Cosmetics OEM in Korea: Must You Report Ingredients Before Sale?
BySangjin Ji, Administrative Attorney3 years of embassy visa practiceLinkedIn
Your OEM manufacturer in South Korea has completed production of your new moisturizer. The product has passed quality testing, the packaging has been approved, and your online store is almost ready to launch.
Then you receive the manufacturer's final ingredient information.
Some of the ingredient names do not match the documents you received during product development.
Are these simply different names for the same ingredients, or did the manufacturer change the formulation before production?
And more importantly, can your company start distributing or selling the product before resolving the discrepancy?
For businesses launching a cosmetics brand in Korea, completing production is an important milestone. But it does not necessarily mean that every regulatory requirement for bringing the product to market has been completed.
Under Article 5(5) of Korea's Cosmetics Act (「화장품법」), a registered cosmetics responsible distributor must generally report the ingredients used to manufacture domestically produced cosmetics before distributing or selling those products.
This obligation remains even when a third-party OEM manufacturer handles ingredient sourcing, production, packaging, and quality testing.
The legal deadline is not a fixed number of days after manufacturing. The ingredient list must be reported before distribution or sale.
This requirement is also separate from annual production reporting, which generally covers the previous calendar year's production and is due by the end of February of the following year.
Before preparing the ingredient report, your company therefore needs to establish which documents accurately describe the finished product.
If the OEM Manufacturer Made the Product, Who Is Responsible for Reporting?
Consider Min-su, who plans to launch a moisturizer under the brand name "Miso Beauty."
His company is registered as a cosmetics responsible distributor in South Korea. Rather than operating its own factory, the company contracts with a domestic OEM manufacturer to source the ingredients, manufacture the moisturizer, and perform quality testing.
Once production is complete, Min-su might ask the factory:
"Have you already completed the ingredient reporting?"
It is a reasonable question. The manufacturer has handled the entire production process and possesses the technical ingredient information.
However, Korean cosmetics law distinguishes the responsibilities of the manufacturer from those of the company responsible for distributing and selling the finished product.
Article 5(5) of the Cosmetics Act requires cosmetics responsible distributors to report certain information, including production or import performance and ingredients used in manufacturing, to the Ministry of Food and Drug Safety (MFDS).
The Act expressly requires ingredient lists to be reported before cosmetics are distributed or sold.
Article 13 of the Enforcement Rule of the Cosmetics Act (「화장품법 시행규칙」) and the MFDS regulation on reporting cosmetics production, import performance, and ingredient lists provide further details.
The Korea Cosmetics Association (KCA) also identifies responsible distributors that outsource manufacturing and subsequently distribute or sell the products as entities subject to the relevant reporting requirements.
The fact that a brand does not own a manufacturing facility does not eliminate its reporting responsibility.
Supplying ingredient data and bearing the reporting obligation are different matters
An OEM agreement may state that the manufacturer must provide ingredient information.
The factory can supply the documents needed for reporting and cooperate with the brand in preparing them.
But a contractual obligation to provide information is not the same as the statutory obligation to report it.
In Min-su's case, his registered company remains the responsible distributor.
Instead of asking only whether the factory has completed the report, he should confirm which ingredients were used in the finished product, whether any changes occurred after the sample stage, and which manufacturing documents represent the final formulation.
Those records provide the basis for the company's reporting process.
Which Ingredient List Describes the Product Actually Manufactured?
Suppose Min-su's company has three documents:
- The ingredient information provided during initial sample development.
- The manufacturer's final ingredient information following production.
- The full ingredient declaration prepared for printing on the product packaging.
All three relate to the same moisturizer.
However, they may have been prepared at different stages of development.
For example, the company and manufacturer may have agreed to replace a fragrance ingredient before final production.
The manufacturer's finalized formulation could reflect that change while the earlier sample document still lists the original fragrance.
If the responsible distributor prepares its ingredient report using the earlier document, the reported information may not match the ingredients used in the product actually manufactured.
The opposite situation is also possible.
A difference in ingredient names does not necessarily mean that the formulation has changed.
Two documents may use different names for the same substance. A compound ingredient may also be described differently depending on how its constituent ingredients are presented.
The company therefore needs to determine whether the discrepancy involves terminology, the description of a mixture, or an actual change in formulation.
This requires confirmation against the manufacturer's final manufacturing records.
A document labeled "Final" is not necessarily sufficient on its own. The company should establish which product and formulation that file identifies and whether it corresponds to the product intended for sale.
What if the manufacturer treats its formulation as a trade secret?
An OEM manufacturer may wish to protect detailed formulation ratios and proprietary production information.
That commercial interest must be distinguished from the responsible distributor's need to obtain accurate information for its legal reporting obligations.
The responsible distributor cannot replace missing ingredient information with estimates.
The parties should identify which information must be provided for reporting purposes and agree on an appropriate method of supplying it while addressing confidentiality concerns.
This is also why an OEM manufacturing agreement should specify how final ingredient information will be delivered, who will receive it, and when it must be available.
If those arrangements are left unresolved until the product is ready to ship, the brand may still lack the information needed for its own reporting obligations.
Can You Simply Copy the Ingredient Declaration from the Packaging?
Many cosmetics brands prepare their packaging before completing the regulatory reporting process.
The packaging designer may already have received a full ingredient declaration.
It can be tempting to copy that information into the ingredient reporting system.
However, the two requirements serve different legal purposes.
Article 10(1)(3) of the Cosmetics Act generally requires the labeling of ingredients used in cosmetics, subject to exceptions specified in the relevant subordinate regulations.
This provision concerns the information displayed to consumers.
Ingredient list reporting, by contrast, is a separate obligation under Article 5(5) of the Cosmetics Act.
The responsible distributor must identify the product being reported and prepare the information about ingredients used in manufacturing according to the applicable reporting requirements.
Having a completed packaging declaration does not, by itself, establish that all information required for ingredient reporting has been obtained.
The company should distinguish between:
- The manufacturer's confirmed information about ingredients actually used in production.
- The ingredient declaration prepared for consumer packaging under the applicable labeling rules.
- The product and ingredient information required by the Korea Cosmetics Association reporting system.
Where these documents differ, the company must establish why.
A discrepancy might arise because the legal requirements for presenting information differ, because an outdated document is being used, or because the ingredients actually changed.
The appropriate response depends on the reason for the difference.
Ingredient reporting is not a government safety approval
Submitting an ingredient list does not mean the MFDS has granted prior approval of the product's safety.
Article 8 of the Cosmetics Act separately regulates prohibited ingredients and ingredients subject to specified conditions of use.
Quality control obligations also remain applicable.
Where a product is represented as providing whitening or wrinkle-improvement functions, the company must separately determine whether the functional cosmetics examination or reporting procedures under Article 4 apply.
An ingredient report does not replace ingredient restrictions, quality control, labeling obligations, or applicable functional cosmetics procedures.
Each requirement must be considered according to the actual product and business structure.
What if the Factory's Product Name Differs from the Commercial Name?
Ingredient information is not the only information that needs to be consistent.
An OEM manufacturer may identify a product using an internal development name.
For example, its manufacturing documents may refer to "MB Moisturizing Cream," while the commercial name selected by the brand is "Miso Beauty Moisturizer."
Different names do not necessarily indicate different products.
However, the responsible distributor should confirm that both names identify the same finished product before preparing its reporting documents.
This concern is reflected in the Korea Cosmetics Association's administrative guidance.
In a notice dated February 25, 2022, the Association explained circumstances in which a production reporting system could display an issue indicating that ingredient list reporting was required.
One example involved a mismatch between the product name used for ingredient list reporting and the name entered for production reporting.
The notice described the reporting system at that time; it does not establish that the same warning message will necessarily appear in the current system.
Nevertheless, it illustrates why companies should maintain consistent product information across reporting records.
Match the product before changing its name
The first step is not simply to replace every internal name with the commercial name.
Instead, determine whether the manufacturer's internal identifier and the brand's intended sales name refer to the same product.
Then compare the responsible distributor's registration information, the manufacturer's identity, the final ingredient records, and the product name used for reporting.
If the company plans to sell both a moisturizer and a lotion, it must also distinguish those products.
Similar brand names do not mean that a single ingredient report automatically covers multiple products.
Each product being reported needs to be identified and matched to its corresponding manufacturing information.
The Korea Cosmetics Association provides guidance on entering details such as responsible distributor information, product names, manufacturers, and ingredient names.
Its reporting system supports direct entry and spreadsheet-based reporting methods. Companies should check the forms and entry requirements available at the time they actually submit their reports.
If the reason for a discrepancy remains unclear, the company should obtain clarification from the manufacturer before entering information based on assumptions.
Does Every New Manufacturing Batch Require a New Ingredient Report?
Consider a company that has already reported the ingredient list for its first production run.
The same moisturizer is then manufactured again.
The second production run receives a different manufacturing lot number.
Does that automatically require a new ingredient list report?
Not necessarily.
A manufacturing lot number identifies a particular production batch. A change in that number does not, by itself, mean the ingredients used in manufacturing have changed.
The company must compare the ingredients actually used in the new production run with the information previously reported.
If the ingredient list remains unchanged, the new lot number alone does not necessarily establish a change to that list.
However, the same commercial product name can still be used for a product whose ingredients have changed.
For example, the manufacturer may replace a fragrance ingredient in a subsequent production run.
If the ingredients actually used in manufacturing have changed, the responsible distributor must assess the difference against its earlier report.
Article 13(2) of the Enforcement Rule of the Cosmetics Act requires changes to previously reported ingredient lists to be reported before distribution or sale.
Completing the initial report does not eliminate the obligation to report subsequent changes where the statutory condition is met.
The relevant distinctions are:
- First-time reporting: A product is being prepared for initial distribution or sale.
- Changed ingredient list: Ingredients used in manufacturing differ from those previously reported.
- Repeated production without ingredient changes: The existing report must be compared with the current product information rather than assuming that a new lot number is a changed ingredient list.
Changes to product identifiers, manufacturer details, or other reported information may also need to be handled under the reporting system's applicable procedures.
The company should confirm the appropriate method for dealing with those changes.
This makes the manufacturer's ingredient change history valuable beyond the first product launch.
A brand needs a reliable way to obtain updated manufacturing information whenever production is repeated.
When Must Ingredient Reporting Be Completed Before Launch?
Suppose the manufacturer has finished production and is preparing to ship the finished moisturizer.
The brand has scheduled delivery to a warehouse and selected an online sales launch date.
When must the ingredient report be completed?
The Cosmetics Act establishes the deadline as before distribution or sale.
It does not set a general deadline calculated as a fixed number of days after the factory completes production.
Equally, it would be unsafe to assume that the relevant deadline is always the date on which the first online customer places an order.
The actual distribution and sales arrangements must be considered to identify when the legal requirement applies.
For this reason, the launch schedule should account for more than product photography, packaging, shipping, and online store preparation.
It should also allow time to:
- Obtain the manufacturer's final ingredient information.
- Confirm the commercial product name and manufacturer details.
- Compare the reporting information with the final manufacturing records.
- Submit the required report and check its result before distribution or sale.
The Korea Cosmetics Association system distinguishes ingredient reporting from checking reporting results.
Entering information into a form is not necessarily the same as completing the required submission.
The company should verify the reporting result and retain the information needed to identify which product was reported.
If the manufacturer has not finalized the ingredient information, the solution is not to enter estimated ingredient names simply to meet a proposed launch date.
The reporting information must reflect the actual product.
At the same time, completing manufacturing does not mean the product must automatically be reported on that exact day.
The statutory point of reference remains distribution or sale.
The operational task is to secure accurate final manufacturing information and complete reporting before the applicable distribution or sales activity begins.
Why Is the End of February Also Mentioned in Cosmetics Reporting?
Businesses researching Korean cosmetics compliance may encounter references to a reporting deadline at the end of February.
Does this mean that ingredient reporting can be postponed until February of the following year?
No.
The reporting obligations must be distinguished.
Ingredient list reporting
For domestic cosmetics covered by the ordinary responsible distributor reporting requirement, ingredients used in manufacturing must generally be reported before the product is distributed or sold.
Where a previously reported ingredient list changes, the change must likewise be reported before distribution or sale under Article 13(2) of the Enforcement Rule.
Annual production reporting
Production performance for the preceding year is reported by the end of February of the following year.
Article 13 of the Enforcement Rule distinguishes this annual reporting requirement from ingredient list reporting before distribution or sale.
Production performance and sales performance are also different.
The number of products sold during a year is not necessarily the same as the quantity manufactured during that year.
The information entered in a production report must reflect the applicable reporting basis.
The Korea Cosmetics Association operates separate functions for ingredient list reporting and annual production reporting.
It also provides guidance for responsible distributors that have no production performance during the relevant year, including reporting no production activity.
A company with no manufacturing activity should therefore still check the annual reporting requirements rather than assuming that no action is necessary.
On May 13, 2026, the MFDS amended its regulation on cosmetics production, import performance, and ingredient list reporting, including procedures relating to the verification of circumstances of businesses that had not submitted required reports.
That amendment did not merge the ingredient list reporting deadline with the annual production reporting deadline.
Companies should continue to manage these obligations separately.
Do Imported or Customized Cosmetics Follow the Same Rules?
The discussion so far concerns domestically manufactured cosmetics produced by an OEM manufacturer and distributed or sold by a registered responsible distributor.
Different business structures may be subject to different reporting conditions.
Imported cosmetics
Article 13(3) of the Enforcement Rule provides a conditional exception concerning certain import performance and ingredient list reporting obligations for responsible distributors importing cosmetics after making a standard customs clearance pre-report using electronic trade documents.
The scope of this exception depends on the specific legal conditions.
It does not automatically apply to cosmetics manufactured domestically through an OEM factory.
A business importing finished cosmetics therefore needs to examine its actual import and reporting arrangements separately from a domestic OEM arrangement.
Customized cosmetics
Customized cosmetics businesses are subject to a different reporting timetable.
Under Article 13(4) of the Enforcement Rule, customized cosmetics sellers report the ingredients used in sales during the preceding year by the end of February each year.
That is different from the ordinary pre-distribution or pre-sale reporting obligation discussed for domestically manufactured OEM finished products.
Functional cosmetics
A whitening or wrinkle-improvement product raises a separate question.
Article 4 of the Cosmetics Act provides for functional cosmetics examination or reporting procedures, depending on the applicable requirements.
The fact that a brand has completed ingredient list reporting does not establish that any required functional cosmetics procedure has also been completed.
Businesses must therefore distinguish the manufacturing and sales structure, the reporting obligation, and any separate functional cosmetics requirements.
What Should Your Company Check Before Releasing the Finished Product?
Return to Min-su's moisturizer.
The OEM factory has completed production. The product images are ready for the online store, and the company is preparing for distribution.
But the company holds several documents prepared at different stages.
The manufacturer's internal development name does not necessarily match the commercial product name.
The original sample information and final ingredient records may also differ.
Before preparing the ingredient report, the brand needs to establish which information accurately identifies the finished product.
Start with the manufacturer's finalized ingredient information.
Compare it with the intended commercial name, the manufacturer identified in the OEM agreement, and the packaging declaration.
If the product has previously been reported, compare the current manufacturing information with the earlier reporting records.
Where the relevant information is complete and consistent, the responsible distributor can generally handle the reporting process directly by following the Korea Cosmetics Association's instructions.
External professional assistance is not inherently required for every ingredient list report.
However, the task becomes different when the documents do not agree.
For example:
- The OEM agreement requires the manufacturer to provide ingredient information, but the final records have not been delivered.
- The manufacturer's final ingredient information differs from the packaging declaration.
- The manufacturer's internal product name differs from the commercial name, and the company has not confirmed that both refer to the same product.
- Previously reported ingredient information differs from the latest production records, making it necessary to determine whether a change report is required.
In these situations, the immediate problem is not simply how to operate an online reporting form.
The company first needs to identify which documents are accurate, what information is missing, and which questions must be answered by the manufacturer.
What document-related work can an Administrative Attorney assist with?
Under Article 2 of the Administrative Attorneys Act (「행정사법」), subject to restrictions imposed by other laws, an Administrative Attorney may prepare certain documents submitted to administrative authorities and documents concerning rights and obligations within the legally permitted scope.
For an OEM cosmetics project, document-related work may involve comparing the responsible distributor's registration information with the parties identified in the manufacturing agreement.
It may also involve identifying discrepancies between final ingredient records, product names, packaging information, and previous reports.
The result can help establish which information must be confirmed with the manufacturer and what needs to be organized in reporting-related documents.
The precise scope of document preparation and any legally permitted submission work depends on the nature of the procedure and the agreed authorization.
This work does not replace laboratory testing or guarantee the technical safety or quality of a cosmetic product.
The manufacturer must confirm the ingredients actually used in production, and the brand must establish the commercial product information it intends to use.
An Administrative Attorney cannot supply unknown ingredient information by assumption.
The purpose of the document work is to bring the confirmed information together accurately so that the company can determine which reporting steps are required.
If you are preparing to distribute or sell an OEM cosmetic product in South Korea, you may send the final ingredient information or the relevant document-delivery provisions of your OEM agreement, the intended product name and packaging draft, and any previous ingredient reporting records currently available. Ethos Administrative Attorney Office offers a free preliminary review to identify whether an initial or updated report needs consideration, which information appears inconsistent, and what the manufacturer should clarify; preparation of reporting-related documents and submissions where legally permitted are separately scoped paid services.
Three key takeaways
- A cosmetics responsible distributor placing domestically manufactured OEM products on the Korean market must generally report the ingredients used in manufacturing before distribution or sale.
- Changes to previously reported ingredient lists must also be reported before distribution or sale, while annual production performance for the preceding year is reported by the end of February of the following year.
- Final manufacturing records, commercial product names, packaging declarations, and prior reports must be compared; ingredient reporting does not replace product safety requirements or applicable functional cosmetics procedures.