Kojic Acid Powder Bulk – Premium Skin Brightening Ingredient for Cosmetic Manufacturing

Shaanxi Nuoyuan Biotech Co., Ltd. specializes in manufacturing high-purity Kojic Acid Powder Bulk with a verified concentration of 99% via HPLC. We create our product by controlled Aspergillus fermentation in our 30,000㎡ ISO 9001 facility and sell to industrial cosmetic manufacturers, professional soap makers and dermatological compounders across the world.

We have 5 sophisticated HPLC testing systems with yearly processing capacity of 20,000 tonnes, and ensure batch-to-batch consistency, low heavy metal concentration (Pb < 10ppm, As < 2ppm), and quick dissolving rates. We are your reliable choice for the formulation of hyperpigmentation therapy . Our product has consistent supply chains and whitening kinetics in mass manufacturing .

What Is Kojic Acid Powder Bulk?

Product is commercial grade of crystalline 5-hydroxy-2-(hydroxymethyl)-4H-pyran-4-one. It is made via microbial fermentation utilising selected strains of Aspergillus oryzae .

This element tackles three major issues you have:

First, unstable availability of high-demand brightening chemicals disturbs your manufacturing plans. Secondly, sourcing in small quantities raises your unit costs and cuts your profit margins. Third, the absence of standardised, high-purity raw ingredients makes it very hard to get consistent formulation in big quantities.

It inhibits melanin formation at the enzyme level, being a strong tyrosinase inhibitor. Therefore, it is the gold standard for professional bleaching treatments for melasma, age spots and post-inflammatory hyperpigmentation.

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Certificate of Analysis (COA)

Product Name	Kojic acid
CAS No.：	501-30-4	Ref. Standard:	In-house Standard
Batch Number:	/	Batch Quantity:	2000kg
Storage Condition:	Store in a sealed container at a controlled room temperature.

Item	Specification	Results
Assay	≥99.0%	99.72%
Appearance	White or off-white crystals	Conforms
Melting Range	152-156℃	152.2-153.5℃
Water content	≤0.5%	0.11%
Residue on ignition	≤0.1%	0.02%
Chloride（Cl）	≤50ppm	25ppm
Iron(Fe)	≤10.0ppm	Conforms
Heavy Metals	≤3.0ppm	Conforms
Arsenic(As)	≤1.0ppm	Conforms
Total Plate Count	≤1000cfu/g	Conforms
Yeast & Mold	≤100cfu/g	Conforms
E.Coli	Negative	Negative
Salmonella	Negative	Negative
Staphylococcus aureus	Negative	Negative
Conclusion	Conform to In-house Standard.

Primary Industrial Applications

Your Kojic Acid Powder Bulk order serves three high-performance scenarios effectively.

Industrial Cosmetic Manufacturing uses 1-3% concentrations in brightening serums and creams. You formulate it as the primary active for treating stubborn hyperpigmentation and melasma in professional skincare lines.

Professional Soap Production needs in large quantities for cold-process or melt-and-pour bases. The B2C ‘Kojic Soap’ market, requiring heat stability and precise pH control to ensure potency during saponification.

Dermatological Compounding may enable chemists to manufacture topical formulations for the treatment of post-inflammatory hyperpigmentation. You'll need to add chelating agents like EDTA (0.1%) and antioxidants to avoid oxidative browning when used with AHAs or botanical extracts.

On more complicated formulations with metal ions or light exposure hazards, effective stabilisation means your finished product will retain its white look and total effectiveness during shelf life.

Technical Characteristics and Quality Standards

Your powder is a white to off-white needle-like crystal and melts at 152-155 °C. It is highly soluble in water, ethanol and ethyl acetate.

Chemically it is a powerful chelator of copper ions . This binding leads to inactivation of tyrosinase at the active-site with predictable whitening kinetics that are better than synthetic ones.

Our ≥99.0% purity (HPLC) minimises contaminants that might contribute to skin irritation. Heavy metal content is significantly below regulatory levels due to rigorous USP and FCC compliance.

The moisture level is kept around 0.5% to avoid clumping in storage. Particle size distribution of 80-100 mesh ensures fast and uniform dissolving in aqueous emulsion phases for big batch production.

This technical consistency prevents batch-to-batch variances that impact your formulation stability and regulatory compliance.

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Quality Control Procedures

Our inspection protocol focuses on five critical parameters you need for professional procurement.

Assay Purity via HPLC confirms the 99% threshold that guarantees efficacy in your final formulations. Color Value/Absorbance Testing detects early-stage oxidation products invisible to visual inspection.

Loss on Drying Analysis maintains moisture below 0.5%, preventing powder clumping in your storage facility. Heavy Metal Analysis through ICP testing verifies compliance with EU and USA safety standards for Arsenic, Mercury, and Lead.

Particle Size Distribution ensures consistent 80-100 mesh for predictable dissolution rates in your high-volume emulsion systems.

Each production batch undergoes verification at multiple quality checkpoints before receiving final approval from our experienced QC team supported by 5 HPLC testing systems.

International Certifications

Our manufacturing facility maintains compliance with global quality and safety standards:

ISO 9001 Quality Management System Certificate – Ensures consistent production processes and quality control
HALAL Certification – Meets requirements for Middle Eastern and Southeast Asian markets
STAR-K Kosher Certification – Approved for Jewish dietary law compliance
FDA Registration – Facility registered for export to United States markets

Third-party audit reports and testing services are available upon request to support your regulatory documentation needs.

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Packaging Options for Different Order Volumes

Package Size	Container Type	Best For
100g	Food-grade plastic + aluminium foil bag	Laboratory testing
1kg	Food-grade plastic + aluminium foil bag	Trial formulations
5kg	Food-grade plastic + aluminium foil bag	Medium production runs
10kg	Food-grade plastic + aluminium foil bag	Bulk trial orders
25kg	Fiber drum (standard commercial)	Full-scale manufacturing

All packaging meets international shipping standards and includes moisture-barrier protection to maintain powder stability during transit.

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Transportation Methods

Express Shipping (DHL, FedEx, UPS, EMS, USPS) provides 5-7 day delivery for sample orders and urgent small quantities.

Air Cargo offers cost-effective solutions for commercial shipments requiring faster delivery than ocean freight.

Sea Cargo accommodates large commercial volumes with the lowest per-unit transportation costs for regular production supply.

We maintain sufficient inventory for immediate dispatch. All bundling complies with UN packaging standards for safe international chemical transport.

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Our Teams

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Exhibitions

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FAQ

Q：Why does my formulation turn brown over time?

A：Oxidative degradation occurs when exposed to trace metal ions. Add 0.1% EDTA and maintain pH between 3.0-5.0 for maximum stability.

Q：What storage conditions do you recommend?

A：Store in a cool, dry, dark environment using light-resistant containers, as UV exposure accelerates potency loss.

Q：How does Kojic Acid differ from Kojic Acid Dipalmitate?

A：Standard Kojic Acid is water-soluble and more potent but less stable. Dipalmitate is oil-soluble with superior light and heat resistance.

Q：How do I verify shipment purity?

A：Every batch includes a COA with HPLC chromatogram and melting point test results from our certified laboratory.

Q：Can I use it in high-pH formulations?

A：No, it becomes unstable above pH 7. For soap applications, carefully monitor pH to prevent color changes and activity loss.

Q：What's your minimum order quantity?

A：We accept sample orders from 100g and commercial orders from 25kg, with OEM/ODM customization available.

Contact Us

Ready to secure your supply of high-purity Kojic Acid Powder Bulk? Contact our technical team at sales@nuoyuanbio.com for quotes, COA samples, and formulation support today.