For Chinese supplement brands and contract manufacturers eyeing the U.S. market, FDA DSHEA (Dietary Supplement Health and Education Act of 1994) compliance is not optional — it is the cost of entry. Among all regulatory requirements, labeling is where most exporters stumble, and where FDA enforcement actions are most common. A single labeling violation can …
For Chinese supplement brands and contract manufacturers eyeing the U.S. market, FDA DSHEA (Dietary Supplement Health and Education Act of 1994) compliance is not optional — it is the cost of entry. Among all regulatory requirements, labeling is where most exporters stumble, and where FDA enforcement actions are most common. A single labeling violation can result in import holds, warning letters, or permanent market exclusion.
This guide breaks down what U.S. labeling compliance actually requires, in plain language that factory sales teams and brand buyers can use together.
1. The Four Mandatory Label Elements (Must Be on Every Retail Package)
Under FDA regulations, every dietary supplement label must include four core components, or it will be considered misbranded — a prohibited status under 21 U.S.C. § 343.
a) Identity Statement
Must declare the product’s identity — specifically, “Dietary Supplement” followed by the common or usual name of the dietary ingredient(s). Example:
“Dietary Supplement — Coenzyme Q10 (Ubiquinone) 100 mg”
Note: Do not call it a “food,” “drug,” or “natural health product.” The category is legally defined as “Dietary Supplement.”
b) Net Contents
Must state the net quantity of contents (count, weight, or volume) in both metric and avoirdupois units. Place it in the bottom third of the principal display panel.
c) Manufacturer / Distributor Information
Must include the name and place of business (city, state, country) of the manufacturer, packer, or distributor. A P.O. Box is not acceptable. If the product is manufactured for a foreign entity, the label must identify that entity clearly:
“Manufactured for [BrandName], [City, State] — Distributed by [Factory Name], Dongying, China”
d) Supplement Facts Panel (SFP)
Required by 21 CFR § 101.36. Unlike conventional foods that use Nutrition Facts, dietary supplements use the Supplement Facts format. This panel must list:
- Serving size and servings per container
- Each dietary ingredient with the quantity per serving
- Daily Value (% DV) — calculated against the most recent FDA Reference Daily Intakes (RDIs)
- Percent Daily Value for active ingredients (e.g., Vitamin C: 500 mg — 556% DV)
Critical for OEM buyers: If your factory uses proprietary blends, each ingredient in the blend must be listed individually by weight — no “Proprietary Blend 1,200 mg” with hidden individual ingredients. This was clarified in Prot. 3 v. Gen. Nutrition Corp. and is strictly enforced.
2. Ingredient Declaration: Format Matters
Dietary ingredients must be listed in the Supplement Facts panel using the ingredient’s common or usual name. For botanical ingredients, the part of the plant and the extract form should be specified:
✓ Ashwagandha Root Extract (Withania somnifera) — standardized to 5% withanolides
✗ “Ashwagandha” (unqualified, vague)
All inactive ingredients (fillers, excipients, coatings, colors, flavors) must be declared in an “Other Ingredients” list below the Supplement Facts panel. Common allergens — milk, soy, wheat, peanuts, tree nuts, fish, shellfish, eggs — must be declared regardless of amount, per the Food Allergen Labeling and Consumer Protection Act (FALCPA).
3. Health Claims: The Three Categories (And Why the Difference Matters)
This is the area where Chinese exporters lose the most business. Misunderstanding claim categories leads to illegal labeling and import refusal.
Category A — Nutrient Content Claims
Describe the level of a nutrient in a product. Example: “High in Calcium,” “Excellent Source of Fiber.” These are straightforward but must meet FDA-defined thresholds (21 CFR § 101.54).
Category B — Structure/Function Claims
Describe an effect on the structure or function of the body. Example: “Supports joint health,” “Promotes calm and relaxation.” These do not require pre-approval but must be accompanied by a mandatory disclaimer:
“*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.”
Category C — Health Claims (Qualified Health Claims & Authoritative Statements)
Claims that specifically reference a disease or health condition (e.g., “Calcium may reduce the risk of osteoporosis”). These require FDA authorization via a health claim petition or must meet the criteria for an Authorized Health Claim (significant scientific agreement, SSA standard) or a Qualified Health Claim (lesser evidence, with required qualifying language).
Practical rule for OEM buyers: If your brand buyer is planning to make any claim beyond “supports healthy [X],” engage a U.S. regulatory consultant before label design. As the manufacturer, you should verify claims are not crossing into prohibited disease claims — 21 CFR § 101.93 prohibits claims that “diagnose, mitigate, treat, cure, or prevent” specific diseases.
4. Foreign Language Requirements
If a supplement is marketed to Spanish-speaking consumers in the U.S., the entire label must be in Spanish, per FDA guidance and 21 CFR § 101.9. This is often overlooked by Chinese brands launching on Amazon U.S. without realizing a significant portion of their audience is Spanish-dominant.
5. Label Font Size: The 6-Point Rule
All required label information must be in English with lettering at least 1/16 inch (1.58 mm) in height. The Supplement Facts box must meet minimum type size requirements based on container size (21 CFR § 101.9). Labels with illegible type — common in small bottles with dense formatting — are a frequent cause of import refusal.
6. Good Manufacturing Practice (GMP) Statement
While not a direct label element, FDA requires that dietary supplement manufacturers implement GMPs per 21 CFR Part 111. A label may reference GMP compliance, but avoid vague claims like “FDA Approved” — supplements are not subject to FDA pre-approval. Only facilities are registered, not products.
7. The Amazon / eCommerce Labeling Layer
For brands selling on Amazon, additional requirements apply beyond FDA baseline:
- Labels must include batch/lot numbers linked to COA
- FNSKU (Fulfillment Network Stock Keeping Unit) labels must be applied
- Nutrition Facts must match exactly what is in Amazon’s product database (if they pre-populate it, changes require a new submission)
- Amazon’s transparency program requires scannable codes linking to authentic manufacturing data
8. How Your OEM Partner Can Help
For brands working with a Chinese contract manufacturer, your OEM partner should offer:
- Pre-export label compliance review against FDA DSHEA requirements
- Suggested label layouts compliant with 21 CFR Part 101
- COA (Certificate of Analysis) supporting each ingredient quantity on the label
- Allergen matrix documentation for “Other Ingredients” declaration
- GMP certificate and third-party audit reports available for buyer due diligence
At Dongying Zuoning Biotechnology Co., Ltd., our regulatory team works directly with brand buyers from label concept through FDA-compliant final artwork. We support softgel, capsule, tablet, and gummy formats for the U.S. market, with full documentation packages including SDS, COA, and GMP certificates.
Summary: Your DSHEA Labeling Checklist
- ☐ “Dietary Supplement” identity statement present
- ☐ Supplement Facts panel complete and accurate
- ☐ All active ingredients listed individually by name and quantity
- ☐ All inactive ingredients and allergens declared
- ☐ Manufacturer/distributor information complete (no P.O. Box)
- ☐ Net contents in correct location and units
- ☐ Structure/function claims paired with mandatory FDA disclaimer
- ☐ No disease claims without proper FDA authorization
- ☐ Type size meets 1/16 inch minimum
- ☐ Bilingual labeling if marketed to Spanish-speaking consumers
If you’re sourcing from China and preparing to enter the U.S. market, labeling compliance is not something to delegate — it’s a strategic decision that affects your speed to shelf, your Amazon account health, and your brand’s legal exposure.
Ready to start a compliant U.S.-market project?
📧 Wade@zuoningbio.com
📞 +86 187 5469 6289
🌐 www.zuoningbio.com
