Doctor's Best, L-Theanine, AlphaWave, 200 mg, 60 Veggie Caps
One vegan capsule supplies 200 mg of AlphaWave L-theanine with no caffeine. The label fully discloses the active dose and excipients, but the iHerb page does not link a recognized finished-product certification or product-specific certificate of analysis.
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Our Verdict
The branded form and trial-aligned 200 mg dose keep it ahead of generic products. Its lack of accessible product-specific testing evidence prevents a higher rank despite otherwise strong formulation and value.
Score Breakdown
Pros & Cons
Pros
- •200 mg of branded AlphaWave in one capsule
- •Vegan, non-GMO, gluten-free, soy-free, and caffeine-free labeling
- •Fully disclosed single active without a proprietary blend
Cons
- •No product-specific COA or USP/NSF certification is linked on iHerb
- •Contains microcrystalline cellulose, stearic acid, and silicon dioxide
Specifications
| L-Theanine Per Serving | 200 mg |
| L-Theanine Form | AlphaWave® highly purified L-theanine |
| Serving Size | 1 veggie capsule |
| Servings Per Container | 60 |
| Caffeine | 0 mg; none listed |
| Format / Vegan | Hypromellose veggie capsule; vegan |
| Other Ingredients | Microcrystalline cellulose, hypromellose capsule, stearic acid, silicon dioxide |
| Testing / Certification | No recognized finished-product certification or published product-specific COA linked on iHerb |
Who Is This For?
Best For
- Buyers wanting a 200 mg AlphaWave capsule
- Buyers avoiding caffeine, gluten, soy, and animal capsules
Not For
- Buyers requiring published current-lot laboratory results
- Buyers seeking the lowest cost per milligram
Where to Buy
Appears In
Customer Reviews
Alternatives to Consider
California Gold Nutrition, L-Theanine, Featuring AlphaWave, 100 mg, 60 Veggie Capsules
California Gold Nutrition
Each vegan capsule supplies 100 mg of branded AlphaWave L-theanine without caffeine. A published iTested report identifies the product codes, laboratories, potency result, and microbial results, although it covers lot 3533 from 2018 rather than current inventory.
Natural Factors, Stress-Relax, Suntheanine L-Theanine, 100 mg, 60 Chewable Tablets
Natural Factors
The label defines one serving as two chewable tablets, providing 200 mg of enzymatically produced Suntheanine. The product is vegan and carries Isura non-GMO documentation and mass-spectrometry laboratory verification, but each serving also contains 3 g of added sugar.
Nutricost, L-Theanine, Unflavored, 3.6 oz (100 g)
Nutricost
Each 0.2 g scoop contains 200 mg of generic L-theanine, and the label lists no other ingredients. It is by far the lowest-cost option per active milligram, although the page supplies only a general third-party-tested claim rather than a named certification or published COA.
EVLution Nutrition, L-Theanine, 200 mg, 60 Veggie Capsules
EVLution Nutrition
Each vegan capsule supplies 200 mg of generic L-theanine without caffeine. It provides strong active-ingredient value and a trial-aligned dose, but the label does not identify a branded purity process, recognized certification, or product-specific COA.