By Vincent Cruz

Thai beauty sells fast in the American market. Whitening serums, snail serums, and sheet masks move through TikTok Shop, Amazon, and Instagram sellers, often before the brand has spoken to a single U.S. regulator. That speed is exactly the problem: most Thai sellers discover FDA registration only after a shipment is held or a listing is flagged — with the products already in the country.

This guide is written for the Thai brand owner selling — or planning to sell — in the U.S.: what MoCRA requires of you, where Thai and U.S. rules diverge, and the specific mistakes that catch Thai brands. For the full compliance picture, start with the MoCRA Compliance Guide for Cosmetic Brands.

The core rule: Thai compliance does not transfer

Everything in this guide follows from one fact: FDA does not recognize Thai compliance as a substitute for U.S. compliance. Specifically:

Your Thai FDA cosmetic notification (the notification number issued under Thailand’s Cosmetic Act) means nothing to the U.S. FDA. The two agencies share no filings, and a Thai notification number is not a U.S. product listing.
Your Thai GMP certification (including ASEAN GMP compliance) is good evidence of practice, but it satisfies no U.S. filing requirement.
Your Thai labelling approvals do not transfer. Labels compliant in Bangkok routinely fail U.S. rules on quantity declarations, contacts, and claims.
A Certificate of Free Sale or export documentation helps with customs and buyers. It is not an FDA filing.

Plan your U.S. sales as a fresh compliance project — before your first shipment, not after your first problem.

Step 1: Register your facility with FDA

If your products are manufactured or processed in Thailand (or anywhere outside the U.S.) for sale in America, the facility must register with FDA. Key points for Thai brands:

You need an FEI number first. The FDA Establishment Identifier is required before registration can be filed. Request it from FDA by email; processing typically takes 7 to 10 business days. Run the free FEI check to see whether your facility already has one; see What Is an FDA FEI Number? for how it works.
Registration is filed through Cosmetics Direct, FDA’s online portal, using Form FDA 5066. The step-by-step process is covered in Cosmetics Direct: How to Register Your Facility.
Registration renews every two years, based on your facility’s initial registration date, with automated reminders from FDA. See MoCRA Biennial Renewal Explained.
Using a contract manufacturer? Thailand’s OEM and ODM factories supply hundreds of small brands. The facility that manufactures the product is the one that registers: if your OEM makes your products, that facility registers (and needs its own U.S. agent). See Private Label Cosmetics: Who Registers Under MoCRA.

Step 2: Name a U.S. agent

Every foreign facility registering with FDA must designate a U.S. agent: a person or business physically present in the United States who serves as FDA’s official contact for the facility. This is not optional, and neither a Thai address, a marketplace seller account, nor your freight forwarder can fill the role.

The agent receives FDA correspondence, relays it to you, and is the contact FDA reaches out to with questions about your facility. Our own service is flat pricing: $450 one-time plus $34.99 per month per facility. For how to evaluate providers, see How to Choose a MoCRA U.S. Agent and Who Can Be a MoCRA U.S. Agent.

Step 3: List your products

Each cosmetic product sold in the U.S. must be listed with FDA through Cosmetics Direct (Form FDA 5067), filed by the responsible person — the manufacturer, packer, or distributor whose name appears on the label. Listings include product and ingredient information and must be kept current with annual updates.

Note the difference from Thailand: your Thai notification covers the Thai market only. The U.S. listing is a separate filing in a different system, and a product can be fully notified in Thailand and completely unlisted in America. For how registration and listing differ, see Facility Registration vs Product Listing Explained.

Step 4: Fix your labels for the U.S. market

Thai labels do not automatically comply with U.S. labeling law. The differences that matter most:

Ingredient declaration. The U.S. uses INCI-style nomenclature, so your ingredient names mostly transfer. But the U.S. requires ingredients in descending order of predominance with specific formatting rules, and FDA is developing fragrance allergen labeling regulations that will add new disclosure requirements.

Net quantity. U.S. consumer commodities must state net quantity in both U.S. customary and metric units, placed in a specific location on the principal display panel. Thai labels showing metric only need updating.

Name and place of business. The label must show the name and place of business of the manufacturer, packer, or distributor. A Thai address alone is acceptable only if the product is not misleading about origin; many Thai brands add their U.S. distributor’s information.

Domestic contact for adverse events. MoCRA requires labels to carry a U.S. domestic contact — an address, phone number, or electronic contact such as a website — through which consumers can report adverse events. A Thailand-only contact does not satisfy this.

Language. All required label information must be in English and must be prominent and conspicuous. Thai text can appear as well, but a Thai-only label — or a loose English sticker over required panels — does not comply. (Products also regulated as drugs need Drug Facts labeling and specific warnings instead.)

Claims review. “Whitening” is a normal category in Thailand. In the U.S., a product intended to lighten skin by altering pigmentation crosses into drug territory, and whitening claims are read as evidence of intended use. See Is Your Product a Cosmetic or a Drug?.

For the detailed labeling changes MoCRA introduced, see MoCRA Labeling Changes.

The pitfalls that catch Thai brands specifically

The live-listing illusion. This is the biggest one. Your TikTok Shop listing is approved and orders are shipping, so the products must be legal — that reasoning has burned many Thai sellers. Marketplace approval is a platform decision, not an FDA one. Sellers typically learn about facility registration when a platform demands regulatory documents, when customs holds a shipment, or when a competitor reports the listing — and a detention is an expensive way to learn, with storage fees running while you create paperwork that should have existed before the container left Thailand. What to provide when a platform demands an “FDA certificate” that does not exist: TikTok Shop FDA Certificate Requests and Selling Cosmetics on Amazon: FDA Requirements.
Whitening claims and ingredients. U.S. regulators actively scrutinize skin-lightening products for mercury — still found in informal-market whitening creams — and hydroquinone, which cannot be sold in U.S. cosmetics as it is in parts of Asia. Detentions and marketplace removals are a recurring pattern; the consequences of selling unregistered are spelled out in What Happens If You Don’t Register Under MoCRA.
Assuming the aggregator handled it. Many Thai brands sell through an aggregator, export agent, or U.S. reseller and assume compliance was part of the deal. It almost never is: unless someone filed your facility registration and listings, they were not filed.
Small-business exemption confusion. The U.S. small-business exemption (Section 612 of the FD&C Act, 21 U.S.C. section 364h) is based on U.S. sales, not Thai revenue, and it never exempts labeling, safety substantiation, or adverse event reporting. Check the exemption worksheet rather than assuming.
Forgetting the ongoing duties. Registration is not a one-time event: biennial renewal, annual listing updates, adverse event reporting within 15 business days for serious events, and records kept for six years that FDA can demand to see. See MoCRA Adverse Event Reporting.

A realistic Thailand-to-US launch sequence

Classify every product as cosmetic or drug for the U.S. market (whitening lines need this review first).
Confirm whether you qualify for the small-business exemption; if not, proceed with full compliance.
Request your facility’s FEI number (7 to 10 business days).
Choose and appoint your U.S. agent.
File facility registration via Cosmetics Direct.
File product listings.
Finalize U.S.-compliant labels before the first shipment.
Set up adverse event intake and record-keeping from day one.

For realistic timing on each step, see How Long Does MoCRA Facility Registration Take?.

FAQ

My products are already selling on TikTok Shop. Am I compliant? Not necessarily. A live listing means the platform accepted your products; it says nothing about FDA facility registration, product listings, or labeling. Most sellers discover the gap only when the platform requests documents or a shipment is held.

Does my Thai FDA notification count as a U.S. product listing? No. The two FDAs are unrelated agencies with separate systems; your Thai notification number has no standing in the U.S., and products must be listed through Cosmetics Direct (Form FDA 5067).

Do I need a U.S. agent if a U.S. company imports my products? Yes. The foreign facility must designate its own U.S. agent as part of registration; your importer cannot substitute unless it formally serves as the agent and meets FDA’s requirements.

Can I sell whitening products in the US? Carefully. Products that lighten skin by altering pigmentation are treated as drugs in the U.S., and lightening products draw heightened scrutiny for mercury and hydroquinone. Many Thai whitening lines need their claims reworked — or a different regulatory pathway — before they can be sold lawfully.

How long does the whole process take for a Thai brand? The FEI request alone takes 7 to 10 business days, and gathering registration details, appointing an agent, and finalizing labels adds more time. Plan for several weeks minimum from a standing start; see How Long Does MoCRA Facility Registration Take? for the full breakdown.

Next step: Thai brand already selling — or about to sell — in the U.S.? Contact us for a straight assessment of what your products need, or run the free FEI check to confirm whether your facility already has an FDA Establishment Identifier.

This article is for educational purposes only and is not legal advice. US MoCRA Agent is a private service provider and is not affiliated with or endorsed by the FDA.