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Kojic acid CAS 501-30-4

Product name: Kojic acid

CAS NO: 501-30-4

Molecular Formula: C6H6O4

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Place of Origin: China
Brand Name: FIRSKY
Model Number: 1KG
Certification: SGS,ISO 9001
Purity: 99%
Packaging Details: Custom aluminum packages,paper boxes,wooden cartons
Delivery Time: Tracks available within 3-5 working days after payment received
Payment Terms: Escrow,Bank transfer,Western Union,Money Gram,Wise,Crypto currencies
Supply Ability: 2000T/Mouth


Kojic acid is a natural compound derived from certain fungi, particularly Aspergillus oryzae, which is commonly used in the production of fermented foods like soy sauce and rice wine. It is also found in some plant species. Kojic acid is widely used in the skincare industry for its skin-lightening and antioxidant properties.


1. Skin Lightening: Kojic acid is widely used as a skin lightening agent due to its ability to inhibit the production of melanin, the pigment responsible for skin color. It is used in various skincare products, such as creams, lotions, serums, and soaps, to reduce the appearance of hyperpigmentation and even out skin tone.

2. Treatment of Hyperpigmentation: Kojic acid is effective in treating different forms of hyperpigmentation, including age spots, sunspots, freckles, melasma, and post-inflammatory hyperpigmentation caused by acne or other skin conditions. It works by suppressing the activity of tyrosinase, an enzyme involved in melanin production.

3. Anti-Aging Effects: Kojic acid possesses antioxidant properties, which can help neutralize free radicals and protect the skin from oxidative damage. It may help reduce the signs of aging, such as fine lines, wrinkles, and age spots, by preventing collagen degradation and promoting a more youthful appearance.

4. Acne Treatment: Kojic acid has antibacterial properties that make it useful in the treatment of acne. It can help inhibit the growth of acne-causing bacteria and reduce inflammation associated with breakouts. Additionally, kojic acid's ability to fade post-inflammatory hyperpigmentation can contribute to improving the appearance of acne scars.

5. Skincare Products Preservation: Kojic acid also acts as a preservative in cosmetic and skincare products. It has antimicrobial properties that help inhibit the growth of bacteria, fungi, and other microorganisms, extending the shelf life of formulations.

It's important to note that kojic acid may cause skin irritation or sensitivity in some individuals, particularly in high concentrations or with prolonged use. It is advisable to conduct a patch test before using products containing kojic acid and to follow the instructions provided by manufacturers or healthcare professionals. Additionally, individuals with sensitive skin or certain skin conditions should consult a dermatologist before incorporating kojic acid into their skincare routine.


Product Name:

Kojic acid


2-(hydroxymethyl)-5-hydroxy-4H-pyran-4-one;5-hydroxy-2-(hydroxymethyl)pyran-4-one;UNII-6K23F1TT52;5-Hydroxy-2-(hydroxymethyl)-4-pyrone;5-Hydroxy-2-hydroxymethyl-4H-4-pyranone;2-Hydroxymethyl-5-hydroxy-γ-pyrone;MFCD00006580;5-Hydroxy-2-(hydroxymethyl)-4H-pyran-4-one;4H-PYRAN-4-ONE,5-HYDROXY-2-(HYDROXYMETHYL);5-hydroxy-2-(hydroxmetyl)-4H-pyran-4-one;3-hydroxy-6-hydroxymethyl-4H-pyran-4-one;EINECS 207-922-4





Molecular Formula:


Molecular Weight:


Melting Point:

152-155 °C (lit.)

Boiling Point:

179.65°C (rough estimate)


1.1712 (rough estimate)


white to beige powder


Store in airtight packaging to avoid high temperature and high humidity.


Used and stored as specified, will not decompose, avoid contact with oxides


1.Firsky (Wuhan) keeps working to provide customers with high-quality products steadily. We have established a sound internal quality management system and are constantly striving to improve quality, reduce deviation and waste.

2.If you have any questions, please feel free to ask questions, we will reply to your questions within 48 hours.

3.If you have any questions after receiving the goods, please feel free to contact us. If the loss is caused by us, we guarantee 100% compensation.


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