1 / 7Nutratology L-Theanine 250 mg, 120 Capsules
Capsules: Nutratology L-Theanine is a 250 mg capsule supplement supplied in a 120-count bottle. The listing describes it as vegan and gluten-free, and claims it supports relaxation without drowsiness. Those are product claims, not independently established effects.
At a glance
- The listed amount is 250 mg of L-Theanine per capsule, with 120 capsules per bottle.
- The capsules are described as unflavoured, uncoated, vegan and gluten-free.
- The listing claims the supplement promotes relaxation without drowsiness and may be used during the day or evening.
- The product is described as made in Canada.
Reference price: $19.99
Price checked: Nov 12, 2026
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Pros and cons
Pros
- A 120-capsule bottle and a stated 250 mg per capsule make the listed quantity and amount clear.
- Capsule format is convenient for buyers who prefer a pre-measured supplement over powder.
- Vegan and gluten-free attributes are specified in the listing.
Technical specifications
12 specifications| Brand | Nutratology |
|---|
| Supplement type | L-Theanine |
|---|---|
| Amount per capsule | L-Theanine (250 mg per capsule) |
| Form | Capsule |
| Flavour | Unflavored |
| Coating | Uncoated |
| Diet type | Gluten Free, Vegan |
|---|---|
| Allergen information | Gluten Free, Non-GMO |
| Material feature | GMO Free |
| Age range | Adult |
| Container | Bottle |
| Made in Canada | Made In Canada |
What to know before buying
Listing details to confirm
The listing describes relaxation, calmness, focus and use alongside caffeine as intended benefits. These are manufacturer claims and do not establish an individual effect or suitability. Consult a qualified health professional about use, interactions and side effects, particularly if you take medication or have a health condition.
Who is it for?
A good fit for
- Adults looking for L-Theanine in capsule form with a stated 250 mg per capsule.
- Buyers seeking a listed vegan, gluten-free and unflavoured supplement.
Less suited to
- Anyone seeking a product whose effects or side-effect profile are guaranteed. The listing and customer ratings cannot establish that for an individual.

Customer reviews on Amazon
- 5 stars
76% 76% - 4 stars
14% 14% - 3 stars
5% 5% - 2 stars
1% 1% - 1 star
4% 4%
Customer feedback is generally positive about feeling calmer and more relaxed, sleep quality and focus, and the summary also notes satisfaction with daily use, ease of use and ingredients. Some customers report sleeping well without heavy drowsiness, which is relevant to the listing's daytime-use claim, but responses are not uniform and opinions on side effects are mixed. The aggregate rating is 4.5 out of 5 from 1,857 ratings. Ratings and reported experiences do not establish how this 250 mg capsule will affect a particular buyer.
Positive themes
- Customer feedback describes relaxation and calmness, along with perceived benefits for sleep quality and focus.
- The feedback summary notes satisfaction with daily use, ease of use and ingredients.
Mixed feedback
- Customer opinions on side effects are mixed. The feedback does not establish specific causes or outcomes.
Frequently asked questions
How much L-Theanine is listed per capsule?
The listing states L-Theanine (250 mg per capsule).
How many capsules are in the bottle?
The listed unit count is 120 capsules.
Is the supplement described as vegan and gluten-free?
Yes. The listing identifies it as vegan and gluten-free.
Does the listing claim it causes no drowsiness?
It claims relaxation without drowsiness, but this is not a guaranteed effect. Customer feedback reports positive experiences with calmness and sleep, while opinions on side effects are mixed.

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