OYAH INGREDIENT LIBRARY

Ashwagandha

Ashwagandha research is preparation-specific. Human trials usually test standardized root or root-and-leaf extracts—not every powder, extract or finished formula carrying the same ingredient name.

Evidence reviewUpdated 11 October 2026
AStress response / botanical extract
Evidence signalPromising for perceived stress; product match matters
Research focusStress scores, anxiety measures, sleep and cortisol
Key qualifierExtract, withanolide specification, amount and duration

What it is

Withania somnifera is a botanical used in Ayurvedic traditions. Modern trials often study extracts standardized to a stated concentration of withanolides, a group of naturally occurring compounds. Root powder, root extract and combined root-and-leaf extract are not interchangeable.

What human research suggests

Systematic reviews report reductions in some stress and anxiety scores, but trials differ in preparation, amount, duration, population and risk of bias. This supports a cautious “may support” interpretation. It does not establish treatment for an anxiety disorder or prove that every ashwagandha formula produces the same result.

HOW THIS RELATES TO OYAH

Ashwagandha in an OYAH formula.

The related product page shows the current ingredient list and directions. Compare those details with each paper before deciding how closely the evidence applies. OYAH does not claim that the finished formula was tested in the linked studies.

Bye StressView Bye Stress
Ingredient studyTests a defined ingredient, preparation and protocol.Finished-product evidenceWould require a clinical trial of the complete formula.Certificate of AnalysisReports the tests shown for a sample or lot; it does not establish benefit.
SAFETY & CONTEXT

What to consider before use.

Short-term use appears reasonably tolerated in many adults, but long-term safety remains unclear. Reported concerns include drowsiness, stomach upset, diarrhea, vomiting, thyroid effects and rare liver injury. Avoid use during pregnancy and breastfeeding. Speak with a clinician if you have thyroid, autoimmune or liver disease, upcoming surgery, or use sedatives, thyroid medicines, diabetes medicines, blood-pressure medicines or immunosuppressants.

This guide is educational and is not medical advice. Speak with a qualified healthcare professional about pregnancy, breastfeeding, medical conditions, medicines, surgery or persistent symptoms.

READ THE SOURCES

Follow the evidence.

Each link opens the publication, indexed record or government guidance. Study findings remain limited to the preparation and protocol researchers examined.

  1. NIH ODS: Ashwagandha—stress, anxiety and sleepGovernment evidence and safety review · updated 2025 ↗
  2. Ashwagandha for anxiety and stress2022 systematic review and dose-response meta-analysis · PMID 36017529 ↗
  3. Ashwagandha and stress or anxiety outcomes2024 systematic review and meta-analysis · PMID 39348746 ↗
  4. NCCIH: usefulness and safetyGovernment safety guidance and interaction context ↗
  5. Ashwagandha extract in adults experiencing stress2019 randomized placebo-controlled trial; extract-specific findings · PMID 31517876 ↗
Current product directory

Know the product. Read the evidence.

Compare the current OYAH range, then open the product-specific evidence and ingredient guides. Ingredient studies do not establish the benefits of a finished OYAH formula.