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The short answer: each stage locks one decision that the next stage depends on

Turning a formulation idea into a product is not three blocks of work called planning, sampling and production. It is a chain in which one decision is settled at each stage, and that decision either opens or blocks the next piece of work. Who the cosmetics responsible distributing business is, whether you are going the functional-cosmetics route, when the formula is closed, when the label copy is finalized, and who performs quality testing for each manufacturing lot: those are the decisions.

That is why the real answer to "how long does development take" is an order of operations rather than a number of weeks. For the same product, deciding to make a functional claim moves the moment you have to close the formula several weeks earlier, and deciding to present the product for infants or children adds documents that must exist before the product is distributed. Each stage below is organized around what that decision opens, and what else has to be reopened if you change it later.

This article keeps the steps the page already described, taking a development proposal and turning it into product goals, separating ingredient candidates from the final formula, agreeing what to evaluate in samples, and confirming production conditions and public-facing wording. What it adds is the legal procedure attached to each of those points.

Key points

What this article covers, and what it does not

The scope is cosmetics manufactured in Korea and distributed in the Korean market. The Act and Enforcement Rule quoted here were checked against the current text on the Korean Law Information Center on 19 October 2026. This is not legal advice on a specific matter and it does not replace an authoritative interpretation by the competent authority.

What it does not cover is numbers. Minimum order quantity, unit price and lead time depend on product type, container, quantity and production schedule, so they appear here only as matters for condition-based discussion. No EVAS testing record, certification or export volume is offered as evidence. Importing and distributing a finished product, and customized cosmetics retail, follow different requirements and have to be looked at separately.

The whole sequence, one line at a time

Each stage is explained below. The sequence lists statutory procedure and practical work side by side, and not every item applies to every product.

Stage 0: the first thing decided is not the product but who the responsible distributing business is

Article 3(1) of the Cosmetics Act requires anyone who intends to run a cosmetics manufacturing business or a cosmetics responsible distributing business to register with the Minister of Food and Drug Safety, and states that the same applies when changing important registered matters prescribed by Ordinance of the Prime Minister. Article 3(3) requires an applicant for responsible distributing business registration to meet the standards for quality control and post-distribution safety control, and to appoint a responsible distribution manager who can manage them.

This comes first because everything downstream moves when the entity named on the product changes. The trade name and address on the label change, the premise for the functional-cosmetics reporting route changes, and the party carrying the quality-testing and reporting duties changes.

Changes also have a deadline. Article 5(1) of the Enforcement Rule lists a change of the business operator or representative, a change of trade name, a change of premises, a change of manufacturing or distribution type, and a change of the responsible distribution manager as grounds for change registration. Article 5(2) requires the application to be filed with the head of the competent regional office within 30 days of the event, or 90 days where the address changed because of an administrative district reorganization. Replacing the responsible distribution manager is not only an internal personnel matter; it is a change to a registered item. Article 5(7) of the Act requires the responsible distribution manager and others to receive training on cosmetics safety assurance and quality control every year.

The registration procedure is set out in cosmetics business registration in Korea, and the duties that follow registration in what a brand owner is responsible for. Which route fits — receiving finished products or developing your own brand — is covered in finished-product sourcing and own-brand development.

Stage 1: fix the product goals on a single page

What is being decided here is not the texture but the route. Who the customer is, which channel it sells in, what volume it comes in, and what efficacy wording it will carry have to be settled before the next stage's questions make sense. Fields you have not decided are better written as open questions than left blank. A blank field invites the next person to assume an answer; a question shows by when the answer is needed.

Which fields determine the schedule and the procedure is covered in writing a cosmetics product brief. How to choose the number and shape of a first assortment is in building your first K-beauty assortment, and what has to be held constant when comparing quotations is in comparing cosmetics quotations.

Stage 2: the split between a general and a functional cosmetic comes early

Article 4(1) of the Cosmetics Act requires a cosmetics manufacturer, a cosmetics responsible distributing business, or a university or research institute prescribed by Ordinance of the Prime Minister that intends to sell a product as a functional cosmetic to undergo review by the Minister of Food and Drug Safety on safety and efficacy for each item, or to submit a report. It then states that the same applies when changing a submitted report or a reviewed matter. That single sentence is why a functional product has to close its formula earlier: changing a matter that was reviewed or reported reopens the procedure.

If you go through review, Article 9(1) of the Enforcement Rule requires five sets of documents to be attached to the review application for each item: material on the origin and development history, material on safety, material on efficacy or function, supporting material for the sun protection factor and UVA protection grade where applicable, and material on the specifications and test methods. The fifth item is written as material on specifications and test methods, with "including samples" in parentheses, so this is not a paper-only procedure. The proviso to the same paragraph allows the first four to be omitted for items whose efficacy-bearing ingredients and content have been published by the Minister, and allows the fifth to be omitted for items whose specifications and test methods have been published.

The reporting route instead of review is in Article 10(1) of the Enforcement Rule. Item 1 covers a functional cosmetic whose efficacy-bearing ingredient type and content, efficacy and effect, directions and dosage, and specifications and test methods are the same as an item published by the Minister. Item 2 covers a product identical in the listed respects to a functional cosmetic already reviewed, but a condition on the party is written into the parentheses: where the manufacturer is the same it applies only where that manufacturer designed, developed and produced the product, and otherwise it applies only where the responsible distributing business is the same, or where the research institute that obtained the review is the same. Another company's existing review result cannot be used as the basis for reporting your product.

To change something after review, Article 9(3) of the Enforcement Rule requires a change-review application with the previously issued functional cosmetics review result notice attached, except where that notice was issued as an electronic document, together with documents proving the reason for the change.

How far efficacy wording itself can go is covered in hair-loss functional claims and SPF and PA labeling. The difference between starting from an existing base and developing a new formula is in base formula versus custom formulation.

Stage 3: narrow ingredient candidates down to what the standards allow

Ingredients at the planning stage are candidates. Their actual use and concentrations are determined after reviewing the formula, the sensory experience, ingredient supply information and the target product conditions. What has to be filtered first is not preference but the standard.

Article 8(1) of the Cosmetics Act requires the Minister of Food and Drug Safety to designate and publish ingredients that may not be used in manufacturing cosmetics. Article 8(2) requires the Minister to designate and publish usage standards for ingredients that need particular restriction, such as preservatives, colorants and UV filters, and states that preservatives, colorants and UV filters other than those whose usage standards have been designated and published may not be used. Preservative systems and colorants are therefore a list question, not a matter of formulation taste.

Article 8(5) requires the safety of the published usage standards to be reviewed periodically, and allows those standards to be changed as a result. The standard is a maintained list rather than a fixed constant, so even reproducing an old formula calls for a fresh check against the current standard. Article 8(6) allows manufacturers, responsible distributing businesses, universities and research institutes to apply for the release or amendment of a designated ingredient, or for usage standards to be set for an ingredient that has none.

What to check when choosing ingredients is in choosing cosmetic ingredients in Korea, and the documents to collect from suppliers are in raw material documentation. If you intend to use natural or organic wording, check the conditions in natural and organic certification first.

Stage 4: agree what the samples are meant to compare

Once the development direction is organized, agree on what to compare through samples. Gather feedback on sensory experience, fragrance and the container's user experience, then prioritize adjustments. The scope of sample provision, costs and schedule are confirmed according to the project conditions.

What is easy to miss at this stage is that choosing a formula creates a record-keeping duty by itself. Article 12, item 11 of the Enforcement Rule requires that, for products containing 0.5 percent or more of retinol and its derivatives, ascorbic acid and its derivatives, tocopherol, peroxide compounds or enzymes, the stability test data for that item be kept for one year from the expiry date of the last manufactured product. The moment the ingredient and its level are decided, the documents you will be holding years later are decided with it.

How to write sample feedback and when to lock the formula is covered in formulation sample feedback. The basis for setting a use-by date or a period after opening is in shelf life and period after opening.

Stage 5: the container closes at the same time as the formula

A container is not something settled once the design is finished; it is validated together with the formula. Compatibility between the content and the container has to be checked by actually filling it, and depending on the result either the formula or the container changes. If the container needs a mould, this decision creates the longest tail in the schedule.

Deciding the volume is also deciding the label. The proviso to Article 10(1) of the Cosmetics Act allows packaging prescribed by Ordinance of the Prime Minister, such as packaging for a small content volume, to carry only the name of the cosmetic, the trade name of the responsible distributing business and the customized cosmetics seller, the price, the lot number, and the use-by date or period after opening, and requires the manufacturing date to be shown alongside where a period after opening is used. Article 10(2) requires the primary container of a product that has secondary packaging to carry the name of the cosmetic, the trade name of the business operator, the lot number, and the use-by date or period after opening, with an exception for products prescribed by Ordinance of the Prime Minister such as solid soap, where the consumer removes the primary packaging before use.

What to check for content and container compatibility is in packaging compatibility, and packaging-related environmental rules are in cosmetic packaging environmental rules. The reduced labeling scope for small packaging is covered in more detail in small packaging labeling.

Stage 6: close labeling and advertising copy before printing is ordered

Article 10(1) of the Cosmetics Act lists what the outer packaging has to carry: the name of the cosmetic, the trade name and address of the business operator, all ingredients used in manufacturing the cosmetic, the volume or weight of the contents, the lot number, the use-by date or period after opening, the price, the word or the official design indicating a functional cosmetic where applicable, precautions for use, and other matters prescribed by Ordinance of the Prime Minister. The ingredient listing carries a proviso excluding ingredients prescribed by Ordinance of the Prime Minister, such as harmless trace ingredients.

The Stage 2 decision reappears here. If you are going the functional route, that fact has to appear on the packaging, so ordering printing before the review or report is complete creates a cost you cannot recover. If you are not, the range of wording available on the packaging and the product detail page is different.

The limits on the wording itself come from Article 13 of the Cosmetics Act on prohibited labeling and advertising. Precaution statements are covered in precautions for use on the label, the evidence behind efficacy wording in substantiating advertising claims, and the information an online listing has to display in online listing information. If you plan to work with seeded reviews or influencers, read sponsored review disclosure before launch rather than after it.

Stage 7: put the pre-production documents in place

Production starts in documents before it starts on a machine. Article 11(1) of the Enforcement Rule lists what a cosmetics manufacturer must observe, including following the guidance, supervision and requests of the responsible distributing business under the quality control standards; preparing and keeping the manufacturing control standard document, the product standard document, manufacturing control records and quality control records; and carrying out the necessary testing, inspection or verification from the receipt of raw materials and packaging materials through to the release of finished products. Where manufacturing or quality testing is outsourced, the manufacturer has to supervise the contractor closely and obtain and maintain the manufacturing and quality control records.

Article 12 of the Enforcement Rule sets out what the responsible distributing business must observe. Observing the quality control standards in Annex 1 and the post-distribution safety control standards in Annex 2 comes first, followed by keeping the product standard document and quality control records received from the manufacturer. Item 10 requires that, where new data or information that may directly affect public health, including adverse reaction cases, becomes known, it be reported as published by the Minister and the necessary safety measures be put in place.

The manufacturer's duty to hand over quality-related material has a proviso. Article 11(1), item 6 allows it to be withheld where the manufacturer and the responsible distributing business are the same, and where the manufacturer designed, developed and produced the product and the material is a trade secret under a mutual contract, to the extent that quality and safety control are not affected. How far formula information travels is therefore settled in the contract, which is a condition worth confirming before development begins.

Manufacturing quality systems are covered in good manufacturing practice for cosmetics, and rights in the formula in who owns the cosmetic formula.

Stage 8: quality testing per manufacturing lot, then release

Article 12, item 5 of the Enforcement Rule requires quality testing to be carried out thoroughly for each manufacturing lot before distribution. The proviso adds that testing may be omitted where the manufacturer and the responsible distributing business are the same, or where quality testing has been outsourced to an institution falling under Article 6(2), item 2 of the same Rule and per-lot quality test results exist. It describes conditions under which testing may be omitted, not a route to distributing without testing.

This is also where the quantity decision becomes a real cost. Production and testing are bound to the lot, so how much you make at once determines not only the unit price but also the unit of testing and record-keeping. Release testing is covered in batch release testing, and the considerations around small runs in MOQ and small-batch planning.

Stage 9: the pre-distribution report and the annual report

Article 5(5) of the Cosmetics Act requires the responsible distributing business to report production or import results and the list of raw materials used in manufacturing to the Minister of Food and Drug Safety, and states that the report on the raw material list has to be made before the cosmetic is distributed and sold.

Article 13(1) of the Enforcement Rule requires last year's production or import results to be reported by the end of February each year through a cosmetics industry association such as the Korea Cosmetic Association. Article 13(2) requires the list of raw materials used in manufacturing to be reported before distribution and sale, and states that the same applies where a reported list has changed. Changing the formula means reporting again. Article 13(3) provides an exemption for responsible distributing businesses that import under a standard customs clearance report made as an electronic trade document.

The forms, the receiving association and the deadlines are covered in production volume and ingredient list reporting. If you plan to export without distributing domestically, the conditions in export-only cosmetics and country of origin labeling apply instead.

One point moves earlier from 2028

Article 4-2 of the Cosmetics Act, newly inserted on 30 December 2025, establishes cosmetics safety assessment. A cosmetics responsible distributing business must, before a cosmetic is distributed and sold, prepare product-specific material capable of demonstrating that the cosmetic is safe, have it reviewed by a safety assessor with the educational background or experience in cosmetics safety prescribed by Ordinance of the Prime Minister, and then keep it. Responsible distributing businesses engaged in brokering or delivering for import agency transactions, and those prescribed by Ordinance of the Prime Minister in consideration of revenue scale, are excluded.

The effective dates are split by business and product. For a business with annual production or import value of one billion won or more, or one that registered as a responsible distributing business after promulgation: 1 January 2028 where it intends to sell a product reviewed or reported as a functional cosmetic after promulgation, 1 January 2030 where it intends to sell a product manufactured or imported and launched for the first time after promulgation, and 1 January 2031 otherwise. For a business with annual production or import value below one billion won, the date is 1 January 2031. The same amendment moved the former Article 4-2 to Article 4-3, so check the article number when citing the management of cosmetics for infants and children.

It is not a current obligation, but it already affects the order of work, because it adds one more task that has to be finished before distribution and sale. Product-specific safety material for infant and child products is covered, on the current basis, in safety data for infant and child cosmetics.

The five points that cost the most to reverse

These five are where decisions deferred in earlier stages collect. They are also the items most easily pushed back when the schedule is tight.

Common reasons a schedule slips

The following is a summary of patterns our editorial team has repeatedly seen in consultations. It is an observation-based hypothesis, not a statistic.

First, starting samples while key fields are still blank. Samples arrive quickly, but when the blank fields are answered later, the formula or the container moves again.

Second, changing label copy just before printing. Late copy pushes container delivery and the production schedule at the same time.

Third, adding a functional claim in the middle of development. The point at which the formula has to be closed moves earlier, so sample rounds that were already finished may reopen.

Fourth, adding sales channels and, with them, additional labeling and documents. Channel requirements exist separately from legal duties, so deciding where the product will be listed first reduces duplicated work.

Frequently asked questions

Question: we have no company entity yet and no responsible distributing business registration. Can we still start a consultation? Answer: yes. Until registration is complete, though, the party behind the review or report and the label copy is not fixed, so noting when registration is expected to finish keeps the schedule realistic.

Question: can we switch to a functional cosmetic after seeing samples? Answer: you can, at a cost. Article 4(1) of the Cosmetics Act applies the same procedure to changing a reviewed or reported matter, and going functional moves the formula-closing point earlier. If it is a possibility, mark it at Stage 1.

Question: does sourcing a finished branded product shorten this sequence? Answer: development and sampling shrink, but the duties of the party distributing the product do not disappear. On any route, domestic distribution brings a responsible distributing business, labeling, quality testing and reporting with it. The routes are compared in building your first K-beauty assortment.

Question: how long does the whole thing take, and what does it cost? Answer: it depends on product type, functional status, container specification, quantity and production schedule, so it is handled only as a condition-based discussion. The purpose of this article is not to promise a duration but to make visible which decision opens which piece of work.

How much do you need to have decided before writing to us?

If a formulation interests you, pick a direction in the formulation library and send us the user experience you want, your reference products and your preferred schedule through the consultation form. If the details are not settled yet, you can start with the target customer and the purpose of the product, plus the two items from Stage 0 and Stage 2: who the responsible distributing business will be, and whether you plan to use functional wording. Once those two are decided, the order of the remaining questions is decided too.

A published development proposal does not itself mean a production-confirmed formula or a product with completed efficacy testing. Planning copy does not automatically become the product's confirmed description. Test figures and specific functional statements are prepared after checking the actual evidence.

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