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D Biotin, also known as vitamin H and coenzyme R, is a water-soluble vitamin and also belongs to the B vitamin group, B7. It is essential for the synthesis of vitamin C and is indispensable for the normal metabolism of fats and proteins. It is a necessary nutrient to maintain the human body's natural growth, development and normal human function and health.
D Biotin content is above 99%, with stable quality, meeting international standards such as ISO, EP, and USP.
Excellent water solubility, high bioactivity, and easy absorption. Widely used in pharmaceuticals, cosmetics, and food additives.
Factory-direct pricing, sufficient stock, and support for both sample orders and bulk orders.
| Item | Spec. | Result |
|---|---|---|
| Description | White to white like crystalline powder | Conforms |
| Identification | Should meet the requirements | Conforms |
| Specific Rotation | +89°~ +93° | +90.1° |
| Loss on drying | ≤0.2% | 0.04% |
| Melting range | 229℃-232℃ | 229.8℃-231.2℃ |
| Ash | ≤0.1% | 0.03% |
| Assay | 98.5% ~ 100.5% | 99.92% |
| Solution color and clarity | Solution clarity and the samples should be light in color standard | Conforms |
| Heavy Metals | ≤10mg/kg | <10mg/kg |
| Lead | ≤2mg/kg | 0.07mg/kg |
| Arsenic | ≤1mg/kg | 0.12mg/kg |
| Single impurities | ≤1.0% | 0.6% |
| Total impurities | ≤2.0% | 0.6% |
| Total number of colonies | ≤1000cfu/g | <1000cfu/g |
| Yeasts and Moulds | ≤100cfu/g | ＜100cfu/g |
| Diarrheogenic Escherichia coli | Not be detected（25g） | Not Detected |
| Salmonella | Not be detected（25g） | Not Detected |
| Conclusion | Conform to USP40 | |
1. Dietary Supplements
D Biotin is used in hair growth, skin care and nail care supplements. Promotes hair follicle health, improves brittle nails and maintains normal skin metabolism.
2. Food Industry
Vitamin B7 is used as food nutrition fortifier in cereals, dairy products, beverages and functional food to supplement Vitamin B7.
3. Pharmaceutical Industry
Applied as pharmaceutical raw material for compound vitamin preparations and metabolic conditioning medicines.
| Weight | Packing Method |
|---|---|
| 1kg | bag/kg, box outside (double plastic bag + Aluminum foil bag inside) |
| 10kgs, 25kg or more | by Drums or carton (2 layers plastic bag inside) |
| Weight | Delivery Method | Delivery Time | Destination |
|---|---|---|---|
| 1kg - 25kgs | EMS, DHL, UPS, Fedex | 3 - 7 days | Door to door |
| 25kgs - 100kgs | DHL, FedEx, by Air | 3 - 7 days | Door to door (to Airport by Air) |
| More than 100kgs | by Air | 3 - 7 days | Door to Airport |
| by Sea | 10 - 35 days | Door to port |
