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L-Theanin — product comparison
Rankings from our live catalog (21 products with measured amounts). Not affiliate lists — our own structured ingredient data.
- Products
- 2
- +19 more also contain L-Theanin
- Structured dose
- 50 %
- 1 / 2
- Cheapest per serving
- €0.43
- Doctor's Best
- Median per serving
- €0.43
Serving: the amount the manufacturer states per serving on the label, for example 1 capsule. It is not always the full daily intake. Median: the middle price per serving, so half of the products cost less and half cost more. Cheapest and median only count products where L-Theanin is the main ingredient: the only active ingredient, at least half of the active ingredients' weight per serving, or, when every ingredient is a vitamin or mineral, listed first with at least half of the summed % of the nutrient reference value. Multi-ingredient formulas with nine or more active ingredients never count. Updated 2026-10-31.
Price per serving
Measure shown: price per servingL-Theanin as the main ingredient
Lowest price per displayed serving first. 1 of 2 products carry a structured dose and can be ranked.
| # | ||||||
|---|---|---|---|---|---|---|
| 1 |  Doctor's Best - L-Theanine Alphawave - 60 Vcaps Doctor's BestBest value | 200 mg | €26.00 | 1 capsule | 60 | €0.43 |
Also contains L-Theanin
19 products where L-Theanin is not the main ingredient, such as multivitamins and blends. They are ranked separately and are not included in the key figures above.
| # | ||||||
|---|---|---|---|---|---|---|
| 1 | 100 mg | €16.00 | 1 capsule | 90 | €0.18 | |
| 2 |  MuscleTech Hydroxycut Hardcore Elite Muscletech | 100 mg | €31.00 | 1 capsule | 100 | €0.31 |
| 3 |  Trained by JP - Unwind - 120 Caps Trained by JP | 200 mg | €34.00 | 2 capsules | 60 | €0.57 |
How we calculate
Price per serving = price ÷ servings per pack. The count comes from serving data or pack quantity ÷ serving quantity in the same unit. ≈ marks a rounded count; price uses the unrounded count. The displayed serving is not always the full daily intake. Products without sufficient data are omitted.
Compare forms
L-Theanin by chemical form in our catalog: how many products, typical amount and what a serving costs. Medians from live data, not marketing.
No form data for L-Theanin yet.
Best value (lowest price per g)
Measure shown: price per g of L-Theanin across the whole packPrice per g across the whole pack: price ÷ (amount per serving × servings per pack). It needs a known serving count, so 1 of 2 products can be ranked.
| # | ||||
|---|---|---|---|---|
| 1 | Doctor's Best - L-Theanine Alphawave - 60 Vcaps Doctor's BestBest value | 200 mg | €26.00 | €2.17 |
Only products with L-Theanin as the main ingredient. Others are listed under Also contains L-Theanin
How we calculate
Price per g = price ÷ (amount per serving × servings per pack). Products without a known serving count are left out rather than ranked on price ÷ amount per serving — that figure depends on serving size and reverses the order.
Highest amount per serving
| # | |||
|---|---|---|---|
| 1 | 250 mg | €18.00 | |
| 2 | Doctor's Best - L-Theanine Alphawave - 60 Vcaps Doctor's Best | 200 mg | €26.00 |
Only products with L-Theanin as the main ingredient. Others are listed under Also contains L-Theanin