Product Description
Refined authentic donkey-hide, peptide content ≥50% standardized – a raw material combining traditional nourishing with modern collagen peptide technology.
Product Description
In the field of health supplements and functional foods, the authenticity of raw materials and verifiability of ingredients directly determine product trust. Donkey-hide Gelatin Extract is based on authentic donkey-hide from, Shandong, and through boiling, enzymatic hydrolysis, and refining processes, it concentrates and standardizes collagen peptides and 18 amino acids, providing brands with traceable traditional nourishing raw materials.
Donkey-hide Gelatin Extract (Ejiao extract) uses authentic donkey-hide from Shandong as the raw material, and is produced through boiling, concentration, enzymatic hydrolysis, and refining processes. Collagen peptides and 18 amino acids are the core active ingredients, and the peptide content is standardized at ≥50%. It is a characteristic animal-derived raw material for traditional nourishment as well as functional foods and personal care products.
Ejiao is a famous precious traditional Chinese nourishing medicinal material and is listed as a product protected under the national geographical indication. County in Shandong is the core production area with an annual output value exceeding 10 billion RMB. In recent years, the application of Ejiao has grown rapidly in the fields of health supplements and cosmetics.
This product adopts a low-temperature extraction-vacuum concentration-spray drying (or freeze-drying) process to ensure stable content of characteristic components and high activity in the extract. Different extraction ratios and standardized specifications can be customized according to customer requirements.
The product is quality-controlled according to the “Chinese Pharmacopoeia” and relevant GMP standards. Each batch comes with a Certificate of Analysis (COA), covering key testing indicators such as characteristic component content, loss on drying, ash, heavy metals (Pb, As, Cd, Hg), pesticide residues, aflatoxins, and microorganisms.
Why Choose Nutralighting
Authentic Raw Material: Donkey-hide from the core production area in, Shandong, with geographical indication; pig/cow DNA is not detected, ensuring verifiable purity.
Standardized Peptides: Peptide content standardized at ≥50%, retaining the full activity of small-molecule collagen peptides.
Quality System: Full-process control with ISO 22000 / HACCP / GMP, each batch comes with COA, supporting compliance in China and Southeast Asian markets.
Basic Information
| Item | Content |
| Product Name | Donkey-hide Gelatin Extract |
| Alias | Donkey-hide gelatin, Fu Zhi gelatin |
| Chinese name | Ejiao Extract |
| Main components | Amino acids, collagen |
| Main specifications | Peptide content ≥50% |
| Target market | China, Southeast Asia |
| Core application areas | Qi and Blood Conditioning; Immune Support; Skin Health |
| Product Category | Traditional Chinese Medicine / TCM |
Standard Specifications (COA)
The following specifications are for general reference; the specific values shall be based on the COA report of each batch.
| Test Items | Standards |
| Total Nitrogen (calculated as protein) | ≥12% |
| Moisture | ≤15.0% |
| Pig/Beef Components (DNA Testing) | Not Detected |
| Lead (Pb) | ≤1.0 mg/kg |
| Arsenic (As) | ≤2.0 mg/kg |
| Cadmium (Cd) | ≤0.5 mg/kg |
| Mercury (Hg) | ≤0.1 mg/kg |
| Aflatoxin B1 | ≤5.0 μg/kg |
| Total microbial count | ≤1×10³ CFU/g |
| Salmonella | Not detected |
Introduction to Raw Materials
The raw material of this product is solid glue made from the dried or fresh skin of donkeys (Equus asinus) through boiling and concentration. It is mainly produced in Shandong, Hebei, Henan, and other regions, with the most famous production in County, Shandong. Ejiao is sweet in taste and neutral in nature, belonging to the lung, liver, and kidney meridians. Its main components are collagen hydrolysates and various amino acids.
Donkey-hide Gelatin Extract Core Efficacy
The following summary of efficacy is based on published scientific research and traditional usage. The specific efficacy needs to be comprehensively evaluated in conjunction with product formulation and dosage.
Ejiao is a traditional tonic material, made by boiling, concentrating, and enzymatically refining donkey hide. It is rich in 18 kinds of amino acids (total content ≥70%), of which essential amino acids account for more than 40%, and peptides are standardized at ≥50%.
Modern studies show that small-molecule collagen peptides derived from Ejiao have applications in regulating qi and blood and in skin health: its collagen hydrolysates help increase the water content of the skin stratum corneum and reduce transepidermal water loss (TEWL).
Traditional applications and in vitro studies also suggest potential value in supporting hematopoiesis. The specific efficacy should be evaluated in combination with product formulation, dosage, and applicable regulations; this information does not constitute medical or disease treatment claims.
Regulatory and Regional Access Status
The following information is compiled based on publicly available regulatory data. For actual market access, please refer to the latest regulations of the target country.
| Region/Country | Regulatory status | Key Notes |
| China (NHC/NMPA) | Health Food Ingredients / New Dietary Ingredients | According to the 2020 edition of the Chinese Pharmacopoeia and standards such as GB 16740; some varieties have been included in the health food ingredient catalog or can be used in general food catalogs, and the latest regulatory status of each variety needs to be specifically verified. |
Note: Regulatory information is time-sensitive. Before export, it is recommended to confirm the latest compliance requirements with the regulatory authorities of the target market or professional consultants.
Application Directions and Recommended Dosage
| Application Direction | Recommended Addition Amount | Suitable Dosage Form | Remarks |
| Oral Solid Beverages / Granules | Determined According to Specifications | Strip-packed, bag-packed, can-packed | Can be blended with other functional ingredients, recommended to control amount using standardized extracts |
| Pressed candy / capsules | Determined according to specifications | Tablets, hard capsules | Each unit is recommended to contain 250~500 mg of extract, 2~3 times daily |
| Oral liquid / functional beverages | Determined according to specifications | Glass bottles, PET bottles | It is recommended to disperse in warm water first before adding to the system, pay attention to pH stability |
| Personal care and skincare products | 0.1~2.0%(w/w) | Lotion, serum, mask | Solubility and stability need to be evaluated according to the formulation system |
Recommended Daily Dosage Reference
- General Health Use: Use according to product specifications and the dosage recommended by the formulator
- Personal Care and Skin Care: The amount added in formulations depends on the specific product, recommended 0.1~2.0%
Other Notes
- Donkey-hide Gelatin Extract is an animal-derived product (donkey-hide). Some individuals may have allergic reactions, so it is recommended to start with a small dose for first-time use.
Take Action Now
Whether you are developing health supplements, functional foods, or personal care products, Nutralighting can provide Donkey-hide Gelatin Extract solutions ranging from standard specifications to OEM/ODM customization, along with a complete technical data package (COA / MSDS) and regulatory consultation.
Contact us now to obtain samples and quotations to upgrade your formulations.
Appendix: References
(The following references are for technical reference; some are open access and can be accessed via PubMed/PMC or the journal’s official website)
[1] Sun S. et al., Chinese Journal of Integrative Medicine, 2018; 24: 612-618.
[2] Zhou J. et al., Journal of Ethnopharmacology, 2013; 149: 651-657.
[3] Zhang Y. et al., Dermatology and Therapy, 2020; 10: 115-125.
Frequently Asked Questions
Nutralighting provides a full traceability system from source to finished product. Each batch includes DNA testing results (pig/ cow/ beef components not detected), a Certificate of Origin, and supplier qualification documentation. Donkey-hide is sourced exclusively from the core production area in, Shandong, a region recognized under China national geographical indication protection. We support third-party laboratory verification and can arrange virtual or on-site factory audits upon request.
Yes. While our standard specification lists peptide content at ≥50%, we offer flexible customization based on your formulation requirements. We can adjust extraction ratios (e.g., 5:1, 10:1), provide different particle sizes (80-200 mesh), and tailor amino acid profiles for specific applications in functional foods, capsules, beverages, or cosmetic formulations. Minimum order quantities are negotiated case by case depending on specification complexity.
Donkey-hide Gelatin Extract powder has a shelf life of 24 months when stored in a cool, dry place away from direct sunlight, at temperatures between 15-25°C and relative humidity below 60%. We offer packaging in 1 kg aluminum foil bags with double-seal closure, 5 kg and 25 kg fiber drums with inner polyethylene lining, or customized packaging per buyer requirements. All packaging materials meet food-grade safety standards, and each package is clearly labeled with batch number, production date, and expiry date.
Packaging & Shipping
Standard Packaging
- Standard Packaging: 25 kg/double-layer composite film bag in cardboard drum; or customized as per customer requirements
- Custom Packaging: 500 g, 1 kg, 5 kg, 10 kg aluminum bag packaging, support customer Logo printing
Shipping Terms
- Express: DHL / FedEx / UPS (3–7 days)
- Air freight: 7–15 days
- Sea freight: 15–40 days (FCL / LCL)
- Incoterms: EXW / FOB / CIF
Shelf Life & Storage
- Shelf life: 24 months in original sealed container
- Store in a cool, dry place away from direct sunlight
- Keep container tightly closed after opening
