L-Theanine 200mg

Description

L-theanine 200mg a capsule, and nothing else in it. No caffeine, no added herbs, no filler beyond the shell. Theanine is a non protein amino acid found in Camellia sinensis, the tea plant, and the material in supplements is made by fermentation or synthesis rather than stripped out of leaf. An L-theanine 200mg capsule is therefore a single compound at a stated weight, which is the only way to match a label against a published protocol.

What is in the capsule

Why an l-theanine 200mg capsule holds no caffeine

Because the ratio is a decision, not a product feature. Most of the published work on this amino acid pairs it with caffeine, and the amounts used vary: 50 to 200 mg of caffeine against 100 to 250 mg of theanine. Fixing both in one capsule suits people who want the combination and nobody else.

Keeping them separate means a morning coffee can be the caffeine half, or the capsule can be taken on its own in the afternoon. The fixed ratio version, at 100 mg and 200 mg, sits on the performance page for anyone who would rather not count. Both approaches are legitimate and the arithmetic is the same either way.

How much l-theanine 200mg is against a cup of tea

Brewed tea carries theanine in the region of 25 to 60 mg a cup, moving with leaf grade, water temperature and steeping time. Matching one capsule from a teapot is four to eight cups, which also brings four to eight cups of caffeine with it. That arithmetic is the entire reason an isolate exists.

Green tea extract is not a substitute either, since the extraction is calibrated to catechins and the theanine content is incidental and usually unstated. If theanine at a known weight is what you want, the weight has to be on the panel. Our piece on blend disclosure covers what happens when it is not.

What the studies administered

Human trials have mostly used 100 to 400 mg in a single dose, measuring attention switching and reaction time tasks, working memory tests, self reported alertness questionnaires and electroencephalogram alpha band activity. Those are the amounts administered and the instruments read in the published literature. It is a description of that work and not a claim about this bottle, which is a food under United States law.

Why this one is shelved with the botanicals

Theanine comes from a plant and is sold alongside plant extracts, so it lives on the herbals page rather than with the amino acids. The distinction is merchandising rather than chemistry. What matters on the label is the same as for any extract: the compound named in full, the weight stated, and an assay behind both.

Why an l-theanine 200mg capsule costs what it does

Fermentation produced theanine is not expensive to make at scale, and the price per milligram under the price is the figure to compare across brands. What moves it is purity grade and whether the capsule holds anything else. A bottle pairing an l-theanine 200mg dose with a long list of herbs at unstated weights is a different product sold from the same shelf position, and usually a dearer one per milligram of theanine.

Single ingredient also means the l-theanine 200mg figure is the only thing on the panel to verify, which makes the certificate short and the comparison quick.

Tolerability, stated plainly

The trials recorded few complaints at these amounts, with headache the most commonly mentioned. Theanine has no established intake reference, so there is no official figure to compare a capsule against, and the NIH Office of Dietary Supplements fact sheet library is the free place to see how federal reviewers handle a compound in that position.

Testing

Identity and purity are measured on every lot by a laboratory with no ownership tie to this company, with heavy metals, residual solvents and microbials on the same report. A fermentation product gets the solvent line read first. Under strength lots are withdrawn and the failing certificate stays published, and your l-theanine 200mg report is linked above alongside every other one on lab results.