Naka Platinum Ultra L-Theanine 400mg, Helps Temporarily Promote Relaxation, Non-Drowsy Stress and Focus Support, 75 Capsules

Naka Platinum Ultra L-Theanine 400mg Details

Naka Platinum Ultra L-Theanine 400mg delivers 400mg of L-theanine in a single capsule — the highest single-capsule theanine dose in the Naka line, and roughly four times the amount you get from a cup of green tea. L-theanine is the amino acid found naturally in tea leaves, and the reason people buy it is the specific effect it has: it helps temporarily promote relaxation without sedation. This is a non-drowsy formulation.

Naka positions it as a stress solution that promotes tranquility and relaxation, increases mental focus and concentration, and improves learning ability and performance — what a student before an exam or an executive before a presentation is actually looking for. One capsule a day, 75 per bottle, made in Canada, three non-medicinal ingredients. Contains no added gluten, nuts, eggs, animal products, dairy products, fish or shellfish, corn, starch, wheat or yeast.

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Quick Facts

Who Ultra L-Theanine Is For

• People who want to feel calmer during the working day without feeling flattened — the whole point of theanine over a sedative herb
• Students and anyone facing exams or presentations, where Naka positions the formula for focus, concentration and learning performance
• Heavy coffee drinkers who like the alertness but not the jittery edge
• Anyone who tried a 100mg or 200mg theanine and concluded the dose was too small to notice
• Those who want a single-ingredient amino acid rather than a proprietary calm blend with six herbs in it
• People avoiding animal products, dairy, nuts and gluten — the allergen list here is unusually short

Who this product is NOT for: If what you want is help falling asleep, theanine is the wrong tool — it is deliberately non-drowsy, and a melatonin or a dedicated formula such as Naka Platinum Pro Sleep is built for that job. If 400mg is more than you want in one go, the 250mg version or the L-Theanine Plus Green Tea at 100mg step it down. If you want theanine as one part of a broader stress stack, browse Stress & Relaxation instead.

Vitamart's Take

We stock this because the dose is the differentiator. Most theanine on the Canadian market sits at 100mg or 200mg per capsule, so anyone wanting 400mg swallows two or four pills and pays twice. Naka puts the whole 400mg into one capsule with three excipients, made in Canada, 75 capsules a bottle. A clean, unfussy product, and it sells steadily for that reason.

The honest trade-off is that 400mg is a committed dose rather than a starting one. If you have never taken theanine you cannot easily split a capsule to find your floor, and some people find their sweet spot well below 400mg. In that case the 250mg or the green tea combination is the smarter first purchase, and you move up once you know the compound suits you. The other thing worth saying plainly: theanine is subtle. It takes the edge off; anyone expecting to feel knocked sideways will be disappointed.

How Ultra L-Theanine Compares

With theanine there is only one real ingredient question — milligrams per capsule — and then a format question about whether you want anything else in the bottle alongside it.

• Versus Naka Platinum L-Theanine 250mg: The 250mg version is the same single-ingredient approach at a lower dose in a vegetable capsule, also 75 count — the sensible starting point.
• Versus L-Theanine Plus Green Tea: That formula pairs 100mg of theanine with 100mg of green tea extract across 90 capsules — a lower theanine dose with the tea polyphenols added back.
• Versus a theanine and magnesium combination: Enhanced Magnesium L-Threonate with L-Theanine and GABA treats theanine as one component of a broader formula.
• Versus buying two 200mg capsules: Mathematically identical, practically worse — twice the capsules, usually a higher cost per 400mg.

What Is L-Theanine?

L-theanine is an amino acid that occurs almost nowhere in the food supply except tea leaves, where it is responsible for the particular quality of calm attention people associate with drinking green tea rather than coffee. Chemically it is close enough to glutamate — the brain's main excitatory messenger — to cross the blood-brain barrier using the same transport route, and once there it interacts with glutamate signalling and influences the balance of neurotransmitters including GABA, dopamine and serotonin.

What that produces is unusual among relaxation ingredients: a measurable shift toward alpha brainwave activity, the state associated with wakeful, relaxed focus rather than drowsiness. That is why Naka describes the formula as naturally non-drowsy, and why it sits alongside a good coffee rather than replacing it — caffeine delivers the alertness, theanine smooths the jitteriness. Naka lists the benefits as temporarily promoting relaxation, increasing mental focus, reducing stress naturally and safely, and improving learning ability and performance. The 400mg here is roughly four times what a cup of brewed green tea provides — the practical reason for taking it as a capsule at all.

How To Use

Adults take 1 capsule daily, or as suggested by a healthcare practitioner.

Frequently Asked Questions

Pairs Well With

• Magnesium Supplements — the other staple for people managing day-to-day stress and muscle tension
• GABA Supplements — frequently stacked with theanine for calm without sedation
• Focus & Concentration Supplements — where theanine's alertness side fits in a broader routine
• Green Tea Extract Supplements — theanine's natural source, if you want the polyphenols as well

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Compare Similar Products

• Naka Platinum L-Theanine 250mg — the lower-dose single-ingredient option in a vegetable capsule
• Naka Herbs L-Theanine Plus Green Tea 200mg — 100mg theanine with 100mg green tea extract, 90 capsules
• Theanine Supplements — every theanine we carry, to compare milligrams per capsule across brands
• Anxiety & Stress Aids — the wider category if you want to compare theanine to herbal alternatives

About Vitamart

Vitamart.ca is Canada's vitamin specialist. We've shipped from our Ontario warehouse to Canadian families since 2005, backed by our Low Price Guarantee: find a lower advertised price at a Canadian competitor and we'll beat it by 1¢. We believe in quality products you trust at prices you love.

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Adults take 1 capsules daily or as suggested by a healthcare practitioner