is an effective GABA precursor and supports h...
View full detailsL-Theanine 100 mg 90 capsules by NOW
NowL-Theanine 100 mg 90 vcaps by NOW is a dietary supplement friendly for vegetarian and vegans that is infused with decaffeinated green tea extract. ...
View full detailsL-Theanine 200 mg by Davinci Labs
DaVinci LabsDavinci Labs' L-Theanine 200 mg is a dietary supplement that contains the amino acid L-theanine. L-theanine is a naturally occurring amino acid tha...
View full detailsTheanine 200 mg 60 caps by Jarrow Formulas
Jarrow FormulasJarrow Formulas Theanine 200 provides 200 mg of L-theanine, an amino acid found in green tea. It supports relaxation and a calm, focused mind witho...
View full detailsL-Theanine 100 mg 60 caps by Douglas Labs
Douglas LabsL-Theanine 100 mg by Douglas Labs is a dietary supplement designed to promote healthy mental function and a sense of calm and well-being. The key i...
View full detailsSuntheanine L-Theanine 200 mg 60 tablets by Natural Factors
Natural FactorsAs a helpful amino acid found in greed tea, Suntheanine L-Theanine 60 tabs by Natural Factors harness the ingredient’s ability to promote relaxatio...
View full detailsTheanine 100 mg 60 caps by Jarrow Formulas
Jarrow FormulasJarrow Formulas Theanine 100 mg provides L-theanine, an amino acid found in green tea. It supports relaxation and a calm, focused mind without drow...
View full detailsL-Theanine 200 mg by Nature's Way
Nature's WayL-Theanine by Nature's Way provides 200 mg of L-theanine, an amino acid found in tea leaves, to promote calm focus without drowsiness.* It pairs we...
View full detailsTheanine XR Stress Relief 400 mg 30 tablets by Life Extension
Life ExtensionTheanine XR™ Stress Relief A revolutionary extended-release formula from Life Extension. Unlike standard L-theanine supplements, Theanine XR™ prov...
View full detailsL-Theanine 200 mg 60 capsules by Premier Research Labs
Premier Research LabsAchieving a state of calm focus and balanced mental clarity is essential for daily performance. Premier Research Labs' L-Theanine provides high-pot...
View full detailsTheanine Gummies 100 mg 60 gummies by Jarrow Formulas
Jarrow FormulasJarrow Formulas Theanine Gummies provide 100 mg of L-theanine, an amino acid found in green tea, in an apple-flavored gummy. They support relaxatio...
View full detailsL-Theanine 200 mg 90 capsules by Metabolic Maintenance
Metabolic MaintenanceL-Theanine 90 Capsules by Metabolic Maintenance: Achieve Calm Focus Naturally Find your state of calm and clarity with Metabolic Maintenance's L-Th...
View full detailsMood Magnesium Gummies with Ashwagandha & L-Theanine Green Apple 30 Gummies by Natural Stacks
Natural StacksMood Magnesium Gummies with Ashwagandha & L-Theanine by Natural Stacks supports a calm, focused mood and healthy stress response through a ta...
View full detailsAbout L-Theanine
L-theanine is an amino acid found naturally in green tea. It supports a calm, relaxed state of mind without drowsiness, which is why it is popular for both daytime focus and evening wind-down routines.
This collection includes L-theanine capsules, tablets, chewables and liposomal liquids from Pure Encapsulations, Thorne, Integrative Therapeutics, Klaire Labs, NutriDyn and more.
How to Choose an L-Theanine Supplement
- Strength: Capsules range from 100 to 400 mg. Many people start with 100 to 200 mg.
- Suntheanine: A branded, pure form of L-theanine used in several practitioner formulas.
- Chewables and liquids: Low-dose chewables suit kids and people who prefer not to swallow capsules, and liposomal liquids absorb quickly.
- Combination formulas: L-theanine paired with GABA, magnesium or herbs for broader stress and sleep support.
For calm focus during the day, L-theanine is often taken with morning coffee or tea. For evenings, many people pair it with magnesium glycinate or melatonin.
Frequently Asked Questions
What does L-theanine do?
L-theanine supports relaxation and calm focus without causing drowsiness. It is used during the day for focus under pressure and in the evening to help the mind wind down.
How much L-theanine should I take?
Most people take 100 to 400 mg per day. Start with 100 to 200 mg and follow the product label.
Can I take L-theanine with coffee?
Yes, and many people do. L-theanine is often paired with caffeine to support smooth, focused energy.
Will L-theanine make me sleepy?
Not usually. It supports relaxation rather than sedation, so it can be taken during the day. Many people also use it as part of a bedtime routine.
Related categories: GABA | Sleep Support | Stress Relief | Brain Health & Memory | Magnesium Glycinate
*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.