Doctor's Best, L-Theanine, AlphaWave, 200 mg, 60 Veggie Caps
One vegan capsule supplies 200 mg of branded AlphaWave L-theanine with no caffeine. AlphaWave's supplier specifies at least 98% L-theanine, but no USP, NSF, Informed Sport or published Doctor's Best product-specific certificate was located.
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Our Verdict
The form and dose are strong, but the heaviest-weighted testing criterion is materially weaker than the products above it, and an equivalent AlphaWave dose is available for less.
Score Breakdown
Pros & Cons
Pros
- •Uses branded AlphaWave rather than an undisclosed generic source.
- •One capsule supplies a research-aligned 200 mg serving.
- •The hypromellose capsule is vegan, and caffeine content is zero.
Cons
- •No recognized finished-product certification or published product-specific certificate was located.
- •It costs $0.27 per 200 mg and contains more excipients than the lower-priced California Gold product using the same branded ingredient.
Specifications
| L-Theanine Form | AlphaWave® branded L-theanine; supplier specification ≥98% L-theanine |
| L-Theanine Per Serving | 200 mg |
| Serving Size | 1 veggie capsule |
| Servings Per Container | 60 |
| Caffeine Per Serving | 0 mg |
| Format | Vegan capsule |
| Other Ingredients | Microcrystalline cellulose, hypromellose capsule, stearic acid, silicon dioxide |
| Third-Party Evidence | No USP, NSF, Informed Sport or published product-specific COA located |
Who Is This For?
Best For
- Vegans wanting 200 mg of branded AlphaWave per capsule
- Buyers who prefer Doctor's Best and do not require a published finished-product certificate
Not For
- Buyers making independent certification the highest priority
- Buyers seeking the lowest price for the same AlphaWave dose
Where to Buy
Appears In
Customer Reviews
Alternatives to Consider
California Gold Nutrition, L-Theanine, Featuring AlphaWave, 200 mg, 60 Veggie Capsules
California Gold Nutrition
Each vegetarian capsule contains 200 mg of branded AlphaWave L-theanine and no caffeine. The supplier specifies AlphaWave as at least 98% L-theanine, while iHerb publishes a product-specific iTested certificate, although the located report covers a 2018 lot.
Sports Research, L-Theanine, 200 mg, 60 Softgels
Sports Research
One softgel contains 200 mg of Suntheanine, Taiyo's fermentation-derived, isomerically pure L-theanine ingredient, with no caffeine. The product is publicly listed as IGEN Certified for non-GMO criteria and its label states third-party testing with lot-number lookup.
Natural Factors, Stress-Relax, Suntheanine L-Theanine, 100 mg
Natural Factors
The labeled serving is two vegan chewable tablets supplying 200 mg of fermentation-derived Suntheanine without caffeine. The label fully discloses 3 g of added sugar per serving, xylitol and the remaining tablet ingredients.
Nature's Bounty, L-Theanine, 90 Capsules
Nature's Bounty
Each vegetarian capsule contains 200 mg of generic-source L-theanine and no caffeine; the only listed inactive material is the hypromellose-and-water capsule. NutraBio states that finished products receive third-party verification and offers lot-specific certificates, but the label does not identify a branded ingredient or publish an L-isomer purity specification.