Bearberry Leaf Extract
Botanical Source: Arctostaphylos uva ursi
Specifications: Arbutin 99% By HPLC
Description:
Arbutin is the active substance originated from natural plant which can whiten and lighten skin. α- Arbutin can infiltrate into the skin quickly without affecting the concentration of cell multiplication and effectively prevent activity of tyrosinase in the skin and the forming of melanin. By combined arbutin with tyrosinase, decomposition and drainage of melanin are accelerated, splash and fleck can be got ride of and no side effects are caused. α- Arbutin is one of the safest and most efficient whitening materials that are popular at present, and is also the most competitive whitening activity in the 21st century.
Main Function:
Good for skin whitening;
Inhibiting melanin formation;
Reducing pigmentation in the skin;
Treating dark patches from sun exposure, freckles, liver spots and age spots;
An non-phenol alternative to hydroquinone for dermatologic and cosmetic use;
Using as a stabilizer for color photographs, diuretics, anti-infectives for the urinary system;
| Product Name |
Bearberry Leaf Extract |
Batch Number |
BLE-170412 |
| Botanical Source |
Arctostaphylos uva-ursi |
Batch Quantity |
50kgs |
| Plant Part Used |
Dried leaf,100% Natural |
Country of Origin |
China |
| Type of Products |
Standard Extract |
Active Ingredient Markers |
Alpha-arbutin |
| |
| Identification |
Positive |
Conforms |
TLC |
| Appearance |
Fine White powder or Crystalline Powder |
Conforms |
Visual test |
| Odor & Taste |
Characteristic |
Conforms |
Organoleptic test |
| Bulk Density |
35-55g/100ml |
Conforms |
ASTM D1895B |
| Solubility |
Soluble in water and alcohol |
Conforms |
Visual |
| |
| Assay |
NLT Alpha-arbutin 99% |
99.25% |
HPLC |
| Loss on Drying |
NMT 0.5% |
0.12% |
5g /105ºC /2hrs |
| Sulfated ash |
NMT 0.5% |
0.09% |
2g /525ºC /3hrs |
| Melting Point |
202-206 (±0.5)ºC |
202.6~203.2ºC |
CP2005 |
| Specific Optical Rotation |
[a]D20= + 174.0° ~ +186.0° |
177.98° |
CP2005 |
| Hydroquinone |
NMT 10ppm |
2ppm |
Gas Chromatography |
| PH Value in 1% water solution |
5.0-7.0 |
6.42 |
CP2005 |
| Clarity of water solution |
Transparent, colorless, none suspended matter |
Conforms |
CP2005 |
| Extract Solvents |
Water and Ethanol |
Conforms |
/ |
| |
| Heavy Metals |
NMT 10ppm |
<3ppm |
Atomic Absorption |
| Arsenic (As) |
NMT 1ppm |
<1ppm |
Atomic Absorption |
| Lead (Pb) |
NMT 2ppm |
Conforms |
Atomic Absorption |
| Cadmium (Cd) |
NMT 0.5ppm |
Conforms |
Atomic Absorption |
| Mercury (Hg) |
NMT 0.2ppm |
Conforms |
Atomic Absorption |
| |
| Microbiological Data |
Total Plate Count < 1000 cfu/g |
< 1000 cfu/g |
GB 4789.2 |
| Total Yeast & Mold < 100 cfu/g |
< 100 cfu/g |
GB 4789.15 |
| E. Coli to be negative |
Negative |
GB 4789.3 |
| Staphylococcus to be negative |
Negative |
GB 4789.10 |
| Salmonella to be absent |
Absent |
GB 4789.4 |
| |
| Packing and Storage |
Packed in bag. Net weight: 1kg/bag. |
| Keep tightly sealed, store away from moisture, strong heat and sunlight. |
| Shelf Life |
2 years if sealed and stored in the recommended conditions. |
Characteristic:
- We can also customize orders as customer's requirements and specifications.
- KINGHERBS' is specialized in manufacturing and exporting different kinds of food industry related goods, such as Artemisinin, Myricetin, Olive Leaf Extract Oleuropein 10%~80%, Hydroxytyrosol 5%-50%;
Olive Fruit Extract Maslinic Acid 5%~50% ; Dihydromyricetin, Sea Buckthorn Oil, Zinger Zerumbet Extract
Fenugreek Seed Extract Furostanol Saponins 50%, Apple Root extract, Rosemary Extract Rosmarinic Acid 2%~98%, Carnosic Acid 5%~80% etc
- With the effective exporting system and prompt reaction, we ensure that we can transfer the shipping documents and deliver our cargoes on time.
Audited Supplier 
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