China is an important sourcing base for azelaic acid powder because it combines chemical-manufacturing infrastructure, cosmetic-ingredient innovation, export experience, and formulation support. For buyers, however, the most suitable supplier is not necessarily the factory offering the lowest quotation—it is the one that can consistently deliver the agreed specification, complete documentation, traceable batches, and realistic lead times.

Demand is supported by the growth of acne-care, uneven-skin-tone, and sensitive-skin product categories. One recent market estimate valued the global azelaic acid market at USD 262.2 million in 2025 and forecasts USD 542.0 million by 2035, reflecting a projected 7.5% CAGR. China's wider beauty export ecosystem is also expanding: Chinese cosmetics exports reached RMB 36.91 billion in 2024, up 14.11% year on year, according to customs data cited by a local government source.

This article is designed for brand owners, distributors, contract manufacturers, formulators, and procurement teams seeking an azelaic acid powder partner in China.

How We Evaluated Suppliers

The companies below were selected based on publicly available product information, manufacturing relevance, market visibility, documentation capability, and suitability for international B2B procurement. Inclusion is not a guarantee of product quality or regulatory acceptance; buyers should complete their own supplier qualification and laboratory validation.

Key evaluation factors included:

- Azelaic acid relevance: Evidence that the company supplies azelaic acid or operates in related pharmaceutical, cosmetic-ingredient, or specialty-chemical categories.

- Quality-system visibility: Availability of GMP, ISO, audit-report, testing, or batch-documentation information.

- Manufacturing and R&D capability: Ability to support process consistency, specification control, particle-size discussion, and application guidance.

- Export readiness: Experience with international documentation, packaging, shipping coordination, and buyer communication.

- Flexibility for emerging brands: Ability to discuss trial orders, sample evaluation, customized specifications, or finished-product development.

- Supply continuity: Realistic production planning, raw-material sourcing, batch traceability, and lead-time communication.

A supplier should be evaluated in two separate ways: first as a raw-material source, then as a formulation-development or OEM/ODM partner. A company can be strong in one role without being ideal for the other.

Technical Notes for Buyers

Azelaic acid is a saturated dicarboxylic acid with the molecular formula \(C_9H_{16}O_4\) and CAS No. 123-99-9. It is commonly used in topical skincare concepts focused on blemish-prone skin, visible redness, uneven tone, and post-blemish appearance.

For cosmetic purchasing, do not rely on a generic label such as "99% azelaic acid" alone. Request a complete technical package covering:

- Assay method and target specification.

- Related substances or impurity profile.

- Water content or loss on drying.

- Residual solvent information, where applicable.

- Particle-size distribution and sieve specification.

- Heavy-metal test method and reporting limit.

- Microbiological limits where the intended use requires them.

- Appearance, odor, bulk density, and flowability.

- Recommended storage conditions and retest date.

- Safety Data Sheet, Certificate of Analysis, Technical Data Sheet, and allergen or origin declarations where needed.

For personal-care applications, azelaic acid's limited water solubility can create formulation challenges. Particle size, dispersion method, pH window, sensory impact, and compatibility with solvents, emulsifiers, and other active ingredients should be assessed during lab development—not after the first commercial order.

A critical clarification: CE and RoHS are generally not the primary conformity frameworks for cosmetic raw materials. For this category, buyers should prioritize relevant quality systems, ingredient-safety documentation, chemical compliance obligations, and destination-market requirements. For pharmaceutical-use material, applicable drug GMP expectations and regulatory filing support become more important.

Top 10 Manufacturers and Suppliers

Rank	Company	Location	Primary Positioning	MOQ / Capacity Approach	Documentation Focus
1	ZHENYIBIO TECHNOLOGY INC	Xi'an, Shaanxi	Cosmetic active ingredients and customized solutions	Suitable for sample-to-scale discussions; confirm per specification	GMP-standard factory claim, product testing package, custom project support
2	Nantong Jinghua Pharmaceutical Co., Ltd.	Nantong, Jiangsu	Pharmaceutical and chemical raw materials	Better suited to qualified bulk inquiries	API-oriented product and audit documentation
3	Jiangsu Senxuan Pharmaceutical Co., Ltd.	Jiangsu	Pharmaceutical chemical production	Quote-based commercial volumes	Product-specific specification and pharmaceutical supply-chain review
4	TNJ Chemical	Hefei, Anhui	Export-oriented chemical supply	Flexible package and inquiry-based MOQ	COA, SDS, export handling
5	Suzhou Easy Chemical Co., Ltd.	Kunshan, Jiangsu	Cosmetic and chemical ingredient supply	Suitable for formulation and smaller commercial discussions	GMP-compliance claim; verify certificate scope
6	Haihang Industry Co., Ltd.	Jinan, Shandong	Broad chemical and cosmetic-material portfolio	Broad catalog and export-order model	Product documentation to be verified by batch
7	Xi'an Tian Guangyuan Biotech Co., Ltd.	Xi'an, Shaanxi	Botanical and cosmetic ingredient distribution	Inquiry-based for samples and bulk	ISO/SGS claims should be checked directly
8	Xi'an Sonwu Biotech Co., Ltd.	Xi'an, Shaanxi	Cosmetic and botanical active ingredients	Often appropriate for small to mid-sized brands	COA, SDS, and specification confirmation
9	Unilong Industry Co., Ltd.	China	Chemical and cosmetic ingredient supply	Commercial supply and sourcing support	Standard product dossier; verify manufacturing role
10	Shandong Octagon Chemicals Limited	Shandong	Specialty chemical sourcing and export	Bulk inquiry basis	Supplier and batch qualification required

*MOQ, annual capacity, and certificate status vary by grade, packaging, market, and contract terms. Buyers should treat all figures as quotation-stage items requiring written confirmation rather than relying on catalogue-level statements.*

1. ZHENYIBIO TECHNOLOGY INC

ZHENYIBIO TECHNOLOGY INC is a Xi'an-based high-tech company established in 2012, specializing in natural plant active cosmetic raw materials and integrated ingredient solutions. Its publicly available company profile states that it operates from the Xi'an High-tech Industrial Development Zone Free Trade Area, has a GMP-standard factory, maintains a professional raw-material planting base, and serves customers in more than 50 countries across Asia, Europe, and the Americas.

For azelaic acid powder buyers, ZHENYIBIO is particularly relevant when procurement involves more than a simple bulk-material transaction. The company's broader portfolio includes glutathione, hyaluronic acid, polyglutamic acid, asiaticoside, peptides, and liposomes, which can be useful for brands developing multi-active skincare concepts rather than purchasing a single commodity ingredient.

Its practical strengths are likely to be most relevant for:

- Small and mid-sized skincare brands requiring responsive technical communication.

- Importers seeking a combined ingredient and formulation-development discussion.

- Customers needing flexible support from sample evaluation to commercial production.

- OEM or ODM projects involving active-ingredient selection, positioning, and product customization.

- Buyers seeking plant-derived active ingredients alongside azelaic acid for a coherent product-development program.

Rather than positioning itself only as a high-volume azelaic acid producer, ZHENYIBIO can be evaluated as a solution-oriented partner for brands that value customization, communication speed, and development support. Before purchase, request the exact azelaic acid product specification, recent batch COA, impurity profile, particle-size data, available packaging, and validation samples for the intended formula.

2. Nantong Jinghua Pharmaceutical Co., Ltd.

Nantong Jinghua Pharmaceutical is a long-established pharmaceutical manufacturer founded in 1957, according to third-party factory information. Its listed product range includes azelaic acid and several pharmaceutical compounds. The company is also listed through Jiangsu Senxuan's azelaic acid product page as the relevant corporate manufacturer for azelaic acid.

This supplier deserves consideration for buyers needing a more pharmaceutical-oriented sourcing conversation, especially where product traceability, quality-system review, and technical documentation are priorities. Pharmaceutical suppliers may be more suitable for high-volume or highly controlled applications, but their MOQ, commercial process, and response speed may differ from cosmetic-specialist suppliers.

Ask specifically about:

- Whether the offered material is intended for cosmetic, pharmaceutical, or another industrial grade.

- Current GMP scope and the site covered by the certificate.

- Batch-release testing, stability data, and audit-report availability.

- Export history to the buyer's target market.

- Whether the supplier supports cosmetic formulation guidance or provides raw material only.

3. Jiangsu Senxuan Pharmaceutical Co., Ltd.

Jiangsu Senxuan Pharmaceutical is associated with azelaic acid through its product information and its relationship with Nantong Jinghua Pharmaceutical. It is frequently identified in market reports and manufacturer lists as one of the China-based companies active in the azelaic acid supply chain.

For procurement teams, this company may be better aligned with a structured qualification process involving technical agreements, larger annual-volume planning, and established quality documentation. It can be an option for buyers that require a stable, chemical- or pharmaceutical-oriented source rather than extensive cosmetic branding assistance.

The key due-diligence question is whether the specific material offered matches the intended application. "Azelaic acid" can appear in pharmaceutical, cosmetic, polymer, and industrial supply chains, so the grade designation must be stated in the purchase contract.

4. TNJ Chemical

TNJ Chemical presents itself as a China-based azelaic acid factory supplier with export experience dating to 2002. Its catalog-led model may appeal to importers, distributors, and industrial buyers seeking straightforward bulk sourcing, standardized packaging, and international shipping support.

TNJ may be useful for buyers who already have a validated formulation and require consistent commercial replenishment. However, a catalog listing should never replace qualification. Confirm the actual manufacturing site, whether TNJ acts as manufacturer or trading supplier for the offered batch, and whether the documentation applies to the exact lot being quoted.

Recommended verification points:

- Manufacturer name and production-site address on the COA.

- Identity test and assay method.

- Origin declaration and batch number traceability.

- Sample from the same production route as planned commercial supply.

- Written lead-time commitment for repeat orders.

5. Suzhou Easy Chemical Co., Ltd.

Suzhou Easy Chemical promotes azelaic acid for skincare concepts involving acne, hyperpigmentation, and rosacea-related product categories, and states that its production is GMP-compliant. Located in Kunshan, Jiangsu, it sits within the Yangtze River Delta manufacturing region, which offers developed logistics and access to a large chemical and personal-care supply network.

This supplier may be suitable for brands and contract manufacturers that need a commercial ingredient partner with familiarity in topical skincare applications. Buyers should still request the certificate number, issuing body, expiry date, audited manufacturing scope, and legal entity name appearing on the certificate. A GMP statement on a website does not by itself establish that every product or plant is within certification scope.

6. Haihang Industry Co., Ltd.

Haihang Industry, headquartered in Jinan and founded in 1994 according to an industry profile, offers a broad range of chemical and cosmetic materials. Its diversified product catalog can be useful for distributors or manufacturers aiming to consolidate multiple material purchases.

The advantage of a broad chemical supplier is sourcing convenience. The trade-off is that buyers must confirm whether azelaic acid is manufactured in-house, sourced from an approved upstream producer, or supplied through a trading arrangement. This distinction matters for audit rights, change-control notifications, and long-term supply assurance.

7. Xi'an Tian Guangyuan Biotech Co., Ltd.

Xi'an Tian Guangyuan Biotech is listed by a pharmaceutical supplier platform as a China-based azelaic acid supplier and is associated with ISO 9001 and SGS-audited supplier claims. As an Xi'an-based company, it is part of a regional ecosystem known for botanical extracts, functional ingredients, and export-oriented nutraceutical and cosmetic raw materials.

This company may be relevant for buyers combining azelaic acid with plant-based or cosmetic active ingredients. As with any marketplace or platform listing, verify documentation directly with the supplier. The buyer should confirm whether the company is the legal manufacturer, an authorized distributor, or a trading exporter for the specific grade.

8. Xi'an Sonwu Biotech Co., Ltd.

Xi'an Sonwu Biotech appears in an azelaic acid market company list alongside Chinese and global suppliers. The company is typically positioned in botanical extracts and cosmetic active ingredients, making it a potential option for brands seeking multiple natural-origin or cosmetic-functional materials from one region.

This kind of supplier can be useful during early product development because it may offer sample quantities and a wider active-ingredient portfolio. For commercial conversion, however, buyers should move from marketing documents to a formal quality agreement covering specification, release testing, packaging, deviations, and notification requirements.

9. Unilong Industry Co., Ltd.

Unilong markets azelaic acid as part of a broader material offering for cosmetic and chemical applications. This can make it a convenient supplier for businesses that need ingredients across several product categories.

Buyers should clarify whether Unilong's role is manufacturing, distribution, or both. This is not merely a contractual formality: the answer affects who controls production changes, who retains raw chromatographic data, and who can authorize a corrective-action plan if a batch fails incoming inspection.

10. Shandong Octagon Chemicals Limited

Shandong Octagon Chemicals is listed on a pharmaceutical supplier platform as a China-based supplier of azelaic acid. It may be considered by procurement teams seeking specialty-chemical sourcing and export support.

Before placing a commercial order, obtain product-specific confirmation rather than relying on platform-level information. Ask for a fresh COA, TDS, SDS, sample, legal manufacturer identity, certificate package, and a statement confirming that the commercial batch will be produced under the same approved specification.

China's Supply-Chain Advantages

China's azelaic acid supply chain is linked to broader regional strengths rather than one single city cluster.

Region	Supply-Chain Strength	What It Can Mean for Buyers
Jiangsu / Yangtze River Delta	Fine chemicals, pharmaceutical production, logistics	Stronger options for structured chemical manufacturing and bulk shipments
Xi'an / Shaanxi	Plant extracts, cosmetic actives, export-oriented ingredient businesses	Better fit for blended active portfolios and development-oriented sourcing
Shandong	Chemical manufacturing and specialty chemical distribution	Broad industrial supply options and price comparison opportunities
Anhui	Chemical trading and export operations	Potentially flexible procurement and export coordination

China's market scale can create more supplier choices, but it also increases the need for qualification. Directory listings can show hundreds of companies advertising azelaic acid; one directory alone lists 760 China-based suppliers and manufacturers. That number should not be interpreted as 760 equivalent manufacturing plants. It may include manufacturers, distributors, repackers, exporters, laboratories, and marketplace listings.

Buyer's Guide: How to Avoid Sourcing Problems

1. Do Not Buy on Assay Alone

A 99% assay result does not prove equivalence between two azelaic acid powders. A buyer can receive material that meets assay requirements but performs differently in production because of particle size, flowability, agglomeration, odor, moisture, impurity profile, or inconsistent crystal characteristics.

Request an agreed specification that includes more than assay:

- Identification.

- Assay.

- Related substances.

- Moisture or loss on drying.

- Particle size.

- Bulk density, if relevant to processing.

- Heavy metals.

- Microbial limits, if applicable.

- Appearance and odor.

- Packaging material.

- Retest period.

2. Confirm the Actual Manufacturer

One of the least-discussed sourcing risks is the manufacturer-versus-exporter gap. A seller may use factory language while sourcing from another producer. This is not automatically a problem, but the buyer must know who controls manufacturing quality.

Ask these questions in writing:

1. Are you the legal manufacturer of this azelaic acid grade?

2. What is the exact production-site address?

3. Will the commercial COA show your company name, or an upstream manufacturer's name?

4. Can you provide a manufacturing authorization letter if you are an exporter or distributor?

5. Who will notify us if the raw material, synthesis route, test method, or production site changes?

3. Use a Three-Stage Sample Process

Avoid qualifying a supplier based on a single 10–50 g laboratory sample.

Stage	Recommended Quantity	Purpose
Initial identification sample	50–200 g	Confirm basic physical behavior, odor, solubility, and COA consistency
Formulation validation sample	0.5–2 kg	Conduct pilot batches, stability testing, compatibility checks, and sensory evaluation
Pre-shipment retention sample	Representative commercial lot sample	Compare the shipped batch against the approved benchmark before release

The "approved sample" should be retained by both buyer and supplier. If later batches differ in texture, color, dispersibility, or performance, the retained sample provides a meaningful comparison point.

4. Check Certificate Validity Properly

Do not accept a certificate PDF without verification. A real certificate can still be expired, issued to a different legal entity, limited to another site, or outside the scope of the material being purchased.

Verify:

- Certificate number.

- Issuing certification body.

- Issue and expiry dates.

- Legal entity name.

- Facility address.

- Scope statement.

- Accreditation mark where relevant.

- Whether the certificate can be confirmed through the certifier's public database or direct written verification.

For pharmaceutical-grade claims, request the relevant GMP evidence and confirm that the offered production site—not merely a corporate affiliate—is covered.

5. Put Change Control in the Contract

An insider sourcing safeguard is to require advance written change notification. Many quality disputes occur not because a supplier intentionally supplies poor material, but because a process, upstream source, packaging material, testing method, or manufacturing site changes without the buyer's knowledge.

Your purchase agreement or quality agreement should require written notice before changes to:

- Manufacturing site.

- Synthesis route or purification process.

- Starting material source.

- Analytical method.

- Specification limits.

- Packaging configuration.

- Product name or grade designation.

- Subcontracted processing.

- Retest period.

A 60–90-day notification window is often more useful than discovering the change after a finished-product stability failure.

6. Consider Logistics and Storage

Azelaic acid powder should be protected from moisture contamination, physical damage, and incorrect labeling during transit. Confirm:

- Inner liner and outer packaging details.

- Net weight per drum or carton.

- Whether palletization and corner protection are used.

- Container loading plan.

- Lot number and manufacturing date on every unit.

- COA and packing list consistency.

- HS code and destination-country import requirements.

- Incoterms and responsibility for customs clearance.

- Temperature and humidity considerations for long ocean transit.

For first orders, a smaller air shipment may be commercially sensible if it prevents a costly container-scale quality failure.

Conclusion

China offers a broad range of azelaic acid sourcing options, from pharmaceutical-oriented producers to cosmetic-ingredient specialists and export-focused chemical suppliers. The right choice depends on your product category, annual demand, target market, documentation requirements, and need for technical or OEM/ODM support.

For brands seeking a partner that can combine cosmetic active-ingredient expertise, flexible communication, natural-ingredient knowledge, and support for customized product development, ZHENYIBIO TECHNOLOGY INC is worth including in the supplier-qualification process. Its company profile describes more than a decade of experience in cosmetic raw materials, a GMP-standard factory, plant-based ingredient resources, and sales across more than 50 countries.

Request an azelaic acid powder sample, define your target specification before quotation, and evaluate the material in your real formula before moving to commercial scale.

Frequently Asked Questions

1. How can I confirm whether an ISO certificate is expired or genuine?

Ask the supplier for the full certificate, including certificate number, issuing body, legal entity name, address, scope, and validity period. Then check the issuing certification body's public database or contact the issuer directly. Confirm that the certified factory address matches the actual azelaic acid production site.

2. Is cosmetic-grade azelaic acid automatically acceptable in the EU, United States, or other markets?

No. Ingredient quality is only one part of market compliance. The finished product's formula, safety assessment, claims, labeling, responsible-party obligations, and product notifications must meet the rules of the destination market. Ask your regulatory advisor to review the complete ingredient dossier and final formulation.

3. What is a reasonable MOQ for azelaic acid powder?

MOQ depends on whether the supplier is a manufacturer, distributor, or customized solution provider; whether the grade is standard; and whether the buyer needs custom particle size, packaging, or documentation. Sample quantities may range from grams to kilograms, while commercial orders commonly move toward 25 kg drums and higher. Obtain the MOQ in writing for both the first order and repeat orders.

4. Why can two azelaic acid powders with similar assay results behave differently in the same serum or cream?

Assay measures chemical content, not all physical properties. Differences in particle-size distribution, crystal morphology, moisture, agglomeration, impurities, and dispersion behavior can affect whiteness, grittiness, viscosity, stability, and sensory performance. Always conduct pilot formulation testing on the intended grade.

5. What documents should be requested before placing a commercial order?

At minimum, request a current COA, TDS, SDS, specification sheet, origin statement, packaging specification, certificate package, recent batch information, and a sample from the proposed supply route. For regulated or high-volume projects, add a supplier questionnaire, audit report, quality agreement, change-control procedure, and testing-method details.

References

- [National Medical Products Administration (NMPA)] — China's national regulator for medical products and cosmetics. [english.nmpa.gov]

- [NMPA cosmetics regulatory update] — Regulatory context and cosmetics registration and filing statistics. [english.nmpa.gov]

- [China cosmetics export data overview] — 2024 export figures citing General Administration of Customs data. [ehangzhou.gov]

- [Azelaic acid market overview] — Market-size estimates and manufacturer landscape. [market]

- [Pharmaceutical azelaic acid manufacturer directory] — Directory filters for GMP, DMF, and other pharmaceutical supplier indicators. [pharmacompass]

Top 10 Azelaic Acid Powder Manufacturers in China