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Kojic Acid – Tyrosinase-Inhibiting Brightening Agent
A classic brightening agent that inhibits tyrosinase to help fade dark spots, it is part of the brightening trio alongside arbutin and niacinamide.
- Inhibits tyrosinase to help fade dark spots over time
- A classic brightening agent widely used in spot-care formulas
- One of the brightening trio with arbutin and niacinamide
Kojic Acid Cosmetic Grade | Natural Fermented Brightening Raw Material Bulk-Aogebio
Kojic Acid
Kojic Acid Cosmetic Grade Natural Fermented Kojic Acid, Effective Tyrosinase‑Inhibiting Brightening Active For Brightening Serum, Spot‑Fading Cream, Tone‑evening Lotion & Mask Formulas
Product Specification
| Item | Specification |
|---|---|
| Product Name | Kojic Acid |
| INCI Name | Kojic Acid |
| CAS No | 501‑30‑4 |
| Appearance | White to off‑white crystalline powder |
| Source | Carbohydrate fermentation by Aspergillus oryzae |
| Melting Point | 152℃‑155℃ |
| Solubility | Water‑soluble; soluble in ethanol & acetone |
| Recommended Dosage | 0.5%‑1.0% (leave‑on cosmetics); max 1% EU compliant for face/hand leave‑on products |
| MOQ | 1kg |
| Shelf Life | 24 months under sealed cool‑dark storage |
| Grade | Cosmetic Grade, Purity ≥99% |
What Is Kojic Acid?
Kojic Acid is a high‑efficiency skin‑brightening active substance produced via natural microbial fermentation of carbohydrate raw materials by Aspergillus oryzae. It works by chelating copper ions at the active site of tyrosinase, the core enzyme for melanin synthesis, to suppress tyrosinase activity and block melanin production at the source.
Different from arbutin which competitively binds tyrosinase, kojic acid targets copper co‑factor to deliver strong brightening performance. It also delivers mild antioxidant effects to relieve oxidative stress on skin. Widely applied in brightening serums, spot‑correcting creams, facial masks, toners and essence products. Aogebio supplies high‑purity cosmetic‑grade bulk kojic acid powder, providing free samples, full qualification documents and global one‑stop shipping for cosmetic manufacturers.
Core Advantages Of Our Kojic Acid
High‑Purity Fermented Raw Material, Low Impurity
Adopts strict fermentation & purification process, HPLC verified purity ≥99%, low heavy‑metal residues, low impurity content, consistent batch‑to‑batch quality, compliant with global cosmetic raw‑material standards, ideal for high‑end brightening cosmetic development.
Powerful Tyrosinase‑Inhibiting Brightening Mechanism
Effectively chelates copper ions of tyrosinase, inhibits melanin biosynthesis, visibly fades dark spots, post‑acne marks and uneven skin tone with continuous use, delivers targeted brightening effect for pigment‑concerned skin.
Mild Antioxidant Property
Neutralizes partial free radicals, alleviates skin oxidative damage caused by UV and external environment, assists skin to maintain bright and clear complexion beyond pigment inhibition.
Good Water‑Phase Compatibility
Excellent water‑soluble property, easy to dissolve in aqueous phase; compatible with niacinamide, alpha‑arbutin, vitamin‑C series actives to achieve synergistic brightening effect for diversified formula development.
Flexible Supply & Complete Supporting Documents
Support free sample testing, small‑batch trial production and large‑volume bulk order. Each batch is attached with COA, MSDS, TDS technical documents to meet brand‑factory registration and filing requirements.
How Kojic Acid Works On Skin
Kojic acid dissolves into skin surface via water‑phase system. It binds copper ions required for tyrosinase activation, disabling tyrosinase and cutting off melanin generation pathway from the source, so as to reduce hyperpigmentation formation and fade existing dark spots, sun spots and post‑inflammatory pigmentation.
Its mild antioxidant capacity helps reduce free‑radical‑triggered skin dullness. After continuous application, skin tone becomes more even and luminous. Formulators need to pay attention to anti‑oxidant matching and pH control during production to prevent oxidation discoloration and guarantee active efficacy.
Main Functions & Cosmetic Application Fields
Core Efficacy Benefits
- • Inhibit tyrosinase activity, suppress melanin synthesis
- • Fade sun spots, melasma, acne‑post inflammatory dark marks
- • Even overall skin tone, improve sallow and dull complexion
- • Mild antioxidant effect, resist external oxidative stress
- • Targeted improvement for local pigmented spots
- • Synergistic brightening when combined with other brightening ingredients
Suitable Cosmetic Formulas
- • Brightening & spot‑fading facial serums & essences
- • Tone‑evening facial creams & lotions
- • Brightening facial masks & spot‑targeted treatment products
- • Brightening toners & skin‑refining water‑based skincare
- • Brightening body care products for uneven body pigmentation
- • Custom clean‑beauty brightening cosmetic systems
Formulation Guide: Dosage, Solubility & Matching Tips
Recommended dosage: 0.5%‑1.0% of total formula weight for leave‑on products (follow EU regulatory limit ≤1% for face & hand leave‑on cosmetics). For short‑contact mask products, dosage can be adjusted within safe testing range.
Solubility: Water‑soluble active powder, dissolve in water‑phase components. Recommended dissolving temperature ≤40℃ to avoid thermal‑induced oxidation and browning.
Optimal formula pH range: pH 4.0‑5.5 for best activity and stability.
Recommended matching ingredients: Alpha‑arbutin, niacinamide, vitamin‑C derivatives, EDTA‑2Na, sodium metabisulfite, vitamin E; chelating agents and anti‑oxidants greatly improve kojic‑acid anti‑discoloration performance.
Formulation Notes:
- 1. Avoid high‑temperature long‑time heating; dissolve under low‑temperature water‑phase condition.
- 2. Add chelating agent and antioxidant in formula to restrain oxidation browning; adopt opaque & light‑proof packaging for finished goods.
- 3. Avoid direct contact with strong metal ions during production process.
- 4. Sealed, cool‑dark storage for raw‑material warehouse storage; keep away from light and high temperature.
Packaging, MOQ & Global Shipping Details
- Sample package：10g, 50g, 100g free testing samples (sealed aluminum foil bag)
- Small bulk：1kg / 5kg
- Large bulk：25kg
- MOQ：1kg
- Shipping：Global door‑to‑door shipping, support DHL, FedEx, air and sea freight
- Lead time：3‑7 working days for samples; 7‑15 working days for bulk orders
- Custom service：Custom packaging and private label for large orders
Storage & Shelf Life Standard
Storage Conditions:
Store in cool, dry, dark low‑temperature environment; keep tightly sealed and light‑proof; avoid high‑temperature, direct sunlight and metal‑ion contact, prevent raw‑material oxidation and discoloration.
Standard Shelf Life:
24 months under standard sealed cool‑dark storage conditions.
Certifications & Compliance Documents (COA, MSDS, TDS)
Our cosmetic‑grade Kojic Acid meets global cosmetic raw‑material safety standards:
- EU CosIng database registered ingredient
- ISO22716 & GMP cosmetic production system certification
- Each batch equipped with complete COA, MSDS, TDS documents
- Support third‑party professional testing and verification
We provide stable high‑quality cosmetic active raw materials for global daily chemical and cosmetic manufacturers.
Frequently Asked Questions
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Q1: What is the difference between Kojic Acid and Alpha‑Arbutin?
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Q2: What is the optimal pH value for kojic‑acid formulation?
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Q3: Why does kojic‑acid‑containing cosmetic turn brown?
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Q4: What is your minimum order quantity and sample policy?
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Global Business Contact:
WhatsApp: 0086-18091843361
Official Website: www.aogebio.com
Factory Address: Xi'an, Shaanxi, China