| Item | Specifications |
| Appearance | Colorless Transparent Liquid |
| Color (APHA) | 100 max |
| Assay | 98~102% |
| Refractive index (25โ) | 1.459~1.465 |
| Specific gravity | 0.930~0.943 |
| Heavy metals | NMT 10 ppm |
| Arsenic | NMT 2 ppm |
| Microbial limited tests | Bacteria <500 cfu/g |
| Mildew and microzyme <100 cfu/g | |
| No escherichia coli should be found |
Accurately inhibit the activity of tyrosinase, block the generation of melanin from the source, effectively improve the dull skin color, anti tanning after sun exposure, acne marks and spots after inflammation. Long term use can achieve even and bright skin color, which has been listed as the legal whitening active ingredient in Japan, South Korea and Taiwan, China.
Efficiently removes free radicals, prevents skin lipid peroxidation, reduces UV damage to cellular DNA, and provides photoprotection. Simultaneously promoting collagen synthesis in the dermis, inhibiting matrix metalloproteinase activity, improving fine and dry lines, enhancing skin elasticity and firmness, and resisting photoaging.
Extremely low irritation, with a risk factor of only 1, no need to establish tolerance. Can soothe the skin, maintain the integrity of the skin barrier, adapt to daily care of sensitive skin, and also have the effect of softening the skin, enhancing the skin feel of skincare products.