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Verified by IngredientMD/Nature's Bounty/Anxiety & Stress Relief Ashwagandha
VERIFIED BYingredientMD

Anxiety & Stress Relief Ashwagandha.

Strong evidence, strong doseNature's Bounty, verified Oct 2026Formula verified. Independently reviewed.Independent review. Not commissioned by Nature's Bounty.

Ashwagandha is the lead active here, studied most for everyday stress. 21 human studies on Ashwagandha back this formula, each one cited. Each serving carries 600 mg of Ashwagandha, inside the range the published research used. Who it fits: for everyone, adults.

Clinically dosedFull label disclosure
2Active ingredientsWell studiedResearch base35Human studies
Anxiety & Stress Relief AshwagandhaVerified by IngredientMD
Nature's BountyIngredientMD
The verdict
Strong evidence, strong dose
For everyone, adults.
How we verify

The brand submits the formula. We read the supplement facts panel and weigh dose, form and synergy against the clinical evidence. Labs test. IngredientMD verifies. The fee pays for review time, never for the outcome.

The formula
Ashwagandha: Everyday stressKey driver
L-Theanine: Calm and steady moodExtensively studied

How we read this product

Source: Supplement facts
Supplement Facts panel for Anxiety & Stress Relief Ashwagandha
  1. 01
    We read the label.

    The panel on the left is the one we evaluated, line by line.

  2. 02
    Every active, separately.

    All 2 actives checked against the clinical evidence: dose, form, and what the research actually shows.

  3. 03
    Then the formula as a whole.

    Doses, ratios, and how the ingredients work together. That assessment is the verdict above: "Strong evidence, strong dose".

  4. 04
    Earned, not bought.

    The verdict is public and identical whether or not a brand pays. A formula that does not clear the bar gets nothing.

Read by the engine against 2.1 million data points from clinical trials, PubMed and more than a hundred vetted sources. No individual reviewer is named or implied.

The receipts

Well studied
Research base
35
Human studies
600 mg
Ashwagandha
200 mg
L-Theanine
600 mg per serving sits inside the studied 300 mg-600 mg range
Ashwagandha, Chandrasekhar 2012 + Lopresti 2019 meta-analysis
200 mg per serving sits inside the studied 100 mg-200 mg range
L-Theanine, Nobre 2008 + Kimura 2007 alpha wave studies

Cross-checked against 80 documented interactions for these actives.

Read the evidenceAshwagandha, the evidence →L-Theanine, the evidence →

Inside the formula

Ashwagandha
21 studies
Everyday stress
Studied 300 mg to 1.2 g a day
Key driver
L-Theanine
14 studies
Calm and steady mood
Studied 100 mg to 400 mg a day
Extensively studied
In context

The gap this formula speaks to.

Public health figures the engine matched to this formula's ingredients. Reported by their source, cited and dated, never written by the brand.

The people it speaks toFieldwork 2024

12% of US adults

regularly reported feelings of worry, nervousness, and anxiety in 2024, in the National Health Interview Survey.

CDC National Center for Health Statistics, 2024
The people it speaks toFieldwork 2024

39% of adults worldwide

said they worried a lot the previous day, in the Gallup World Poll fielded in 2024 across 144 countries and territories.

Gallup, 2024
The people it speaks toFieldwork 2024

37% of adults worldwide

said they felt stressed the previous day, in the Gallup World Poll fielded in 2024 across 144 countries and territories.

Gallup, 2024
This formulaNHANES 2017-2018, published 2021

57.6%

During 2017 to 2018, 57.6% of US adults aged 20 and over reported using a dietary supplement in the past 30 days.

CDC National Center for Health Statistics
Daily usePublished 2024

59 to 66 days

was the median time it took adults to make a new daily health habit automatic across the studies a 2024 review pooled, with individuals ranging from 4 to 335 days.

Systematic review and meta-analysis, 2024
12 more
L-Theanine

Randomised trial, 2024

Over 28 days, 15 healthy adults with moderate stress taking a branded L-theanine ingredient had perceived-stress scores fall 17.98%, alongside routine safety monitoring.

Neurology and Therapy
L-Theanine

Randomised trial, 2025

Over five days, 15 young women with menstrual discomfort drinking a chamomile and theanine beverage had self-reported pain ratings fall 57.17%, with mood and sleep ratings also changing.

Journal of Food and Drug Analysis
Ashwagandha

Meta-analysis, 2025

In a pooled analysis of supplement trials, ashwagandha was among the interventions linked with better self-reported sleep quality.

Nutrients
L-Theanine

Randomised trial, 2019

In a 4-week trial in 30 healthy adults, 200 mg a day of L-theanine improved sleep quality scores, with faster sleep onset and less disturbance.

Nutrients
L-Theanine

Meta-analysis, 2025

In healthy adults, across trials, L-theanine with caffeine modestly improved accuracy on an attention-switching task, and L-theanine alone modestly sped up choice reaction time.

Nutrition Reviews
Ashwagandha

Meta-analysis, 2024

Pooling nine randomized trials in 558 adults, ashwagandha lowered perceived stress scores by about 4.7 points and serum cortisol by about 2.6 micrograms per deciliter compared with placebo.

Explore
Ashwagandha

Meta-analysis, 2021

Across five randomized trials in 400 adults, ashwagandha extract improved overall sleep with a small pooled effect (standardized mean difference -0.59), most noticeable at doses of 600 mg or more per day taken for at least eight weeks.

PLoS One
Ashwagandha

Meta-analysis, 2020

Pooling four randomized trials in 142 athletes and healthy adults, ashwagandha raised maximal oxygen uptake (VO2max) by about 3.0 mL/kg/min compared with placebo.

Nutrients
Ashwagandha

Meta-analysis, 2026

Across randomised trials, ashwagandha supplementation was associated with small gains in exercise performance measures such as strength and oxygen uptake.

Nutrients
L-Theanine

Meta-analysis, 2025

Pooling the randomised trials, L-theanine was linked to small improvements in self-reported sleep quality, while objective sleep measures showed no detectable difference.

Meta-analysis

Population figures from public health data. Context for the category, not a statement about any individual and not a claim about this product.

What this formula earned

Every one of these is a fact the engine could ground.

Each line below was derived from this formula's own record at the time of verification. Nothing here was written by the brand, and nothing can be added that the evidence does not carry.

  • Studied in people21 human studies on Ashwagandha back this formula, each one cited.
  • A mechanism that is settledHow Ashwagandha and L-Theanine work is settled pharmacology.
  • Studied together, not just separatelyAshwagandha and L-Theanine have been studied together, not only separately.
  • Recent work on the recordThe most recent study on this record was published in 2026.
  • Serving amount inside the studied rangeEach serving carries 600 mg of Ashwagandha, inside the range the published research used.
  • A stated daily maintenance amountAshwagandha is here at a daily maintenance amount, which is what a daily supplement is for.
  • Why this formatIt is a tablet, so the amount per serving is fixed and it stores well.
  • Full label disclosureEvery ingredient on this label carries its own declared amount.
  • Where it comes from and how it is madeAshwagandha is made by botanical.
  • Positions this formula already qualifies forThis formula already qualifies for positions beyond the one it is sold into, on the evidence it carries.
  • A position nobody is holding yetSome of those positions are ones almost nobody is selling to yet.
What the trials show

What the trials show about timing.

Time-to-effect windows the engine read from the trial record. Each is a window a named study measured, cited and dated, never written by the brand.

  • Ashwagandhaabout eight to nine weeks of daily useBuilds with daily use

    In a 60 day randomised, double-blind, placebo-controlled trial, 60 stressed healthy adults took 240 mg of a standardised ashwagandha extract (Shoden) once daily or placebo. The ashwagandha arm showed a larger fall in Hamilton Anxiety Rating Scale scores (p = .040) and in morning cortisol (p < .001) than placebo, with the DASS-21 change near-significant (p = .096). A separate 8 week randomised, double-blind, placebo-controlled dose-ranging trial enrolled 131 adults with self-reported high stress and analysed 98, measuring reduced Perceived Stress Scale scores at 125, 250 and 500 mg per day of an aqueous root and leaf extract. Two trials on two different extracts, both landing in the same eight to nine week band.

    Promising
  • L-Theaninewithin about 45 to 50 minutes of a single doseMeasured within a day

    Two double-blind placebo-controlled crossover trials measured attention at a fixed interval after one oral dose. In 24 overnight sleep-deprived adults aged 20 to 25, a 200 mg dose tested 45 minutes post-dose reduced false alarms on a traffic-scene recognition task and raised target-distractor discriminability. In 27 healthy young adults tested 50 minutes post-dose, 400 mg shortened the parietal P3b event-related potential latency against placebo, with no significant change at 100 or 200 mg. Both trials measured task and electrophysiological markers, not a subjective feeling.

    Promising

Windows measured in the cited trials. Context for how the active behaves over time, not a statement about any individual and not a claim about this product.

General timing

How each ingredient usually behaves over time.

Two ingredients, from each one's own page.

How each ingredient usually behaves over time, from its own page on IngredientMD. General timing for the ingredient, not a measurement of this product.

Chemical form

The same ingredient, carried differently.

What each form is, and where it fits in a formula. Measured findings carry the study that reported them.

  • Standardised root extract

    An extract of the root alone, standardised to its withanolide content, the constituent family the clinical literature doses by. Root-only sourcing distinguishes it from root-plus-leaf extracts.

    Fits
    Formulas that want the dosing and safety record of the studied preparations, since most trials used standardised root-only extracts at 125 to 600 mg a day.
    Trade-off
    Standardisation states withanolide content, not which withanolides. Extracts differ in their glycoside profile even at the same declared percentage.

    A systematic review of 23 randomised trials in 2,317 generally healthy adults taking standardised ashwagandha root extract at 125 to 600 mg per day, from a single dose to 180 days, found hepatic, renal, haematological, endocrine and cardiovascular biomarkers stayed within normal clinical ranges, reductions in cortisol were consistently observed, testosterone shifts stayed within physiological range, and no serious adverse events were attributed to the extract.

  • L-theanine

    The single L-enantiomer as a free amino acid, the form found in tea leaf and the form used in essentially all human trials.

    Fits
    Anyone matching what the trial literature actually tested, and anyone formulating with caffeine.
    Trade-off
    Hygroscopic powder with a faint umami taste that can come through in unflavoured drink mixes.

Descriptions of the form itself, read from the cited studies. Not a comparison between products and not a statement about any individual.

Format

Tablet

It is a tablet, so the amount per serving is fixed and it stores well.

Best forHigh-dose minerals and anything needing timed or delayed release.

Questions shoppers ask

Is Anxiety & Stress Relief Ashwagandha independently verified?
Yes. IngredientMD reviewed this formula independently and verified it in Oct 2026. The verdict is earned, not bought: brands can't edit or purchase it.
What's in Anxiety & Stress Relief Ashwagandha?
Anxiety & Stress Relief Ashwagandha is built on Ashwagandha, L-Theanine. Each ingredient links to its own evidence page on IngredientMD.
Were ingredient interactions checked?
Yes. The combination was screened against 80 documented interactions for these actives in IngredientMD's interaction database.
Who is IngredientMD?
IngredientMD is an independent supplement-science platform. We analyze ingredients and formulas against clinical research, and we verify products only when they clear our bar. Labs run the tests. We review the results.
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These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. This record is not medical advice. Always consult your healthcare provider before starting any supplement regimen.

Independent review by IngredientMD, not commissioned by Nature's BountyWork at Nature's Bounty? This verification is yours to claim →