Searching for the right supplement manufacturer in China feels overwhelming. Dozens of factories claim "best quality, lowest price." But the wrong choice costs you months, money, and market trust.
The best private-label dietary supplement manufacturer in China is not the one ranked highest on any list. It is the one that matches your specific dosage form, target-market compliance needs, MOQ, packaging, documentation support, and communication style. This guide helps you compare ten manufacturers using practical buyer-fit criteria.
I work on the factory side of this business. Every week, I handle overseas inquiries from brand owners, importers, and e-commerce sellers across dozens of countries. I see what buyers get wrong. I see what good manufacturers ask before quoting. And I see why some partnerships fail before the first shipment leaves the port. This article shares what I know so you can make a smarter sourcing decision.
Why Is There No Universal "Best" Manufacturer for Every Buyer?
Every buyer has a different product, a different market, and a different set of risks. A factory perfect for one brand can be a disaster for another.
There is no single best manufacturer because your dosage form, target market, order volume, compliance documents, packaging needs, and communication expectations are unique. The right factory is the one that fits your specific project, not the one with the most awards on its website.
Let me explain this with a real scenario. A buyer in the Philippines needs 50,000 bottles of vitamin C gummies with local FDA registration documents. Another buyer in Canada needs 5,000 pouches of protein powder with NPN support documents. These two buyers need completely different factories. One factory may excel at gummy production but have zero experience with Canadian NPN documentation. Another may have strong powder lines but minimum order quantities too high for a startup brand.
Key Variables That Change Which Factory Fits You
| Variable | Why It Matters |
|---|---|
| Dosage form | Not all factories produce all forms (capsules, softgels, gummies, powders, tablets, oral liquids, granules, teas) |
| Target market | Different countries require different documents, labels, and testing1 |
| MOQ | Some factories require 100,000 units minimum; others accept 10,000 |
| Certifications | cGMP, ISO, HACCP, FDA registration — but these do not guarantee compliance in YOUR country |
| Communication | Response time, English ability, willingness to explain technical details |
| Packaging | Some factories offer full packaging design; others only do bulk |
Before you contact any manufacturer on this list, prepare your target market, dosage form, ingredients, specification, flavor, packaging style, order volume, budget range, delivery timeline, destination port, and documentation requirements. Serious manufacturers will ask you all of these before giving a real quote. If a factory quotes you instantly without asking questions, that is a red flag.
What Should You Evaluate Beyond Price?
Price is the first thing most buyers compare. But price alone tells you almost nothing about your real sourcing risk.
Beyond price, evaluate testing support, third-party lab reports, registration document assistance, packaging capability, logistics experience, payment flexibility, and communication efficiency. These factors determine whether your product actually arrives on time, passes customs, and meets your market's regulations.
I have seen buyers choose the cheapest quote and then spend three extra months fixing label errors, re-testing failed batches, or waiting for documents the factory did not know how to provide. The "savings" disappeared. In many cases, the total cost ended up higher than the mid-price factory that included proper documentation from the start.
Sourcing Risk Checklist
| Risk Area | What to Ask the Factory |
|---|---|
| Quality testing | Do you provide COA, heavy metal testing, microbiology reports2? |
| Third-party testing | Can you send samples to an independent lab if I request it? |
| Registration documents | Can you provide ingredient lists, specifications, and manufacturing documents for my country's registration? |
| Packaging | Do you offer custom packaging design, or only standard bottles? |
| Logistics | Do you handle export documentation, customs clearance support? |
| Payment terms | Do you accept T/T, L/C, or trade assurance? |
| Communication | How fast do you respond? Do you have dedicated English-speaking staff? |
A good factory will not just answer these questions. It will ask YOU questions back. It will want to know your market, your timeline, your label language, and your testing expectations. That is how you know the factory takes compliance seriously.
How Does Shandong Health Biotech Fit as a Private-Label Partner?
Let me share what we offer at Shandong Health Biotech, using the same criteria I apply to every factory on this list.
Shandong Health Biotech is a dietary supplement OEM/ODM manufacturer with 6,000 square meters of Class-D clean workshops, capability for 8 dosage forms, cGMP/ISO/HACCP/FDA certifications, precision testing equipment, and dedicated export communication teams serving buyers across North America, Europe, Southeast Asia, and the Middle East.
I work here, so I will be transparent about what we do well and where our strengths lie.
Our Capabilities at a Glance
| Criteria | Details |
|---|---|
| Dosage forms | Tablets, capsules, granules, gummies, oral liquids, powders, softgels, substitute teas |
| Certifications | cGMP, ISO9001, ISO22000, HACCP, FDA registered |
| Production area | 6,000 sqm, two Class-D clean workshops |
| Lab equipment | Shimadzu liquid chromatographs, atomic absorption spectrophotometers |
| Services | Custom formulation, ingredient sourcing, flavor customization, packaging design, quality control, export documentation |
| Markets served | North America, Europe, Southeast Asia, Middle East, and others |
| Order flexibility | Pilot-scale and large-volume commercial runs |
What I hear most from our overseas partners is that we respond quickly, we ask the right questions before quoting, and we provide complete documentation packages for their local registration process. We do not claim our certificates make your product automatically compliant in your country. That is your responsibility with your local regulatory body. But we support you with every document, test report, and specification sheet you need to submit.
Our pain point awareness: many buyers tell us previous suppliers were unwilling to cooperate on registration paperwork. We understand this is frustrating. We have a dedicated team that prepares ingredient declarations, manufacturing process descriptions, and quality testing reports in the format your market authority requires.
Who Are the Other Notable Private-Label Supplement Manufacturers in China?
Below are nine other manufacturers with publicly verifiable capabilities. I present them using the same criteria. I encourage you to verify their certifications, MOQs, and documentation support directly.
Nine other notable Chinese supplement manufacturers include Sirio Pharma, By-Health (Guangdong), Baihe Pharma, Aland (Jiangsu), Xian Lyphar Biotech, Nutri-Harbor, Shanghai Brightol, Vitacan Biotech, and Zhejiang Conba Pharmaceutical. Each has different strengths in dosage forms, scale, certifications, and export experience.
1. Sirio Pharma (Guangdong)
Sirio is one of the largest contract manufacturers in China. They are publicly listed and produce softgels, gummies, tablets, and capsules at very high volume.3 Founded: 1993
Main Dosage Forms:
Softgels, Gummies, Capsules, Tablets, Powders, Functional Nutrition Products.
Certifications:
GMP, NSF, BRCGS, TGA, ISO certifications and various international quality standards.
Core Strengths:
- One of the largest nutraceutical contract manufacturers in China
- Global manufacturing and R&D network
- Advanced delivery technologies and dosage innovations
- Extensive experience serving multinational brands
- Strong regulatory and compliance support
Production Capability:
Operates multiple manufacturing facilities with large-scale production capacity across various supplement categories and delivery formats.
Best Fit For:
Their strength is scale and international certifications. Their MOQ tends to be high, which may not suit startup brands. Best fit: established brands needing large runs with strong compliance documentation for Western markets.
2. By-Health / Guangdong By-Health Biotechnology
By-Health is a major domestic brand that also operates OEM lines.4 Founded: 1995
Main Dosage Forms:
Tablets, Capsules, Softgels, Powders, Functional Nutrition Products.
Certifications:
GMP and various domestic quality management certifications.
Core Strengths:
- One of China's leading dietary supplement brands
- Strong investment in nutritional science research
- Advanced quality control systems
- Extensive consumer health market knowledge
- Modern production infrastructure
Production Capability:
Large-scale manufacturing facilities supporting both branded products and selected contract manufacturing projects.
Best Fit For:
They have strong R&D and modern facilities. Their primary focus is the Chinese domestic market, but they have export capabilities. Best fit: buyers who want formulations proven in the Chinese market and are comfortable with higher MOQs.
3. Baihe Pharma
Baihe specializes in tablets, capsules, and granules.5 Founded: 1996
Main Dosage Forms:
Tablets, Hard Capsules, Granules, Powders.
Certifications:
GMP, HACCP, ISO quality management systems.
Core Strengths:
- Pharmaceutical-style manufacturing standards
- Strong expertise in solid dosage forms
- Mature production management systems
- Reliable quality consistency
- Large-scale tablet and capsule production
Production Capability:
Specialized production facilities focused on vitamins, minerals, herbal supplements, and functional nutrition products.
Best Fit For:
They have pharmaceutical-grade production lines. Their strength is solid dosage forms with strict GMP controls. Best fit: buyers focused on traditional tablet and capsule products with pharmaceutical-level quality expectations.
4. Aland Nutraceutical
Aland is known for vitamin C and functional ingredients. They produce both raw materials and finished products.6
Founded: 1990
Main Dosage Forms:
Vitamin Products, Tablets, Capsules, Softgels, Powders.
Certifications:
GMP, ISO certifications and international quality management standards.
Core Strengths:
- Vertical integration from ingredients to finished products
- Strong expertise in vitamin manufacturing
- Global supply chain management
- Large-scale production capabilities
- Extensive export experience
Production Capability:
Produces both active nutritional ingredients and finished dietary supplements for international markets.
Best Fit For:
Their vertical integration from ingredient to finished product is a strength. Best fit: buyers sourcing vitamin and mineral products who want supply chain control from raw material to packaging.
5. Shandong Health Biotech
Shandong Health Biotech is a GMP-certified dietary supplement manufacturer focused on OEM and ODM services for international supplement brands.
Founded: 2006
Main Dosage Forms:
Gummies, Softgels, Capsules, Tablets, Powders, Oral Liquids, Drops, Soft Chews and other customized supplement formats.
Certifications:
GMP, HACCP, ISO22000, HALAL, FDA Registration and export-related documentation support.
Core Strengths:
- One-stop OEM & ODM manufacturing services
- Flexible MOQ options for growing brands
- Custom formulation development
- Packaging and private label solutions
- Registration and compliance support
- Strong export and international logistics experience
Production Capability:
Operates multiple production lines covering mainstream dietary supplement dosage forms and supports projects from concept development to finished product delivery.
Best Fit For:
Importers, distributors, private-label brands, Amazon sellers, and startups seeking flexible manufacturing support and responsive communication.
6. Xi'an Lyphar Biotech
Lyphar focuses on plant extracts and botanical supplements.7
Founded: 2011
Main Dosage Forms:
Capsules, Powders, Herbal Extract Products, Botanical Blends.
Certifications:
GMP, ISO, Kosher, Halal certifications.
Core Strengths:
- Extensive botanical extract expertise
- Strong raw material sourcing capabilities
- Customized herbal formulations
- Wide range of plant-based ingredients
- Competitive ingredient development services
Production Capability:
Provides botanical extracts, herbal ingredients, and customized supplement manufacturing solutions.
Best Fit For:
They offer custom formulation for capsules and powders using herbal ingredients. Best fit: buyers in the botanical and herbal supplement niche who need ingredient expertise and custom extract blends.
7. Nutri-Harbor
Nutri-Harbor specializes in gummy manufacturing and has invested heavily in gummy production lines.
Founded: 2009
Main Dosage Forms:
Gummies, Soft Candies, Functional Confectionery Products.
Certifications:
GMP, HACCP, ISO22000 and food safety management certifications.
Core Strengths:
- Dedicated gummy manufacturing facilities
- Flavor and texture development expertise
- Custom shapes and appearance options
- Sugar-free and functional gummy solutions
- International private-label experience
Production Capability:
Focused on gummy supplement manufacturing with various formulation and packaging customization options.
Best Fit For:
They serve international brands with custom flavors and shapes. Best fit: buyers specifically looking for gummy format products with creative flavor and shape customization.
8. Shanghai Brightol International
Brightol has experience with international trade and offers OEM services for various supplement formats. They position themselves as a trade-oriented company with factory partnerships.
Founded: 2006
Main Dosage Forms:
Capsules, Tablets, Softgels, Powders, Gummies and Liquid Supplements.
Certifications:
Varies depending on manufacturing partners and project requirements.
Core Strengths:
- International sourcing and project management
- Flexible manufacturing network
- Export documentation support
- Multi-factory resource integration
- International trade experience
Production Capability:
Coordinates manufacturing, quality management, packaging, and export logistics through strategic production partnerships.
Best Fit For:
Buyers who want a trading company with quality management oversight and multiple factory resource access.
9. Vitacan Biotech (Shandong)
Vitacan produces capsules, tablets, and powders with a focus on sports nutrition and weight management formulations. Founded: 2010
Main Dosage Forms:
Protein Powders, Capsules, Tablets, Sports Nutrition Products.
Certifications:
GMP, HACCP, ISO quality management certifications.
Core Strengths:
- Sports nutrition specialization
- Weight management formulations
- Protein and performance supplement expertise
- Flexible formulation customization
- Export-oriented manufacturing services
Production Capability:
Produces sports nutrition supplements, protein products, pre-workout formulas, and functional fitness nutrition products.
Best Fit For:
Buyers in the sports nutrition category looking for protein powders, pre-workouts, and fitness-oriented supplement lines.
10. Zhejiang Conba Pharmaceutical
Conba is a pharmaceutical company with supplement manufacturing capabilities.8 Founded: 1969
Main Dosage Forms:
Herbal Supplements, Tablets, Capsules, Granules, Functional Health Products.
Certifications:
Pharmaceutical GMP and various quality management certifications.
Core Strengths:
- Strong pharmaceutical background
- Traditional Chinese Medicine expertise
- Extensive R&D resources
- Large-scale manufacturing facilities
- Well-established domestic market reputation
Production Capability:
Produces pharmaceutical products, herbal supplements, and health products through modern manufacturing facilities.
Best Fit For:
They have TCM (Traditional Chinese Medicine) expertise and modern production facilities. Best fit for buyers interested in supplements with traditional Chinese herbal formulations backed by pharmaceutical manufacturing standards.
Comparison Summary
| Manufacturer | Key Dosage Forms | Scale | Best For |
|---|---|---|---|
| Shandong Health Biotech | All 8 forms | Medium-Large | Flexible MOQ, full documentation, export communication |
| Sirio Pharma | Softgels, gummies, tablets | Very Large | High-volume established brands |
| By-Health | Multiple | Large | Domestic-proven formulations |
| Baihe Pharma | Tablets, capsules, granules | Large | Pharmaceutical-grade solids |
| Aland | Vitamins, capsules | Large | Vertical integration, vitamins |
| Lyphar Biotech | Capsules, powders (botanical) | Medium | Herbal and plant extract products |
| Nutri-Harbor | Gummies | Medium | Gummy specialists |
| Brightol | Multiple | Medium | Trade-oriented sourcing |
| Vitacan | Capsules, powders | Medium | Sports nutrition |
| Conba Pharmaceutical | TCM supplements | Large | Herbal pharmaceutical supplements |
Important reminder: Verify all claims directly. Ask each factory for current certifications, recent third-party test reports, client references, sample products, and documentation samples. Do not rely on website claims alone.
What Do Certifications Actually Mean for Your Market?
Many buyers assume that a factory's cGMP or ISO certificate means the product is automatically legal to sell in their country. This is a dangerous misunderstanding.
Certifications like cGMP, ISO9001, ISO22000, HACCP, and FDA registration mean the factory follows recognized quality management systems. They do NOT mean your finished product is automatically compliant or registered in your specific target market. You must still verify local label, registration, and ingredient regulations.
Let me break this down clearly. A cGMP certificate means the factory follows Good Manufacturing Practices.9 ISO9001 means they have a quality management system.10 FDA registration means the facility is registered with the U.S. FDA — it does NOT mean the FDA has approved any specific product.11
What Certifications Cover vs. What They Don't
| What Certifications Cover | What They Do NOT Cover |
|---|---|
| Factory cleanliness standards | Your country's specific ingredient allowances |
| Production process controls | Your product label compliance |
| Quality management systems | Product registration in your market |
| Raw material verification processes | Import permit requirements |
| Traceability procedures | Local advertising claim regulations |
Your responsibility as the brand owner: work with a local regulatory consultant or your country's food/drug authority to confirm that your product's ingredients, dosages, label claims, and format are legal in your market. A good Chinese manufacturer will provide all the documents you need for this process. But the final compliance verification is your job, not the factory's.
What Should You Prepare Before Contacting Any Manufacturer?
The biggest waste of time in OEM sourcing is sending vague inquiries. "I want to make supplements, please send price" tells the factory nothing.
Before contacting any manufacturer, prepare your target market, label language, dosage form, ingredient list, specification, flavor preferences, packaging type, order volume, budget range, delivery timeline, destination port, and required testing or documentation. This preparation gets you accurate quotes faster and filters out unserious factories.
I receive inquiries every day. The ones that get fast, accurate responses are the ones that include specific details. The ones that say "How much for vitamins?" get a generic response because I cannot quote without knowing what you actually need.
Your Pre-Inquiry Checklist
| Information to Prepare | Example |
|---|---|
| Target market | Philippines, USA, UAE, etc. |
| Label language | English, Arabic, Filipino, etc. |
| Dosage form | Gummies, softgels, capsules, powder, etc. |
| Key ingredients | Vitamin C 500mg, Collagen 1000mg, etc. |
| Flavor (if applicable) | Orange, berry, unflavored |
| Packaging | Bottle (60 count), sachet, blister pack |
| Order volume | 10,000 bottles, 50,000 sachets, etc. |
| Budget range | Target FOB price per unit |
| Delivery timeline | When do you need goods ready? |
| Destination port | Manila, Los Angeles, Dubai, etc. |
| Documents needed | COA, registration docs, third-party testing |
When you send this information in your first email, you immediately signal that you are a serious buyer. Serious manufacturers will prioritize your inquiry. They will ask follow-up questions to clarify details. And they will give you a realistic quote, timeline, and MOQ — not a vague promise.
How Do You Reduce Risk When Working with a New Chinese Supplier?
Working with a new supplier always involves risk. But you can reduce that risk significantly with the right steps.
Reduce sourcing risk by requesting samples before bulk orders, asking for third-party lab test reports, starting with a smaller trial order, verifying certifications independently, visiting the factory or requesting video tours, and establishing clear written agreements on specifications, timelines, and quality standards.12
Here is what I recommend based on years of handling overseas orders:
Risk Reduction Steps
| Step | Why It Matters |
|---|---|
| Request samples | See and test the actual product before committing |
| Ask for COA and lab reports | Verify potency, purity, heavy metals, microbiology |
| Start with a trial order | Test the full process (production, packing, shipping, documents) at lower volume |
| Verify certifications | Contact the certifying body or check online databases |
| Factory video tour or visit | See actual production lines, cleanliness, equipment |
| Written specification agreement | Prevent misunderstandings about formula, packaging, labeling |
| Clear payment terms | Use trade assurance, L/C, or staged payments to protect both sides |
One more thing: pay attention to how the factory communicates during the sample and trial phase. If they are slow, unclear, or defensive about questions now, it will only get worse during bulk production. Communication quality is one of the strongest predictors of a successful long-term partnership.
Conclusion
The best Chinese supplement manufacturer is not a fixed ranking. It is the one that matches your product, market, volume, documentation, and communication needs. Use this guide as a selection tool, prepare your details, and verify everything directly.
"A Comparison of Current Regulatory Frameworks for Nutraceuticals ...", https://pmc.ncbi.nlm.nih.gov/articles/PMC8326690/. International food-standard and national regulatory sources explain that labeling, permitted ingredients, registration, and testing obligations are set or implemented by individual jurisdictions; this supports the article's point that target-market requirements differ, although it does not prove the requirements for every country named by buyers. Evidence role: general_support; source type: institution. Supports: An international or government source should show that food or dietary supplement rules are implemented through national regulatory systems and can differ by market.. Scope note: Contextual support only; the source would not verify every possible country's supplement rules. ↩
"Environmental Contaminants in Food - FDA", https://www.fda.gov/food/chemical-contaminants-pesticides/environmental-contaminants-food. Regulatory and pharmacopeial sources identify toxic elements and microbiological contamination as quality and safety concerns in dietary supplements; this supports requesting heavy-metal and microbiology reports, although it does not determine which tests are required for a specific product or country. Evidence role: mechanism; source type: government. Supports: A government or pharmacopeial source should show that toxic elements and microbial contamination are recognized safety and quality concerns for dietary supplements.. Scope note: Contextual support only; exact testing obligations depend on product type and destination-market regulation. ↩
"[PDF] SIRIO PHARMA CO., LTD. 仙樂健康科技股份有限公司 - HKEXnews", https://www1.hkexnews.hk/app/sehk/2026/108162/documents/sehk26012901586.pdf. Sirio Pharma's exchange filings or annual reports can document its public listing, contract-manufacturing activities, dosage formats, and reported production capacity; this supports the factual parts of the claim, although the phrase 'one of the largest' requires comparative market data beyond a single company filing. Evidence role: case_reference; source type: institution. Supports: A stock-exchange filing or annual report should document Sirio's listed status, product formats, manufacturing role, and production scale.. Scope note: Company filings support status and capacity but may not independently rank the company against all Chinese manufacturers. ↩
"Untitled", https://www.sec.gov/Archives/edgar/data/2054964/000121390025090299/ea0230435-06.htm. By-Health's public filings can document its dietary supplement business, domestic market operations, and manufacturing activities; this supports the claim that it is a major domestic participant, although a separate market-share source would be needed to quantify 'major'. Evidence role: case_reference; source type: institution. Supports: An annual report or exchange filing should verify By-Health's business scope, domestic market presence, and manufacturing or OEM activities.. Scope note: Direct company disclosures support business scope but may not independently establish relative market prominence. ↩
"Efficacy and Safety of Chinese Patent Medicine for the Prevention ...", https://pmc.ncbi.nlm.nih.gov/articles/PMC8996137/. A regulatory listing, certification record, or verifiable company capability document identifying Baihe's tablet, capsule, and granule production would support the stated dosage-form specialization; such evidence would confirm capability but not necessarily production volume or quality performance. Evidence role: case_reference; source type: other. Supports: A verifiable regulatory record, certification listing, or company capability document should confirm Baihe's dosage-form scope.. Scope note: The source may verify listed capabilities without proving current capacity, export readiness, or product quality. ↩
"[XLS] CY24_DAR_Inactive_With_Est_...", https://www.fda.gov/media/191719/download. A verifiable company filing, certification record, or industry listing showing Aland's vitamin C or functional-ingredient production and finished-product manufacturing would support the vertical-integration claim; it would not, by itself, prove market reputation implied by 'known for'. Evidence role: case_reference; source type: other. Supports: A source should verify Aland's vitamin C or functional ingredient business and whether it manufactures both ingredients and finished products.. Scope note: Capability evidence does not independently establish reputation or comparative strength. ↩
"Healthcare Supplements - Xi'an Lyphar Biotech Co., Ltd", https://www.biolyphar.com/healthcare-supplements/page/128/. A registry entry, certification record, or verifiable industry profile describing Xi'an Lyphar Biotech's plant-extract and botanical supplement activities would support the stated business focus; it would not independently assess ingredient efficacy or manufacturing quality. Evidence role: case_reference; source type: other. Supports: A company registry, certification listing, or verifiable industry profile should confirm Lyphar's focus on plant extracts and botanical supplement products.. Scope note: The source would verify business focus, not product performance or quality outcomes. ↩
"XBRL Viewer - SEC.gov", https://www.sec.gov/ix?doc=/Archives/edgar/data/1021561/000114036122005656/brhc10033829_10k.htm. Zhejiang Conba Pharmaceutical's public filings can establish that it is a pharmaceutical company and describe any health-product or supplement-related manufacturing activities; this supports the corporate-status claim, although it may not verify suitability for private-label export projects. Evidence role: case_reference; source type: institution. Supports: An exchange filing or annual report should verify Conba's pharmaceutical status and any supplement, health-product, or related manufacturing activities.. Scope note: Public filings support corporate scope but do not prove OEM fit, export documentation capability, or current private-label availability. ↩
"21 CFR Part 111 -- Current Good Manufacturing Practice in ... - eCFR", https://www.ecfr.gov/current/title-21/chapter-I/subchapter-B/part-111. FDA's dietary supplement cGMP regulations describe current Good Manufacturing Practice requirements for manufacturing, packaging, labeling, and holding dietary supplements; this supports the article's definition, although a certificate from a particular factory would still need separate verification. Evidence role: definition; source type: government. Supports: A government source should define cGMP requirements for dietary supplement manufacturing and quality controls.. Scope note: The source defines cGMP requirements but does not verify any individual factory's certificate. ↩
"ISO 9001:2015 - Quality management systems — Requirements", https://www.iso.org/standard/62085.html. The International Organization for Standardization describes ISO 9001 as a standard specifying requirements for a quality management system; this supports the article's explanation of what ISO 9001 indicates. Evidence role: definition; source type: institution. Supports: The official ISO description should identify ISO 9001 as a standard for quality management systems.. ↩
"Registration of Food Facilities and Other Submissions - FDA", https://www.fda.gov/food/guidance-regulation-food-and-dietary-supplements/registration-food-facilities-and-other-submissions. The U.S. Food and Drug Administration explains that facility registration is an administrative requirement and that dietary supplements are generally not approved by FDA before marketing; this supports the distinction between facility registration and product approval. Evidence role: definition; source type: government. Supports: FDA guidance should confirm that registration identifies a facility to FDA and that dietary supplements are generally not FDA-approved before marketing.. ↩
"Perform Due Diligence - International Trade Administration", https://www.trade.gov/perform-due-diligence. Procurement guidance from international trade and standards organizations treats supplier qualification, documentation review, inspection or audit, independent verification, and clear contractual specifications as standard risk-control practices; this supports the article's risk-reduction checklist, although it is not specific to Chinese supplement factories alone. Evidence role: expert_consensus; source type: institution. Supports: A procurement or trade institution source should support supplier due diligence practices such as documentation checks, inspection, sample review, independent verification, and written agreements.. Scope note: Contextual support only; general procurement guidance may not address every supplement-specific risk. ↩
