ALPHA LIPOIC ACID

ALPHA LIPOIC ACID ver.2.0 HS/SMPRODUCT STANDARDPRODUCT NAMEALPHA LIPOIC ACID-WSPC8(COSMETIC)This product guarantees a minimum of 8.0% α-lipoic acid (thioctic acid, 1,2-dithiolane- 6-pentanoicacid). This product is water-soluble.1. Appearance Slight yellowish or yellowish crystalline powder.It has no smell or slightly unique smell.2. Certification Test The maximum absorbance wavelength: 331335 nm.The minimum absorbance wave length: 278283 nm.3. Content of α-Lipoic Acid Min. 8.0% (HPLC)4. Loss on Drying Max. 9.0 % (1g, 40, reduced pressure, P O , 4 hours)6. Ignition Residue Max. 0.10 %7. Purity Test(1)Heavy Metals Max. 10 ppm (The Second Method)(2)Arsenic Max. 1 ppm (The Third Method, Apparatus B)8. Standard Plate Counts Max. 1 10 2 cfu/g (Analysis for Hygienic Chemists)9. Moulds and Yeasts Negative (Analysis for Hygienic Chemists)10. Coliforms Negative (Analysis for Hygienic Chemists)11. Residual Solvents(1)Ethanol Max. 0.1 % (GC)(2)Other SolventsAcetone Not detected (Max. 1 ppm) (GC/MS)Cyclohexane Not detected (Max. 1 ppm) (GC/MS)Dichloromethane Not detected (Max. 1 ppm) (GC/MS)Ethyl acetate Not detected (Max. 1 ppm) (GC/MS)Hexane Not detected (Max. 1 ppm) (GC/MS)MTBE Not detected (Max. 1 ppm) (GC/MS)Toluene Not detected (Max. 1 ppm) (GC/MS)12. Composition Ingredient ContentThioctic Acid 8%Cyclodextrin 92%100%Ref: The Japanese Standards of Cosmetic Ingredients.29