White needle crystal, soluble in organic solvents such as methanol, ethanol, DMSO, etc., derived from bearberry leaves, rock cabbage.
|Test items||Standard regulation||Test result|
|Identification||Complies with the reference||Conform|
|-Infrared absoption||spectrum of alpha-Arbutin||Conform|
|Clarity of water solution||Transparency, colorless, non suspended matters||Conform|
|Specific rotation||+174°～ +186°||+182.15°|
|Loss on drying||≤1.0%||0.03%|
|Residue on ignition||≤0.5%||Conform|
|Total bacterial count||≤1000cfu/g||Conform|
|Yeast & Mold||≤100cfu/g||Conform|
|Conclusion||According to the enterprise standard test, the results meet the requirements|
Used as a whitening agent in cosmetics, it has been produced and deposited by melanin to remove freckles.
Α-arbutin inhibits tyrosinase activity at a lower concentration, and its inhibitory effect on tyrosinase is superior to arbutin
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