Xi'an DN Biology offers pharmaceutical-grade Wild Yam Extract Powder standardized to 90% Diosgenin, verified exclusively by HPLC for precise bioactive potency. Sourced from premium Dioscorea Villosa L. roots and processed through our GMP-certified facility equipped with 4×6m³ extraction vessels and integrated concentration systems, this extract delivers consistent quality for nutraceutical and cosmetic applications.
Our production capacity handles up to 3,000 tons of botanical materials annually. Each batch undergoes rigorous testing in our independent laboratory using advanced analytical instruments including HPLC and UV-Vis spectrophotometers. With ISO 9001, HACCP, Kosher, and Halal certifications, you receive traceable, compliant ingredients backed by third-party lab verification. Stock availability reaches 100 tons with delivery within 7 days for ready inventory.
| Parameter | Specification |
|---|---|
| Latin Name | Dioscorea Villosa L. |
| Active Ingredient | Diosgenin 90% |
| Extraction Ratio | 10:1 (TLC) |
| Testing Method | HPLC |
| Appearance | Off-white Fine Powder |
| Mesh Size | 80 mesh (95% pass rate) |
| Loss on Drying | ≤5% |
| Heavy Metals | ≤10ppm |
| Solubility | Slightly water-soluble, highly ethanol-soluble |
| Microbial Count | Total plate count ≤1000cfu/g |
| Shelf Life | 24-36 months (proper storage) |
| MOQ | 1kg |
| Packaging | 25kg/drum (customizable) |
Verified Potency Through HPLC Testing
Our HPLC study separates the real Diosgenin molecules, while UV methods overestimate the amount by two to three times. This makes sure that you get the exact amount of bioactive material that is written on your Certificate of Analysis. Don't guess. Don't make up numbers. Just exact potency for your formulations that can be checked.
Superior Physical Properties for Manufacturing
Consistency is needed on your production lines. Our extract has particles that are just the right size; 100% of them pass an 80-mesh screen, which means they flow easily for encapsulation and tableting. The controlled moisture level below 5% stops the product from clumping and microbes from growing while it is being stored and processed.
Exceptional Thermal Stability
Keep the strength while making. Our Wild Yam Extract Powder can handle short-term processing at temperatures up to 80°C, which makes it perfect for hot emulsification in skin creams and heated tablet compression without losing any of its Diosgenin content.
Full Supply Chain Traceability
Every step is recorded, from our built-in planters to your building. You get full evidence of the chain of custody, batch records, and pesticide residue reports. This openness helps your quality audits and regulatory submissions.
Nutraceutical Formulations
Feel confident when making products for women's health. The diosgenin works by changing receptor paths, which naturally helps keep hormones in balance. It works great for capsules, tablets, and liquid extracts aimed at the health market.
Cosmetic & Personal Care Products
Add to skin care products that fight age. In addition to protecting cells, the bioactive compounds help make collagen. When mixed properly with the right ingredients, it works well in creams, serums, and lotions.
Functional Food & Beverage Development
Native powder doesn't mix well with water, but you can ask for our nano-emulsified grade for use in drinks. We make personalized versions that are water-dispersible and use cyclodextrin carriers to keep functional drinks from settling.

The Critical Difference
There are a lot of sellers who sell extraction ratios like 10:1 or 20:1. These numbers only show the concentration of the raw material, not the bioactive content. A 10:1 ratio means that 10 kg of raw yam make 1 kg of powder, but it doesn't say anything about the amount of Diosgenin that is present.
Standardized Extracts Deliver Results
Our standard method promises that every batch will have 90% diosgenin. This level of accuracy makes dosing consistent in regulated medical products. You get rid of variations in the recipe and make sure that every production run meets the claims on the label.
Best Conditions for Storage
Keep your item somewhere cool and dry, out of direct sunlight. To keep things stable for 24 to 36 months, use vacuum-sealed aluminium foil bags. Diosgenin stays mostly the same, but being exposed to air makes the powder clump together and makes it possible for microbes to grow.
Thoughts on Formulation
The extract has properties that make it lipophilic. For goods that are made with water, add the right surfactants or ask for our water-dispersible grade. Tinctures and softgels made from lipids and ethanol dissolve well and are bioavailable without any extra work.
Multiple International Certifications
We have ISO 9001, ISO 22000, GMP, FSSC 22000, HACCP, Halal, Kosher, and FDA compliance certificates for our building. These are not just certificates on the wall; they are daily operating standards that make sure every batch meets the highest quality standards set by the international community.

Advanced Analytical Testing
In our independent lab, we test every output batch in a lot of different ways. We check for heavy metals, herbicide residues, microbial contamination, and the amount of active ingredients. You get thorough Certificates of Analysis that can be checked by a third party if you ask for it.
Sample Service Before Shipping
Check the quality first before placing a full order. We offer free samples before they are shipped so that you can test them yourself and make sure they work with your formulations. This gets rid of doubt and boosts trust in your supply chain.

Specifications Made Just For You
Need a different amount of Diosgenin? We make extracts that are standardized to a level between 5% and 98%. Need certain sized particles, carrier adds, or custom blends? Our technical team works with your R&D staff to create solutions that are just right for you.
Quick Turnaround on Production
Once payment is confirmed, items that are in stock will be shipped within 7 days. Depending on the specs and quantity, custom formulations usually take 7 to 15 days to make. With an annual capacity of 3,000 tons, we can safely meet your volume needs.
Complete Supply Chain Support
We offer DDP shipping services and a number of other shipping options all over the world. Our skilled export team takes care of paperwork, clearing customs, and coordinating logistics. We make sure that delivery from our building to your warehouse goes smoothly.
Q: Does the medicine really have progesterone in it?
A: Not really. This is a common misunderstanding in the industry. Diosgenin, which is in the powder, is a precursor molecule. Diosgenin can't be changed into progesterone in the human body because our bodies don't have the right enzymes. This change has to happen in a lab. The extract doesn't directly replace hormones; instead, it changes the way receptors work.
Q: What is the normal shelf life and how should it be stored?
A: The powder stays stable for 24 to 36 months if it is kept properly in cool, dry places out of direct sunlight in vacuum-sealed aluminium foil bags. Diosgenin is stable, but when it gets wet, the powder forms crystals and microbes grow.
Q: Why is HPLC testing better for this extract than UV testing?
A: UV testing isn't very accurate because it picks up all saponins, so the results are often two to three times higher than the real Diosgenin level. HPLC separates the specific Diosgenin molecule, making it the only accurate way for professionals to measure potency in business transactions.
Q: Can this powder be used in drinks that dissolve in water?
A: Native extract doesn't mix well with water. For use in functional drinks, ask for our nano-emulsified version or water-dispersible grade, which uses carriers like cyclodextrin to keep the mixture from settling and make sure it spreads evenly.
Q: What's the difference between standardized extracts (like 90% Diosgenin) and extraction ratios (10:1)?
A: Ratios only show the amount of raw materials used and don't promise effectiveness. Standardized extracts make sure that the exact amount of active ingredient is used, which is important for making sure that clinical products follow the rules for dosing and that the claims on the label are true.
Ready to source premium Wild Yam Extract Powder for your formulations? Email us at Info@dnbiology.com to receive product documentation, pricing, and customized solutions for your business needs.