Ashwagandha Extract Powder

Our high-quality Ashwagandha extract powder is derived from the carefully selected roots of Withania somnifera, also known as Indian Ginseng. This potent botanical extract is a rich source of key bioactive constituents, including withanolides, alkaloids, and steroid lactones, traditionally utilized in Ayurvedic medicine. This revered botanical supplement has been a cornerstone of traditional Ayurvedic medicine for centuries, prized for its ability to promote balance and resilience. Our premium extract is derived from the roots of the Withania somnifera plant, a small evergreen shrub native to India, the Middle East, and parts of Africa.

Committed to Quality and Sustainability

We are committed to providing a high-quality Ashwagandha extract sourced from sustainably cultivated Withania somnifera plants. Our cultivation practices prioritize environmental responsibility. Our extraction process is designed to be efficient and environmentally friendly, ensuring the preservation of the plant's integrity and its valuable bioactive compounds.

The specifications of Ashwagandha (Withania somnifera) extract are typically categorized based on the concentration of Withanolides, as these compounds are considered its primary bioactive constituents. Common specifications include:

Withanolides Content:

• 5% Withanolides: Suitable for general dietary supplements intended for daily wellness.
• 10% Withanolides: Applicable for mid-potency supplements designed for users requiring a higher concentration of active compounds.
• 25% Withanolides: Represents a high-purity specification appropriate for high-potency supplements or specific nutraceutical applications.

Other Specification Parameters:

• Appearance: Typically a brownish-yellow to brownish powder.
• Particle Size: Usually 100% passes through an 80-mesh sieve, ensuring powder uniformity and solubility.
• Moisture Content: Generally controlled to ≤10% to ensure product stability and shelf life.
• Heavy Metal Content: Strictly controlled within safe limits, for example:

Lead (Pb): ≤10 ppm

Arsenic (As): ≤2 ppm

Cadmium (Cd): ≤1 ppm

Mercury (Hg): ≤0.1 ppm

• Microbial Limits: Ensures the product meets food-grade or pharmaceutical-grade standards, for example:

Escherichia coli (E. coli): Negative

Salmonella: Negative

The Withanolide Family

1. Withanolide A

The most abundant and well-studied withanolide in W. somnifera root. Withanolide A is the primary marker compound used for standardization and HPLC quantification. Its mechanisms include:

HPA axis modulation - reduces hypothalamic-pituitary-adrenal axis hyperactivation, lowering cortisol output under chronic stress conditions

GABAergic activity - modulates GABA-A receptor signaling, contributing to anxiolytic and sleep-promoting effects

Neuroprotective activity - supports neuronal differentiation and axon growth in preclinical models

2. Withaferin A

The most pharmacologically potent withanolide - and the primary reason leaf-derived extracts command attention in oncology and anti-inflammatory research. Withaferin A's mechanisms include:

NF-κB inhibition - downregulates the master inflammatory transcription factor

Proteasome inhibition - of significant interest in cancer biology research

HSP90 inhibition - relevant to heat shock protein-mediated cellular stress responses

Withaferin A is present at higher concentrations in leaf extracts than root extracts - a key reason why root-only and leaf-containing grades differ in their application profiles.

3. Withanosides IV & VI

Glycowithanolides that contribute to Ashwagandha's neuroprotective and cognitive-enhancing effects. Withanoside IV has demonstrated the ability to promote neurite outgrowth and synaptic reconstruction in preclinical models - providing a mechanistic basis for Ashwagandha's emerging cognitive health applications.

4. Sitoindosides VII–X

A group of withanolide glycosides that contribute to the adaptogenic and immunomodulatory activity of the full-spectrum root extract. These compounds are preferentially preserved in full-spectrum extraction approaches.

Compound Summary Table

1. Raw Material Preparation

• Harvesting and Drying: Roots of Ashwagandha are harvested and air-dried at ambient temperature (~25°C) for approximately one week to reduce moisture content.
• Milling: Dried roots are milled into fine powder to facilitate extraction.

2. Extraction Process

• Solvent Selection: Water, methanol, or water-methanol mixtures are commonly used. Solvent choice affects yield and active compound content.
• Extraction Methods:
• Soxhlet Extraction: Powdered roots are subjected to reflux extraction with selected solvent. Yields up to 18.61% can be achieved with water-methanol mixtures.
• Ultrasound-Assisted Extraction (UAE): Ultrasound treatment enhances extraction efficiency, shortening extraction time. Yields up to 11.21% have been observed for 5–10 min treatment.

3. Filtration and Clarification

• Filtration: The extract solution is passed through filter paper to remove solid impurities.
• Centrifugation (Plate-Frame + Butterfly Centrifuge): The filtrate is clarified using advanced centrifugation equipment to remove fine particulates, improving clarity and stability.

4. High-Temperature Short-Time (HTST) Sterilization

• The clarified extract undergoes high-temperature short-time sterilization to inactivate microbial contaminants while preserving bioactive compounds. This ensures product safety and extends shelf life.

5. Concentration and Drying

• Concentration: Sterilized extract is concentrated under reduced pressure using a rotary evaporator at ~40°C.
• Drying and Granulation (Dry Method): Concentrated extract is dried and optionally processed via dry granulation equipment to produce uniform granules or powder with controlled particle size.

6. Purification and Analysis

• Dissolution and Redissolution: Dried extract is redissolved for analytical testing.
• HPTLC Analysis: Quantitative determination of key active compounds (e.g., Withanolide A) using high-performance thin-layer chromatography ensures content accuracy and purity.

7. Quality Control and Validation

• Specificity and Peak Purity: Compare Rf values and UV spectra with reference standards.
• Method Validation: Validate extraction method for linearity, accuracy, limit of detection (LOD), and limit of quantitation (LOQ).

8. Final Product

• Packaging and Storage: Purified extract, in powder or granule form, is packaged and stored under controlled conditions to maintain stability and bioactivity.

Here are some of the potential benefits:

Stress reduction

Ashwagandha is a well-known adaptogen that helps the body manage stress by regulating the hypothalamic-pituitary-adrenal (HPA) axis. Clinical studies have shown that Ashwagandha supplementation can significantly reduce cortisol levels, a biomarker of stress, and improve perceived stress and anxiety. 

Improved sleep

Ashwagandha has been shown to improve sleep quality, which is an important indicator of better stress management. Studies suggest that its anxiolytic and adaptogenic properties may contribute to enhanced sleep quality.

Boosted immunity

While more robust human clinical trials are needed, preclinical research indicates that Ashwagandha may have immunomodulatory effects, potentially enhancing the immune system. Its antioxidant and anti-inflammatory properties may also support overall immune health.

Increased energy

Ashwagandha may help increase energy levels and reduce fatigue. It has also been shown to improve physical performance, including strength, power, and endurance, likely through its effects on cortisol regulation and oxidative stress.

Improved cognitive function

Several studies suggest that Ashwagandha may enhance cognitive function, including memory, focus, and concentration. Its neuroprotective properties and ability to reduce stress and anxiety may contribute to these cognitive benefits.

Support for thyroid health

Ashwagandha may help regulate thyroid function, although more research is needed to fully understand its mechanisms and efficacy in this area.

Anti-inflammatory properties

Ashwagandha has demonstrated anti-inflammatory effects, which may help reduce inflammation in the body. This is partly due to its rich content of bioactive compounds such as withanolides.

Ashwagandha extract powder is derived from the roots of the withania somnifera plant and is used in a variety of applications due to its adaptogenic properties and potential health benefits. Here are some key application areas:

Nutritional health products and dietary supplements

Ashwagandha is commonly used in capsules, tablets, and powders to support stress relief, enhance energy levels, and promote overall health.

Traditional Medicine

In Ayurvedic practices, Ashwagandha is used to promote vitality, reduce anxiety, and improve cognitive function.

Functional Foods and Beverages

Add to smoothies, protein powders and health drinks for health benefits and adaptogenic properties.

Sports Nutrition

Ashwagandha is incorporated into pre- and post-workout supplements to enhance endurance, recovery, and muscle strength.

Application Sector	Recommended Grade	Dosage Range	Functional Positioning
Stress & Adaptogen Supplements	WS-W5 / WS-FS	300–600 mg/day	Cortisol reduction, HPA axis support
Sleep Health Formulas	WS-W5 / WS-FS	300–600 mg/day	Sleep onset, sleep quality, GABAergic
Anxiety & Mood Support	WS-W5	300–500 mg/day	Anxiolytic, mood stabilization
Testosterone / Male Health	WS-W5 / WS-W10	300–600 mg/day	Testosterone support, fertility
Sports Performance & Recovery	WS-W5 / WS-W10	300–600 mg/day	VO2 max, strength, recovery
Cognitive / Nootropic Formulas	WS-FS	300–600 mg/day	Memory, focus, neuroprotection
Women's Wellness	WS-W2.5 / WS-FS	300–500 mg/day	Hormonal balance, stress, energy
Thyroid Support	WS-W5	300–600 mg/day	T3/T4 modulation
Healthy Aging / Longevity	WS-FS	300–600 mg/day	Cellular stress resilience, vitality
Combination Adaptogens	WS-W5 + Rhodiola / Eleuthero	Variable	Synergistic stress stack

The critical differentiator between commodity Ashwagandha powder and a genuine standardized extract is withanolide quantification by HPLC combined with pesticide multi-residue testing - two quality gates that commodity suppliers routinely skip.

Quality control for Ashwagandha Extract Powder requires vigilance at three specific risk points: withanolide quantification method, pesticide contamination (a documented risk in Indian-sourced botanicals), and species/part substitution (root vs. leaf adulteration).

In-House Testing Capabilities

What Ships With Every Order

✅ Batch-specific Certificate of Analysis (COA)

✅ MSDS / Safety Data Sheet

✅ Heavy metals report

✅ Microbiological testing report

✅ Botanical identity verification

✅ Pesticide residue report

✅ Allergen and GMO declaration

✅ Country of origin documentation

1. Uncompromising Product Quality Assurance:

• Rigorous Quality Management System: Shaanxi Jiuyuan Bio operates under a comprehensive quality control system, with production processes strictly adhering to GMP (Good Manufacturing Practice) guidelines. This ensures full traceability for every batch of product.
• Extensive Certification Portfolio: The company has achieved numerous domestic and international industry certifications, including ISO9001 Quality Management System, ISO22000 Food Safety Management System, HACCP certification, US FDA Inspection Certification, Halal certification, and Kosher certification.
• State-of-the-Art Manufacturing Facilities: Our expansive 70,000+ square meter facility houses 10 production lines with an annual capacity of over 6,000 tons. It is equipped with a modern testing and control center to guarantee product integrity.

2. Robust Research & Development and Innovation Capabilities:

High-Caliber R&D Team: We prioritize product research and innovation, supported by a highly qualified R&D team and advanced scientific instrumentation. We maintain collaborative relationships with multiple research institutions to stay at the forefront of industry advancements.

Customized Formulation Services: We offer tailored product development and manufacturing services to meet the unique specifications and requirements of our diverse clientele.

3. Extensive Industry Expertise and Product Portfolio:

• Comprehensive One-Stop Service: Shaanxi Jiuyuan Bio integrates R&D, production, and sales, providing customers with a seamless, end-to-end service from raw materials to finished products.
• Diversified Product Range: Our extensive product portfolio includes a wide array of botanical extracts, health food ingredients, fruit and vegetable powders, and feed additives, catering to various sectors including food, dietary supplements, and cosmetics.

4. Reliable Supply Chain and Delivery Capabilities:

• Dedicated Cultivation Bases: We maintain exclusive medicinal herb cultivation bases in the Qinling Mountains, ensuring the quality and consistent supply of premium raw materials from the source.
• Efficient Production Capacity: Our modern industrial facilities and advanced production equipment guarantee efficient manufacturing processes and timely delivery of your orders.

5. Global Market Reach and Customer Support:

• Extensive Global Market Coverage: Our customer base has expanded beyond domestic borders to encompass international markets, reaching 23 countries across Europe, the Americas, and Southeast Asia.
• Professional and Transparent Customer Service: We are committed to an "Open, Transparent, and Honest" production philosophy. We welcome domestic and international clients to conduct on-site factory inspections, ensuring complete transparency in our partnerships.

6. Sustained Market Competitiveness:

• Leading Industry Position: Shaanxi Jiuyuan Bio has established a strong market reputation in the botanical extract industry, underpinned by our advanced production technologies and stringent quality control measures.
• Continuous Innovation Driver: Driven by scientific and technological innovation, we continuously integrate industry resources and expand our product application areas to enhance our core competitiveness.

Q1: What is the difference between root extract and leaf extract?

Root extracts are the traditional and most clinically validated form - all major clinical trials on stress, cortisol, testosterone, and sleep have used root-derived extracts. Leaf extracts contain higher concentrations of Withaferin A, which has potent anti-inflammatory and research-stage anti-cancer properties but also a higher potential for cytotoxicity at elevated doses. For mainstream supplement applications (stress, sleep, testosterone, sports), root-only extract is the preferred and most defensible choice.

Q2: What is the recommended daily dose of Ashwagandha extract?

The most clinically supported dose range is 300–600 mg per day of a standardized extract (≥5% withanolides), typically split into two doses. This dose range has been used across the majority of positive RCTs for stress, cortisol, sleep, and testosterone outcomes. Higher doses up to 1,250 mg/day have been used in sports performance trials.

Q3: How does Ashwagandha reduce cortisol?

Ashwagandha's primary anti-stress mechanism operates through HPA axis modulation. Withanolides suppress the hypothalamic-pituitary-adrenal axis's stress response, reducing the signal cascade that drives cortisol secretion from the adrenal glands. Additionally, GABAergic activity contributes to the anxiolytic effect by modulating inhibitory neurotransmission - reducing the perceived intensity of psychological stress stimuli.

Q4: Is Ashwagandha safe for long-term use?

Withania somnifera root has a documented history of use in Ayurvedic medicine spanning over 3,000 years. Modern clinical trials of up to 90 days duration have reported no serious adverse events at standard doses. Rare case reports of liver injury have been associated with very high doses or leaf-containing products - reinforcing the importance of root-only, dose-appropriate formulations. Harvard Health notes that Ashwagandha is generally well-tolerated, though pregnant women and individuals on thyroid or immunosuppressant medications should consult a physician.

Q5: Can Ashwagandha be combined with other adaptogens?

Yes - and combination adaptogen formulas are among the fastest-growing supplement formats. Ashwagandha pairs well with:

Rhodiola rosea - complementary stress mechanisms (HPA axis + AMPK activation)

Eleuthero (Siberian Ginseng) - broad adaptogenic synergy

L-Theanine - GABAergic synergy for stress and sleep

Magnesium glycinate - HPA axis and sleep synergy

Panax Ginseng - energy and testosterone synergy

Q6: Do you offer organic-certified Ashwagandha Extract?

Yes. USDA NOP and EU Organic certified grades are available, sourced from certified organic cultivation partners in Rajasthan. Organic certification documentation is provided with every order.

Q7: How do you address pesticide contamination risk in Indian-sourced Ashwagandha?

Pesticide contamination is a documented and serious quality risk for Indian-origin botanicals. Our mitigation protocol includes: supplier qualification with agricultural practice audits, incoming lot pesticide pre-screening before processing, and full GC-MS/MS multi-residue pesticide testing on every finished batch against EU MRL standards - the world's most stringent pesticide limits for botanical ingredients.

Q8: What is the regulatory status of Ashwagandha in the US and EU?

In the United States, Withania somnifera root extract is used as a dietary supplement ingredient under DSHEA with a long history of use. In the EU, Ashwagandha is permitted as a botanical food supplement ingredient in most member states, though Novel Food status varies by specific extract type and application. We provide full botanical identity documentation, safety data, and historical use records to support regulatory submissions in any target market.

At Jiuyuan Biotech, we supply Ashwagandha Extract Powder in HPLC-verified, root-authenticated grades - from WS-W2.5 to WS-W10 and full-spectrum formats - backed by comprehensive pesticide testing, 10+ international certifications, and batch-specific COAs that give your quality team everything they need to make a defensible sourcing decision.

Whether you are building a stress and cortisol formula, a sleep health product, a testosterone support supplement, or a premium adaptogen blend, we have the grade, the documentation, and the supply chain integrity to support your formulation from sample to commercial scale.

📧 Email us: info@jiuybiotech.com

🌐 Visit us: www.jiuyuanbio.com

Sample requests, COA downloads, and technical consultations are available at no charge. Our team typically responds within 24 business hours.