You're getting two well-researched calming ingredients at full clinical doses. **Ashwagandha** (KSM-66 extract) delivers 600mg per serving — the top of the range used in RCTs showing reduced cortisol and perceived stress. **L-Theanine** adds 200mg, the exact single dose most studied for promoting relaxation without drowsiness.

The KSM-66 extract is a root-only standardized form with strong clinical backing for stress reduction and may also support sleep quality. L-Theanine complements it well — where ashwagandha works over weeks as an adaptogen, theanine can take effect within an hour, giving you both fast-acting and sustained support.

The two-tablet serving size is worth noting — if you take only one tablet, you're halving both doses. Ashwagandha at 300mg would still be within the clinical range, but you'd lose the full benefit of the combination at its studied doses.

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BioStacks

Nature's Bounty

Anxiety & Stress Relief, 90 Tablets

Tablet · 45 servings · $0.65/serving

84 / 100Excellent

Score Breakdown

Formulation
84
Safety
100
Final score
84/100

Ingredients (2)

Ashwagandha Extract KSM-66600 mg

Optimal dose · Premium form

L-Theanine200 mg

Optimal dose

Label Nutrition Facts

Active Ingredients

From the label · % Daily Value

DV%

Ashwagandha Extract KSM-66600 mg

L-Theanine200 mg

Other Ingredients

Fillers, coatings, and additives

5Safe

Silicon DioxideAnti-caking

Safe

Magnesium StearateLubricant

Safe

Microcrystalline CelluloseBinder

Safe

GlycerinHumectant

Safe

Stearic AcidLubricant

Safe

crospovidone

Unknown

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.