Kojic Acid
CAS Number: 501-30-4
Kojic Acid is a naturally derived organic acid produced by fermentation of fungi such as Aspergillus oryzae. It is a highly effective skin lightening and anti-hyperpigmentation agent that works by chelating copper ions and inhibiting tyrosinase, the enzyme responsible for melanin synthesis. Kojic Acid is widely used in whitening serums, brightening creams, and spot-reducing formulations in Asian beauty markets.
Technical Specifications
| appearance | White to pale yellow crystalline powder |
| purity (%) | ≥99 |
| pH (1% solution) | 3.0–4.5 |
| melting point (°C) | 151–154 |
Applications
- Skin whitening serums
- Brightening and spot-reducing creams
- Hand and neck whitening lotions
- Combined whitening treatments with arbutin
- Facial brightening masks
Key Features
- Effective tyrosinase inhibitor for skin lightening
- Natural fermentation-derived origin
- Synergistic with arbutin and vitamin C
- Used globally in whitening cosmetics