Kojic Acid

The Potent Tyrosinase Inhibitor and Whitening Agent

Kojic acid is a weakly acidic organic compound made through the fermentation pathway of microorganisms. It can strongly suppress the formation of skin melanin by inhibiting the synthesis of tyrosinase. It is safe, non-toxic, and effective against freckles, age spots, pigmentation, and acne.

INCI Name

Kojic Acid

CAS No.

501-30-4

Source

Made of microorganisms through fermentation pathway

Core Function

Strong melanin suppression, treats freckles/age spots/pigmentation, anti-bacterial, anti-oxidant.

1. Product Overview & Market Relevance

Kojic acid is commonly found in the brewing of soy sauce, bean paste, and alcohol. It has been incorporated into high-end whitening cosmetics such as toners, masks, lotions, and skincare creams. It is completely non-toxic, soluble in water, and effective in small amounts, making it an ideal substance for pharmaceutical preservation as well.

2. Technical Highlights and Critical Parameters

2.1 Mechanism of Action

  • Whitening/Melanin Suppression: Strongly suppresses the formation of skin melanin by inhibiting the synthesis of tyrosinase.
  • Anti-bacterial: Exhibits good inhibitory effects on most bacteria and some yeasts, even at low concentrations.

2.2 Standard Technical Specifications

ParameterSpecification (99% Grade)
Specification99%
FormWhite to beige-brown crystalline Powder
Melting point152 – 155°C
Recommended Dosage0.5 Percent – 2.0 Percent in cosmetics
SolubilityWater, alcohol, acetone ($text{DMSO}$[slightly]), Methanol[slightly, $text{smoiated}$]
Shelf-life24 months
StorageStore in tightly sealed and preferably full containers in cool, dry and ventilated area.

3. Market Positioning and Core Advantages

  • Potency: A concentration of 20g/ml of Kojic acid can inhibit the activity of various tyrosinases (PPO) by 70%80%.
  • Safety Profile: It is safe and non-toxic, without causing post-leukoderma sequelae.
  • Dual Efficacy: Possesses both anti-oxidant and strong anti-bacterial properties.
  • Application Versatility: Soluble in water and effective in small amounts, making it ideal for high-end cosmetic and pharmaceutical preservation.

4. Formulation Guidelines

  • Integration Phase: Since it is soluble in water, it can be easily incorporated into the aqueous phase of formulations.
  • Concentration: Generally recommended addition of 0.5%2.0% in cosmetics.
  • Storage: Must be stored in tightly sealed and preferably full containers in a cool, dry, and ventilated area.

5. Quality Assurance and Regulatory Confidence

Our quality and safety credentials include:

  • COSMOS (Natural and Organic Cosmetic Standard)
  • ISO 9001 Quality Management System
  • ISO 22000 Food Safety Management System
  • HALAL Certification
  • IQNET (The International Certification Network)
  • Technical Dossier (Certificate of Analysis – COA, Technical Data Sheet – TDS, Material Safety Data Sheet – MSDS)

6. Typical Applications

  • Cosmetics: Toners, masks, lotions, skincare creams, targeting freckles, age spots, pigmentation, and acne.
  • Other Industries: Composite food preservatives and ideal substance for pharmaceutical preservation.

7. Scientific Evidence Summary

  • Inhibition Ratio: A concentration of 20g/ml of Kojic acid can inhibit the activity of tyrosinases (PPO) by 70%80%.
  • Anti-bacterial Spectrum: Demonstrates significant inhibition against generally pathogenic bacteria such as Escherichia coli, Staphylococcus aureus, and Streptococcus.
  • Safety and Stability: Research has shown that it is completely non-toxic, soluble in water, and effective in small amounts.

8.Frequently Asked Questions (FAQ)

Q1: How does Kojic Acid suppress skin pigmentation?

A: It strongly suppresses the formation of skin melanin by inhibiting the synthesis of tyrosinase, the key enzyme in the melanin pathway.

Q2: What is the recommended usage concentration for Kojic Acid?

A: The generally recommended addition in cosmetics is 0.5%-2.0%.

Q3: Does Kojic Acid have anti-bacterial properties?

A: Yes. It exhibits good inhibitory effects on most bacteria and some yeasts, including pathogenic strains like E. coli and S. aureus.

 

Source our >99 Percent Purity Kojic Acid for potent, safe, and effective skin whitening and anti-bacterial formulations.

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Shaanxi Huatai Bio-Fine Chemicals Co., Ltd. is a specialized manufacturer of advanced Functional Skincare Ingredients, providing scalable wholesale solutions for global beauty brands. We offer high-purity bulk supplies of Glabridin (brightening), Licochalcone A (anti-acne), Totarol, and Dipotassium Glycyrrhizinate. With tailored concentrations (1%–99%) and comprehensive OEM capabilities, our ISO 9001/22000 and COSMOS certified facilities guarantee premium cosmetic-grade quality for every wholesale order.

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