Kojic Acid in Cosmetics

Name: Kojic Acid in Cosmetics
Rating: 5.0 (28 reviews)

Kojic Acid VS Kojic Acid Dipalmitate

Item	Kojic Acid Dipalmitate	Kojic Acid
Molecular Formula	618g/mol	142g/mol
Physical and chemical properties	White crystalline powder,melting point 92-96℃	White to light yellow crystalline powder,melting point 150-154℃
Solubility	Insoluble in water,soluble in Oil and propylene glycol	Easily soluble in water,Ethanol and ethyl acetate
PH Stability	Stable when PH 3-10	Not stable when PH>7
Color stability	Does not chelate with metal ions, color is stable and does not change color	Easily chelate and discolor with metal ions, turn yellow or brown
Other Stability	Good light stability, not easily oxidized	Light, heat, and metal ions have poor stability and are easily oxidized
Compounding performance	Compatible with most makeup products	Incompatible with some sunscreens, preservatives

Items	Specification	Result
Assay	≥98%	98.50%
Appearance	White to Yellowish White Powder	Yellowish White Powder
Brightness	≥68%	75%
Chroma	≤BY4	Complies
Moisture	≤2.0%	0.48%
Loss on drying	≤0.1%	0.054%
Heavy Metal	≤4mg/kg	0.10mg/kg
Microbiology
Total Bacterial Count	≤1000cfu/g	<40cfu/g
Heavy Metal
As	≤1.0mg/kg	0.10mg/kg
Pb	≤3.0mg/kg	0.01mg/kg
Cd	≤1.0mg/kg	0.01mg/kg
Hg	0.01mg/kg	0.001mg/kg

Items	Specification	Result
Assay	≥98%	98.50%
Appearance	White to Yellowish White Powder	Yellowish White Powder
Brightness	≥68%	75%
Chroma	≤BY4	Complies
Moisture	≤2.0%	0.48%
Loss on drying	≤0.1%	0.054%
Heavy Metal	≤4mg/kg	0.10mg/kg
Microbiology
Total Bacterial Count	≤1000cfu/g	<40cfu/g
Heavy Metal
As	≤1.0mg/kg	0.10mg/kg
Pb	≤3.0mg/kg	0.01mg/kg
Cd	≤1.0mg/kg	0.01mg/kg
Hg	0.01mg/kg	0.001mg/kg