Xi'an Prius manufactures Alpha Arbutin on a large scale. it is White needle-like crystals, soluble in methanol, ethanol, DMSO and other organic solvents, derived from bearberry leaves, cabbage.
Cas:84380-01-8. The whitening mechanism of α-arbutin directly inhibits tyrosinase activity, thereby reducing melanin production, rather than by inhibiting cell growth or tyrosinase gene expression to reduce melanin production.
Quality standard | Inspection Data | Result | |
Assay | 99.5% Min | 99.99% | Conformed |
Hydroquinone | Negative | Negative | Conformed |
Description | White crystalline powder | White crystalline powder | Conformed |
Melting point | 203-206±1oC | 203.2-205.8 oC | Conformed |
Specific rotation | (a)20D=+174.0 º ~+186.0 º | +180.0º | Conformed |
Solubility | Soluble in water slightly soluble in ethanol | Conformed | Conformed |
Clarity | Solution should be clarify, none suspended matters | Conformed | Conformed |
pH ( 1% aqueous) | 5.0～7.0 | 5.4 | Conformed |
Loss on drying | ≤0.5% | 0.01% | Conformed |
Residue on Ignition | ≤0.5% | 0.03% | Conformed |
Heavy metal | ≤10 ppm | <10 ppm | Conformed |
Lead | ≤10 ppm | <1.5 ppm | Conformed |
Arsenic | ≤2 ppm | 0.048ppm | Conformed |
Mercury | ≤1 ppm | 0.007ppm | Conformed |
Total plate count | ≤100cfu/g | 100cfu/g | Conformed |
Molds and Yeast | ≤50cfu/g | <10cfu/g | Conformed |
E.Coli | Negative | Negative | Conformed |
Staphylococcus aureus | Negative | Negative | Conformed |
Salmonella | Negative | Negative | Conformed |
P.aeruginosa | Negative | Negative | Conformed |
Conclusion | According to in house standard (H-TSD-QC(CP-A)-001-01), result:PASS |
α-Arbutin has a better therapeutic effect on scars caused by ultraviolet burns, and has better anti-inflammatory, repairing and whitening effects. It can inhibit the production and deposition of melanin, and remove pigmentation and freckles.
Alpha-arbutin is a chemical substance, similar to arbutin, that inhibits the production and deposition of melanin and removes pigmentation and freckles. Studies have shown that -arbutin can inhibit the activity of tyrosinase at relatively low concentrations, and its inhibitory effect on tyrosinase is better than that of arbutin. Alpha-arbutin can be used in cosmetics as a whitening agent.
Melatonin can be widely used in health foods, medicines, various cosmetics, and nourishing care products.
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