Home Ingredients Asera™ (Standardized Ashwagandha — Withanolides + Oligosaccharides)
Stress & AnxietyMood & Mental HealthSleep HealthCognitive

Asera™ (Standardized Ashwagandha — Withanolides + Oligosaccharides)

Withania somnifera
Evidence Level
Moderate
2 Clinical Trials
3 Documented Benefits
3/5 Evidence Score

Asera™ is a branded ashwagandha (Withania somnifera) root extract from Vidya Herbs with a dual standardization — 10% withanolides plus 30% oligosaccharides — marketed for stress, mood and sleep. Ashwagandha is one of the best-evidenced adaptogens, with multiple randomized trials and systematic reviews showing reduced stress, anxiety and cortisol. Honest framing: that strong evidence is for ashwagandha generally; Asera's specific branded trial is not PubMed-indexed, so it inherits the generic evidence plus manufacturer data. See the generic Ashwagandha entry and other branded forms.

Studied Dose Manufacturer trial: 160 mg/day for 2 months. Ashwagandha stress trials generally use 250–600 mg/day of a standardized root extract.
Active Compound Ashwagandha (Withania somnifera) root extract dual-standardized to 10% withanolides and 30% oligosaccharides. Asera™ is manufactured by Vidya Herbs.

Benefits

Stress and anxiety reduction

Ashwagandha has repeatedly reduced perceived stress and anxiety scores versus placebo across randomized trials; Asera's manufacturer trial reports the same with a 160 mg/day dose. The class evidence is strong.

Supported by Trial 1, Trial 2

Lower cortisol

Ashwagandha lowers serum cortisol in controlled trials, a plausible mechanism for its stress and sleep benefits.

Supported by Trial 2, Trial 1

Mood and sleep support

Reduced stress and cortisol translate into better-reported mood and sleep quality, common findings in ashwagandha trials.

Supported by Trial 2, Trial 1

Mechanism of action

1

HPA-axis / cortisol modulation

Withanolides modulate the hypothalamic-pituitary-adrenal stress axis, lowering cortisol output and buffering the stress response.

2

GABAergic and neuroprotective activity

Ashwagandha constituents have GABA-mimetic and antioxidant neuroprotective effects relevant to calm, sleep and cognition.

Clinical trials

1
Branded Asera Stress Trial (manufacturer)

Randomized, double-blind, parallel-group, 160 mg/day for 2 months. Not PubMed-indexed.

Stressed but healthy adults

Manufacturer reports reduced anxiety (DASS-21), depression and HAM-A scores and lower cortisol versus placebo. Treat as manufacturer evidence; the dual oligosaccharide standardization is its differentiator.

2
Ashwagandha class evidence

Independent systematic reviews and randomized trials of Withania somnifera.

Pooled stressed/anxious adults

Consistent reductions in perceived stress, anxiety and cortisol versus placebo — among the strongest evidence bases for any adaptogen.

Side effects and drug interactions

Common Potential side effects

Generally well tolerated; mild drowsiness or gastrointestinal upset can occur.
Can be mildly thyroid-stimulating; caution in hyperthyroidism.
May increase thyroid hormone — monitor if on thyroid medication.
Pregnancy: avoid — traditionally considered abortifacient at higher doses.
Rare reports of liver injury with some ashwagandha products.

Important Drug interactions

Sedatives/benzodiazepines/alcohol: additive sedation possible.
Thyroid medication: may raise thyroid hormone levels — monitor.
Immunosuppressants: ashwagandha can stimulate immune activity — use with clinician guidance.
Antidiabetic/antihypertensive: possible mild additive effects.

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Frequently asked questions about Asera™ (Standardized Ashwagandha — Withanolides + Oligosaccharides)

How is Asera different from other ashwagandha?

Asera is Vidya Herbs' ashwagandha with a dual standardization — 10% withanolides plus 30% oligosaccharides — taken at a low 160 mg/day in its trial. The withanolides drive the adaptogenic effect; the oligosaccharide standardization is its branding differentiator.

Does ashwagandha really lower stress?

Yes — ashwagandha is one of the best-evidenced adaptogens, with multiple randomized trials and reviews showing reduced stress, anxiety and cortisol. Asera inherits that generic evidence; its own specific trial is manufacturer-run and not yet PubMed-indexed.

What is Asera?

Asera™ is a branded ashwagandha (Withania somnifera) root extract from Vidya Herbs with a dual standardization — 10% withanolides plus 30% oligosaccharides — marketed for stress, mood and sleep.

What is Asera used for?

Asera is researched primarily for Stress & Anxiety, Mood & Mental Health, and Sleep Health. Ashwagandha has repeatedly reduced perceived stress and anxiety scores versus placebo across randomized trials; Asera's manufacturer trial reports the same with a 160 mg/day dose. The class evidence is strong.

What is the recommended dosage of Asera?

The clinically studied dose is Manufacturer trial: 160 mg/day for 2 months. Ashwagandha stress trials generally use 250–600 mg/day of a standardized root extract. Always follow the product label and check with a healthcare provider for personal advice.

Is Asera safe, and does it have side effects?

For most healthy adults, Asera is well tolerated at studied doses. Reported effects can include: Generally well tolerated; mild drowsiness or gastrointestinal upset can occur. Can be mildly thyroid-stimulating; caution in hyperthyroidism. It may also interact with some medications. Asera is not right for everyone, so check with a healthcare provider first if you are pregnant or breastfeeding, have a medical condition, or take prescription medication.

Does Asera interact with any medications?

Possible interactions include: Sedatives/benzodiazepines/alcohol: additive sedation possible. Thyroid medication: may raise thyroid hormone levels — monitor. If you take prescription medication, check with a pharmacist or doctor before using it.

How strong is the scientific evidence for Asera?

NutraSmarts rates the evidence for Asera as Moderate (3 out of 5). It is backed by 2 clinical trials and 1 cited reference summarized on this page. A higher rating reflects more, larger, and better-designed human studies.

References(1 citations)

Evidence ratings on NutraSmarts are based on the totality of human clinical research, with emphasis on randomized controlled trials, meta-analyses, and systematic reviews. The references below directly support claims made throughout this page.

  1. Arumugam V, Vijayakumar V, Balakrishnan A, B Bhandari R, Boopalan D, Ponnurangam R, et al. Effects of Ashwagandha (Withania Somnifera) on stress and anxiety: A systematic review and meta-analysis. Explore (New York, N.Y.). 2024;20(6):103062. doi: 10.1016/j.explore.2024.103062.PubMedUsed to support: A systematic review of ashwagandha (Withania somnifera) for stress and anxiety — the strong generic evidence behind Asera, which is a standardized ashwagandha. Asera's own branded trial is not PubMed-indexed.