L-Theanine Slow Release 200mg

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 Slow Release capsules part of your day and discover the benefits of a calm, focused mind.

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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.

How long do the effects of Pure Lab’s Slow-Release L-Theanine last?

Answer: On average, an individual can expect to experience therapeutic effects of our Slow Release L-theanine for about 3 to 6 hours. However, individual experiences vary based on diet and metabolic differences.

Which ingredient in Pure Lab’s Slow-Release L-Theanine are responsible for the slow-release effect and how does it work?

Answer: The ingredient in Pure Lab’s Slow Release L-Theanine responsible for the slow-release effect is hypromellose SR. This is a fiber derived from the pulp of the poplar or birch tree. The hypromellose SR is mixed with the ingredients within the capsule so that it forms a gel upon contact with digestive fluids. This allows for a slower release of the active ingredient, l-theanine, and therefore, a more gradual, sustained therapeutic effect.

Does Pure Lab’s L-Theanine contain caffeine?

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

How much l-theanine is in one of Pure Lab’s Slow Release L-Theanine capsules?

Answer: Each capsule of Pure Lab’s Slow Release L-Theanine contains 200 milligrams of l-theanine.

Is Pure Lab’s Slow Release 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 Slow-Release L-Theanine while pregnant or breastfeeding?

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

What use is Pure Lab’s L-Theanine approved for?

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

Is Pure Lab’s Slow Release L-Theanine safe for individuals taking pharmaceutical medications?

Answer: Yes, Pure Lab’s Slow Release L-Theanine 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.

Is Pure Lab’s L-Theanine vegan?

Answer: Pure Lab’s L-Theanine contains no animal-derived ingredients. It is vegan.

Is Pure Lab Vitamins a Canadian company?

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

Is Pure Lab’s Slow Release L-Theanine third-party tested?

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

Is Pure Lab’s Slow Release L-Theanine made in a GMP-certified facility?

Answer: Yes, Pure Lab’s Slow Release L-Theanine is made in a GMP-certified facility.

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