- CAS No: 501-30-4
- MW: 142.11 
- MF: C6H6O4
- EINECS No.: 207-922-4

Kojic Acid is a natural compound derived from certain fungi, such as Aspergillus oryzae, and is used in skincare and cosmetic products for its skin-lightening and antioxidant properties. Here are its primary function and applications:

1. Skin Lightening: Kojic Acid is a potent inhibitor of tyrosinase, the enzyme involved in the production of melanin, the pigment responsible for the color of our skin. By inhibiting tyrosinase, Kojic Acid reduces the production of melanin, which can help lighten and fade dark spots, hyperpigmentation, and other forms of skin discoloration.

2. Antioxidant: Kojic Acid also exhibits antioxidant properties, helping to neutralize free radicals and protect the skin from oxidative stress, which can contribute to premature aging and skin damage.

Kojic Acid is found in various skincare products that aim to address hyperpigmentation and achieve a more even skin tone. Some common applications include:

1. Skin Brightening Creams and Serums: Kojic Acid is often used in skin brightening products, such as creams, lotions, and serums, to reduce the appearance of dark spots and promote a more radiant complexion.

2. Spot Treatments: It is also included in spot treatments formulated to target specific areas of hyperpigmentation or dark spots.

3. Anti-Aging Products: Kojic Acid's antioxidant properties may be utilized in anti-aging skincare products to protect the skin from environmental damage and contribute to a youthful appearance.

4. Soap and Cleansers: Kojic Acid is sometimes used in soap formulations for its skin-lightening effects.