Confidence: 95%
B0BBKB3QVV
View on Amazon →Decision summary
Excellent formulation overall. This looks like a top-tier option
Best for
People prioritizing high absorption and overall formula quality.
Consider another option if
You care a lot about label clarity and want fewer unknowns.
Score breakdown
Tap a module to see what it measures. A 0 can reflect missing disclosure, not just a negative result.
Dosage quality
10.0/10Strong dosing for the intended goal
Checks whether labeled ingredient amounts fall within clinically studied ranges (not just regulatory minimums). Low/0 can reflect under-dosing or missing amounts (e.g., proprietary blends).
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Ashwagandha: dose within clinically studied range (evidence A). The main limitation is that ashwagandha: standardization missing — withanolides — expected standardization: 5.0 % (-2).
Strengths
Weaknesses
Final verdict
Excellent formulation overall. This looks like a top-tier option based on the current scoring inputs.
A closer look at the main ingredients, how they influence the score, and the supporting evidence when available. Tap any ingredient to expand.
✔ Clinically effective dose with moderate supporting evidence
A clear strength: Dose is strong and within effective ranges. The declared form supports strong absorption.
Scientific evidence
Owen et al. RCT theanine and caffeine on cognitive performance
Nutritional Neuroscience • 2008
PMID: 18681988.0
Lu et al. RCT L-theanine and stress response in healthy adults
Nutritional Neuroscience • 2004
PMID: 16930802.0
✔ Clinically effective dose with strong supporting evidence
Strong contributor: Dose is strong and within effective ranges. The declared form is acceptable, but not among the best-absorbed options.
Scientific evidence
Wankhede et al. RCT ashwagandha and testosterone levels
American Journal of Men's Health • 2015
PMID: 31991540.0
Chandrasekhar et al. RCT ashwagandha and cortisol in stressed adults
Indian Journal of Psychological Medicine • 2012
PMID: 23439798.0
Important label or formulation details that may affect how this product should be interpreted.
Some label details are missing or unclear
Incomplete disclosure makes the product harder to evaluate confidently.
There is a formulation caveat worth noting
Product name or brand not detected (-1)
Read our methodology overview to understand how SuppScoreLab combines multiple scientific dimensions into one practical score.
View methodology →This evaluation is based on the product label and declared Supplement Facts available at review time. It does not verify laboratory-tested composition, purity, or batch-level quality. This content is educational and not medical advice. Consult a qualified healthcare professional for personal health decisions. Affiliate disclosure: SuppScoreLab may earn a commission from qualifying Amazon links.
See the best Theanine supplements ranked with the same methodology, or keep exploring the database.
