Product Compliance And Certification For Hair Dye In South Korea

Scope and evidence must be confirmed before any paid tests or filings.

A Korean hair-colour launch is not decided by a generic “cosmetics certificate”. The first question is whether the actual use produces only temporary colour or changes/strips hair colour more durably. For non-temporary colour change, including bleaching and dye removal, Korean rules place the product in functional cosmetics; temporary colour products are excluded from that particular functional category. Classification must be based on the formula, mode of action, instructions and claims—not the trade name.

Use the route map below before purchasing tests, importing kits or printing Korean packs. A functional-cosmetic evaluation and a report are alternative legal pathways whose availability depends on the applicable product criteria; they are not two universal approvals.

Classify the colour effect before choosing a filing

This is a decision aid, not an MFDS classification ruling. A temporary dye is not exempt from general cosmetic ingredient, business, safety or labelling controls.

For the classification record, compare the actual colour effect after one application and repeated use, the wash-out instructions, and any claim of durable coverage. Keep representative hair-strand observations and the final advertising copy. No universal number of washes is asserted as a statutory dividing line; if permanence is unclear, obtain a product-specific Korean regulatory assessment before treating the product as ordinary cosmetics.

Hair-dye route matrix: six decisions, not one certificate

Product scenario	Decisive fact	Likely regulatory layer	Proof to obtain before proceeding
Wash-out hair chalk or temporary spray	Does the colour wash away without non-temporary alteration?	Usually ordinary cosmetics for this colouring function; no automatic hair-dye functional filing.	Directions, wear/wash-out substantiation, ingredient screen and Korean labelling.
Two-part oxidative grey-cover dye	Precursor and developer mixed before application; lasting result?	Functional cosmetics: determine whether MFDS review or eligible report applies, plus cosmetics business/import rules.	Each part’s quantitative formula, mixing ratio, final-use exposure, shade and product standard.
Direct-dye product marketed as long-lasting	Is the result genuinely non-temporary despite no developer?	Functional category may apply; “developer-free” is not a statutory exemption.	Colour-persistence evidence, intended use, full dye identity and usage conditions.
Bleach or colour remover	Does it remove or lighten existing hair pigment?	Explicitly included in the functional hair-colour category.	Oxidiser/alkaliser data, blend instructions, compatibility and quality controls.
Colour-depositing shampoo claiming gradual grey reversal	Temporary surface tint or persistent change? Is biological reversal promised?	Classify the actual colour effect; separately assess whether “reverses greying” is misleading or non-cosmetic.	Repeated-use data, proof of claim wording, formula and wash-out characteristics.
Dye also advertised to treat alopecia	Is a hair-loss benefit separately claimed?	Possible additional functional-cosmetic claim assessment; disease-treatment claims may fall outside cosmetics.	Separate hair-loss substantiation and formal claim/classification review.

Screen the colour chemistry and the complete kit

The Cosmetics Act Article 8 and MFDS Regulation on Safety Standards for Cosmetics govern banned and restricted substances. The 18 March 2026 amendment expressly revised hair-dye-only ingredient entries in its annexes. Never clear a shade solely because a colourant is accepted in the EU, United States or Japan: check the current Korean annex by substance, function, concentration and use condition.

The March 2026 safety notice reorganised hair-dye-related annex entries; the separate MFDS functional-cosmetics review amendment of 16 December 2025 also records removals of certain dye substances and changed limits for others. These are not interchangeable rules: assess both the currently permitted substance/use concentration and the functional review-or-report criteria for the exact formula, without carrying forward an old approved-ingredient list.

Identify all oxidative precursors, couplers, direct dyes and auxiliary colourants by unambiguous chemical identity; check whether each is permitted for the proposed hair-dye use.
Assess developer and base separately and as mixed: oxidising agents, alkalinity, contact time, scalp exposure and the marketed ratio matter.
Compare each shade and each strength; switching dye loading or developer strength can invalidate an earlier formulation assessment.
Check impurities, microbial/quality specifications, packaging compatibility, shelf life and the relevant MFDS test methods; do not assume that a foreign test report is automatically sufficient.
Map possible sensitisation/irritation and the exact precautions applicable to the formulation; do not invent a single universal patch-test interval for every dye.

Build a traceable, product-specific evidence file

Treat the Korean responsible seller (화장품책임판매업자), manufacturer and overseas brand as distinct roles. MFDS describes responsible-selling business registration for sellers/distributors of manufactured or imported cosmetics, with a designated manager; functional evaluation/report obligations depend on the category and applicant eligibility. Ownership of filing and quality decisions must be agreed before shipment.

File component	Primary information owner	Decision it must support
Formula map by shade and kit component	Formulator / foreign manufacturer	Ingredient legality, use concentration, mixing and category.
Finished-product and batch QC; stability/compatibility	Manufacturer + Korean responsible seller	Saleable safety/quality of the supplied configuration and traceability.
Functional review or report eligibility memo and submission proof	Eligible applicant / Korean regulatory lead	Whether review is required, report is available, and the actual product/claim scope.
Import/distribution responsibility and product origin records	Korean responsible seller / importer	Business registration, import controls, lot release and recall ownership.
Korean label, instructions, warnings and claim dossier	Brand + Korean responsible seller	Article 10 disclosures, directions, precautions and advertising accuracy.

For imported hair-dye kits, the MFDS functional review/report is not the customs step. The Korea Pharmaceutical Traders Association (KPTA) states that a registered cosmetics responsible seller submits a Standard Import Declaration (표준통관예정보고) electronically before customs clearance for each import. After clearance, conduct quality inspection by manufacturing batch and release only conforming stock. Do not treat the KPTA declaration as a substitute for the functional-cosmetic route.

Before sending a two-part or multi-shade product, reconcile its Korean import file with KPTA requirements: responsible-seller registration, manufacturing and free-sale certificates, relevant functional-cosmetic documents, and conditional animal-origin/BSE documents. The manufacturer certificate should identify the actual product and ingredients (including Colour Index identifiers where applicable); confirm the required originals/form and link each batch to the declared kit. These are import-document gates, not a universal list of laboratory tests.

Turn the legal route into Korean packaging and claims

Korean packaging is a downstream result of the approved/reported product scope and final formula. Under Cosmetics Act Article 10 and its rules, applicable package particulars include product identity, business name/address, ingredient disclosure, quantity, batch number, expiry or period after opening, precautions and—where applicable—functional-cosmetic designation and supported uses. Requirements and allowable omissions vary with packaging; verify the final retail configuration.

The label review must also account for the retail price under Cosmetics Act Articles 10–11. Article 11 assigns the displayed selling price to the person directly selling to consumers; this does not itself mean the overseas factory must preprint every retailer’s price. When a period-after-opening is stated, Article 10 also requires the manufacturing date alongside it. Check the applicable small-pack exception and the Korean legibility rule in Article 12 before approving artwork.

Keep “functional cosmetics” wording only where legally applicable; the label must match the actual reviewed/reported indications and directions.
For two-part kits, reconcile component identities, mixing ratio, application time and instructions with the evidence and regulated use conditions.
Prepare clear Korean-language mandatory information and use-specific cautions; translating an EU pack verbatim does not prove compliance.
Cross-check online listings, grey-coverage claims, before/after images and promotional translations against supported cosmetic claims; avoid implying treatment of disease.
Do a final artwork/QR/barcode and package-size check against the legally applicable particulars; a small-pack exception is not a blanket waiver.

For precautions, check the current MFDS Notice 2026-56 (effective 5 August 2026) governing category- and ingredient-specific warning text and fragrance-allergen disclosure. In particular, check the applicable wording for hair dyes, bleaching products and colour shampoos instead of copying foreign warnings; the 2026 notice contains applicability and transitional provisions. Do not assume one standard allergy/patch-test sentence fits every formula.

Launch gates, owners and change control

Freeze product facts. Record intended effect, permanence, claims, all parts, shades, mix ratio and seller/importer.
Resolve route. Confirm ordinary-vs-functional classification; for functional products decide review or qualified report, never assume a certificate.
Close formula gaps. Compare all components and concentrations with current MFDS ingredient controls; commission justified evidence/testing.
Close Korean operator and filing gates. Verify responsible-selling registration/quality ownership, applicable functional outcome and import requirements before release.
Release the exact SKU. Approve Korean label and advertising, batch records and traceability; control shade/formula/claim/supplier changes afterwards.

A new shade, different oxidiser, altered mixing instruction, stronger persistence claim, imported pack format or new responsible seller is a recheck trigger. Article 4 expressly addresses changes to reviewed or reported functional-cosmetic particulars; determine whether a new review/report or other update is necessary before the revised SKU ships.

For general Korean cosmetics obligations beyond hair colour see the Korean cosmetics overview.

For general skin-care scope see the skincare route.

Do not transplant the Japanese hair-colour route; compare separately with the Japan hair-dye route.

Hair-dye questions that change the route

Is an MFDS certificate compulsory for every Korean hair dye?

No single certificate covers all hair-colour products. Non-temporary dyes and bleaching sit within functional cosmetics, where Article 4 provides review or an eligible report. Temporary colour still requires the general cosmetics controls.

Can an imported EU-approved oxidative dye be sold without a Korean ingredient check?

No. Foreign compliance does not establish compliance with Korean restrictions, especially the hair-dye entries revised in March 2026. Screen every component and its concentration against the current Korean rules.

Does a dye become ordinary cosmetics just because it has no peroxide?

Not necessarily. Classification turns on the colour-changing function and whether the effect is temporary, not only on the presence of a developer. Obtain performance and use evidence.

May one submission automatically cover every shade in a box-colour range?

Do not assume so. Prepare shade-by-shade formulations and assess whether the relevant review/report rules allow the proposed product grouping; verify the actual recognised scope.

Can a colour shampoo promise to restore natural pigment or treat hair loss?

The visual tint and any biological or hair-loss promise are different claim questions. Verify persistence and claim substantiation; do not treat a hair-colour filing as permission for treatment claims.

Korean laws, MFDS rules and import-procedure sources

Review the consolidated instruments and regulator explanations in Korean for operative detail; English MFDS pages are explanatory and may lag later amendments.