Alpha-arbutin

Characteristics:

α-arbutin is similar to β-arbutin, which can inhibit the production and deposition of melanin and remove stains and freckles. The results show that α-arbutin can inhibit the activity of tyrosinase at relatively low concentration, and its inhibitory effect on tyrosinase is better than β-arbutin

 

Specification

Items	Specifications	Results
Appearance	White crystalline powder	White crystalline
Assay	99.0%Min	99.8%
Melting point	203~206±l°C	203.5-205.5
Clarity of water solution	Transparency, colorless, none suspended matters	pass
pH value of 1% aqueous	5.0—7.0	6.0
solution
Specific optical ratation	[a ] D20=+l76-184°	+179.9°
Arsenic	<2 ppm	pass
Hydroquinone	<10 ppm	pass
Heavy metal	<10 ppm	pass
Loss on drying	<0.5%	0.02%
Ignition residue	<0.5%	0.05%
Pathogen	Bacteria： <300cfu/g	<20
	Fungus： <100cfu/g	<20
Conclusion: Complies with the standard

 

Applicaiton: Alpha-arbutin can be used as a whitening agent in cosmetics