Description
Kojic Acid (CAS 501-30-4) is a classic brightening active derived from fungal fermentation. It inhibits tyrosinase — the key enzyme in melanin production — making it a proven ingredient for evening skin tone and fading pigmentation.
Physical & Chemical Properties
- INCI: Kojic Acid
- CAS number: 501-30-4
- Appearance: white to pale yellow crystalline powder
- Solubility: soluble in water and ethanol
- Molecular formula: C6H6O4
- Ionic type: non-ionic organic acid
- Source: fungal fermentation (Aspergillus)
Key Benefits for Formulation
- Tyrosinase inhibition: blocks the key step in melanin production
- Brightening: fades dark spots and evens tone
- Proven efficacy: decades of use in cosmetic brightening
- Antioxidant support: mild free-radical scavenging
- Water soluble: easy formulation
Main Applications
- Brightening serums & essences: daily tone care
- Spot & pigment treatments: targeted fading
- Creams & lotions: radiance and even tone
- Soap & cleansers: rinse-off brightening
- Professional skincare: pigment-focused programs
Why Choose Our Bulk Kojic Acid?
- GMP manufacturing: full quality control from raw material to finished product
- Complete documentation: COA, SDS and heavy metal test reports available on request
- Flexible supply: MOQ and lead time on inquiry, from R&D samples to mass production
- Export experience: reliable shipping to EU, North America, Australia and Middle East
Recommended Usage
Typical use level 0.5%–2.0%. Water-soluble — dissolve in the water phase; note it can discolor in iron-containing systems (use chelating agents).
FAQ About Wholesale Kojic Acid
What is the CAS number of Kojic Acid?
CAS 501-30-4.
What is the INCI name?
Kojic Acid.
What is Kojic Acid used for?
Brightening — inhibits tyrosinase to fade dark spots and even skin tone.
Is it water soluble?
Yes — it is soluble in water and ethanol.
What is the recommended use level?
0.5%–2.0% depending on product type.
Does it discolor in formulas?
It can chelate with iron and discolor — use chelating agents and test stability.
Is it suitable for sensitive skin?
It is generally well tolerated, but patch-test at higher levels.
Start Your Kojic Acid Bulk Order
Contact our sales team today for spec sheets, samples and bulk pricing — our technical team is ready to support your formulation development.
