L-Theanine 250mg

L-theanine is an amino acid that promotes relaxation without the sedating effects that many herbs and pharmaceuticals have. Discovered in 1949 as a natural component of green tea leaves, it balances our neurotransmitters serotonin, GABA and dopamine while promoting alpha brain waves - - the signature of a calm, focused mind. At the same time, l-theanine inhibits the effects of the stress hormones epinephrine and norepinephrine. The result is a calm, focused mind that is more resilient against stress, promoting a better sleep and a better mood.

L-theanine has an excellent safety profile. It’s compatible with prescription medications, and may be used at any time of day on an ongoing basis because it is non-stimulating, non-drowsy and non-habit-forming.

Make Pure Lab’s L-Theanine capsules part of your day and discover the benefits of a calm, focused mind.

How to Infuse Calm Energy Into Your Holiday Season: Take our Quiz

Why August Feels So Anxious – And What You Can Do Naturally

From Tense to Tranquil: Top Supplements for a Calmer You

Help For Back-To-School Jitters

Nutrition and Anxiety

SEE MORE BLOGS

Magnesium Glycinate + L-Theanine

Magnesium Glycinate 165 mg

Magnesium Glycinate Powder

Magnesium Glycinate 100 mg

Magnesium Glycinate Fully Reacted 100 mg

Slow Release L-Theanine

L-Theanine Chewables

Slow Release BioActive B-Complex

Evans, M., McDonald, A.C., Xiong, L. et al. A Randomized, Triple-Blind, Placebo-Controlled, Crossover Study to Investigate the Efficacy of a Single Dose of AlphaWave ^® L-Theanine on Stress in a Healthy Adult Population. Neurol Ther 10, 1061–1078 (2021).

Lyon MR, Kapoor MP, Juneja LR. The effects of L-theanine (Suntheanine®) on objective sleep quality in boys with attention deficit hyperactivity disorder (ADHD): a randomized, double-blind, placebo-controlled clinical trial. Altern Med ev. 2011;16(4):348-354.

Williams J, Kellett J, Roach PD, McKune A, Mellor D, Thomas J, Naumovski N. l-Theanine as a Functional Food Additive: Its Role in Disease Prevention and Health Promotion. Beverages. 2016; 2(2):13.

Yoto A, Motoki M, Murao S, Yokogoshi H. Effects of L-theanine or caffeine intake on changes in blood pressure under physical and psychological stresses. J Physiol Anthropol. 2012;31(1):28. Published 2012 Oct 29.

Do Pure Lab’s L-Theanine products contain caffeine?

Answer: No, Pure Lab’s L-Theanine products are caffeine-free.

Is Pure Lab’s L-Theanine safe for children?

Answer: Health Canada does not allow us to provide dosage recommendations for children, even though many studies focus on efficacy in children with ADD/ADHD.

Can I take Pure Lab’s L-Theanine products while pregnant or breastfeeding?

Answer: We don’t recommend taking Pure Lab’s L-Theanine products while pregnant or breastfeeding due to insufficient safety data on this population.

Are Pure Lab’s L-Theanine products safe for individuals taking pharmaceutical medications?

Answer: Yes, Pure Lab’s L-Theanine products may be taken by individuals on medications, including but not limited to anti-depressants, sleeping pills and mood-altering drugs.

Are there any medications that l-theanine should not be taken with?

Answer: L-Theanine should not be taken at the same time of day as thyroid medication.

Do Pure Lab’s L-Theanine products need to be taken with food?

Answer: No, Pure Lab’s L-Theanine products do not need to be taken with food. However, some individuals may choose to take them at meal time.

Do Pure Lab’s L-Theanine products have any side effects?

Answer: L-Theanine has no documented side effects.

What use are L-Theanine products approved for?

Answer: In Canada, the registered health claim for Pure Lab’s L-Theanine products is ‘promotes relaxation’.

Are Pure Lab’s L-Theanine products vegan?

Answer: Pure Lab’s L-Theanine products contain no animal-derived ingredients. They are vegan.

Is Pure Lab Vitamins a Canadian company?

Answer: Yes, Pure Lab Vitamins is proudly owned and operated. Our products are made in Canada.

Are Pure Lab’s L-Theanine products third-party tested?

Answer: Yes, Pure Lab’s L-Theanine products are third-party tested. Our raw materials and finished goods are always tested by ISO-certified labs.

Are Pure Lab’s L-Theanine products made in a GMP-certified facility?

Answer: Yes, Pure Lab’s L-Theanine products are made in a GMP-certified facility.

About L-Theanine

Bottle Views

Related Videos

Related Blogs

Related Products

Research

FAQ