Japan Cosmetics Regulation Under the Pharmaceutical Affairs Act

Japan regulates cosmetics under the Pharmaceutical and Medical Devices Act (PMD Act), commonly known by its Japanese abbreviation Yakujiho. This law distinguishes between two product categories relevant to Taiwan cosmetics exporters: cosmetics (keshouhin) and quasi-drugs (iyaku-bugaihin). Ordinary cosmetics are defined as products intended to clean, beautify, promote attractiveness, alter appearance, or maintain skin and hair in healthy condition through gentle action. Quasi-drugs are products with mild pharmacological effects such as medicated soaps, deodorants, hair dyes, sunscreens with SPF claims, and anti-acne treatments.

The classification determines the regulatory pathway. Ordinary cosmetics require only a product notification (todokede) filed with the Pharmaceuticals and Medical Devices Agency (PMDA) before market entry. Quasi-drugs require pre-market approval (shonin) from PMDA, which involves efficacy and safety evaluation with review timelines of 6 to 12 months. The approval fee for quasi-drugs is approximately JPY 85,000 to JPY 390,000 per product depending on whether the formulation uses previously approved ingredients or novel ingredients.

For Taiwan cosmetics brands, the most common classification challenge involves functional claims. A moisturizer marketed as simply moisturizing is an ordinary cosmetic. The same moisturizer claiming to prevent dryness-related skin roughness or reduce age spots may cross into quasi-drug territory. Japan's Ministry of Health, Labour and Welfare (MHLW) publishes a list of 56 permitted efficacy claims for ordinary cosmetics. Claims beyond this list trigger quasi-drug classification and the associated pre-market approval requirement.

Taiwan brands should conduct a product-by-product classification review before entering the Japan market. Submit a product profile -- including ingredient list, concentration levels, and all marketing claims in English and Japanese -- to a licensed Japanese regulatory consultant for classification assessment. Consultants typically charge JPY 50,000 to JPY 150,000 per product for classification review. Misclassification results in enforcement action by prefectural pharmaceutical affairs offices, including product recall orders and administrative penalties.

The MHLW periodically updates cosmetics regulations through ministerial ordinances. The 2024 amendment expanded the positive list for UV filters and revised concentration limits for certain preservatives. Taiwan exporters should subscribe to PMDA regulatory update notifications and review the Japan Cosmetic Industry Association (JCIA) regulatory bulletins to stay current with classification criteria changes.

For ordinary cosmetics, the notification process is straightforward but requires a Marketing Authorization Holder (MAH) license. Only entities holding a valid MAH license issued by a Japanese prefectural government can file cosmetics notifications with PMDA. Taiwan companies cannot directly obtain MAH licenses -- they must partner with a Japanese MAH holder who will serve as the importer of record. MAH partners charge JPY 300,000 to JPY 800,000 per year as a base retainer plus per-product notification fees of JPY 30,000 to JPY 80,000.

The notification (todokede) is filed electronically through the PMDA FD Application System. Required information includes the product name (in Japanese), ingredient list using INCI nomenclature cross-referenced to the Japanese Cosmetic Ingredient Codex (JCIC), manufacturing facility details, storage conditions, and proposed packaging. PMDA processes notifications within 10 to 14 business days. Once notification is accepted, the product can be legally imported and sold in Japan. No pre-market testing or clinical trials are required for ordinary cosmetics.

Quasi-drug approval follows a more rigorous pathway. The MAH submits a shonin application through PMDA including the full product formulation, manufacturing process documentation, stability study data (typically 3-year long-term and 6-month accelerated), efficacy evidence for each claimed function, and safety test data (patch tests, phototoxicity, sensitization). PMDA review timelines range from 6 months for products using well-established quasi-drug ingredients to 18 months or more for novel ingredient combinations.

Taiwan brands planning quasi-drug applications should budget JPY 2 million to JPY 5 million per product for the complete approval process including regulatory consulting, required testing, PMDA fees, and MAH partner charges. Stability studies alone cost JPY 500,000 to JPY 1.5 million per product. The most cost-effective strategy is to launch ordinary cosmetics first using claims within the 56 permitted categories, build brand recognition in Japan, and pursue quasi-drug approvals for hero products once the market justifies the investment.

Post-approval changes to quasi-drug formulations require partial change approval (ichibu-henkou shonin) from PMDA. Changes to active ingredient concentration, adding or removing ingredients, or modifying the manufacturing process all trigger this requirement. Partial change approvals take 3 to 6 months and cost JPY 50,000 to JPY 200,000. Taiwan manufacturers should finalize formulations completely before initiating the quasi-drug approval process to avoid costly post-approval amendments.

Japan's cosmetic ingredient regulation uses a dual-list system. The negative list (Prohibited Ingredients List) contains substances banned entirely from cosmetic use -- approximately 30 ingredients as of 2025 including mercury compounds, formaldehyde (as an intentionally added ingredient), and certain azo dyes. The restricted list specifies ingredients permitted only within defined concentration limits, covering preservatives, UV filters, coal tar dyes, and certain surfactants. Taiwan manufacturers must verify every ingredient in their formulations against both lists before export.

The JCIC (Japanese Cosmetic Ingredient Codex) serves as the reference standard for ingredient naming and specification. All ingredients in cosmetics sold in Japan must be listed on the product label using JCIC nomenclature -- not INCI names, although most JCIC names correspond directly to INCI names. The JCIA maintains the JCIC database with approximately 14,000 listed ingredients. Ingredients not in the JCIC must be registered through the JCIA new ingredient notification process before they can be used in Japan market cosmetics.

Preservative use is tightly controlled. Japan permits 33 preservative substances in cosmetics at specified maximum concentrations. Methylparaben is permitted at 1.0% maximum, phenoxyethanol at 1.0%, and benzalkonium chloride at 0.05%. Taiwan formulations using preservatives at concentrations near or above Japan limits must be reformulated before export. Certificate of Analysis documents from the Taiwan manufacturer must confirm preservative concentrations comply with Japan limits for every production batch.

UV filter regulations differ significantly between Taiwan and Japan. Japan permits 32 UV filter substances in cosmetics with specific maximum concentration limits. Products containing UV filters may be classified as either ordinary cosmetics or quasi-drugs depending on whether they make SPF or PA claims. A product containing titanium dioxide as a physical UV blocker without SPF claims remains an ordinary cosmetic. The same product claiming SPF 50+ PA++++ becomes a quasi-drug requiring pre-market approval.

Color additives (tar dyes) in Japan cosmetics must be selected from the approved list of approximately 83 coal tar colors and their lakes. Each approved color has a designated Japanese color index number and permitted use category -- some are approved for all cosmetics, while others are restricted to rinse-off products or may not be used in lip products or eye-area products. Taiwan cosmetics using US-approved FD&C colors should verify that the specific color and its intended application category are also approved under Japan regulations.

Japan cosmetics labeling is governed by the Household Goods Quality Labeling Act and MHLW ministerial ordinances. All label text must be in Japanese. Required label elements include the product type designation (e.g., face cream, shampoo), full ingredient list in descending concentration order using JCIC nomenclature, net content volume or weight, name and address of the MAH (the Japanese importer), country of origin, lot number, and period after opening (PAO) or expiration date if the product has a shelf life under 3 years.

The ingredient listing requirement uses a full-disclosure system. Every ingredient must be listed regardless of concentration -- Japan does not have a 1% threshold below which ingredients can be listed in any order as some other markets allow. Fragrances may be listed collectively as "perfume" without disclosing individual fragrance components. Colorants may be listed with a collective "+/-" notation for product lines using different shade options. All other ingredients must be individually named.

Japan requires specific cautionary statements for products containing certain ingredients. Products with hair dye ingredients must include allergy patch test instructions. Products containing AHA (alpha-hydroxy acid) at concentrations above 3.5% must carry a sun sensitivity warning. Aerosol products must include safety warnings about inhalation and flammability. These cautionary statements must appear in a minimum font size of 6 points and be clearly visible without opening or removing outer packaging.

Country of origin labeling is mandatory under the Household Goods Quality Labeling Act. Products manufactured in Taiwan must display "Made in Taiwan" in Japanese characters on the label. The country of origin is determined by where substantial transformation occurs. If a Taiwan company ships bulk product to Japan for filling and packaging, the country of origin may be designated as Japan if the filling and packaging constitute substantial transformation under customs classification rules.

E-commerce listings on Japanese platforms (Amazon Japan, Rakuten, Yahoo Shopping Japan) must include the same mandatory label information as physical product labels. MHLW considers online product pages as advertising that must comply with both labeling regulations and the Cosmetics Advertising Guidelines. Claims in product titles, bullet points, and descriptions must stay within the 56 permitted efficacy categories for ordinary cosmetics. Before-and-after photos implying therapeutic effects are prohibited for ordinary cosmetics.

Importing cosmetics into Japan requires customs clearance through designated ports with pharmaceutical inspection capabilities -- primarily Tokyo (Narita), Osaka (Kansai), and Yokohama. The MAH files an import notification (yunyu todokede) with the regional Bureau of Health and Welfare before each shipment. Required documentation includes the PMDA notification acceptance number, Certificate of Analysis for each product batch, Certificate of Free Sale from the Taiwan FDA, packing list, and commercial invoice.

Customs inspection of cosmetic imports involves document review and may include physical sampling for laboratory analysis. The National Institute of Health Sciences (NIHS) conducts random sampling tests on imported cosmetics to verify ingredient compliance, microbial limits, and heavy metal levels. Japan's microbial limits for cosmetics are strict: total aerobic count must be below 100 CFU/g for eye-area products and below 1,000 CFU/g for other products. Heavy metal limits include lead below 20 ppm and arsenic below 2 ppm.

Selecting the right MAH partner is critical for Japan market success. Evaluate MAH candidates on regulatory capability (number of current cosmetics notifications held), warehouse and logistics infrastructure, quality management systems, and commercial distribution relationships. Top-tier MAH partners like Transcosmos, Nippon Express Cosmetics Division, and specialized regulatory firms offer end-to-end import-to-distribution services. Mid-tier partners charge lower retainers but may lack distribution network access.

Taiwan brands should negotiate MAH agreements covering clear allocation of regulatory responsibility, product liability insurance requirements (minimum JPY 100 million per occurrence is standard), inventory management terms, defect notification timelines, and termination procedures including PMDA notification transfer rights. Ensure the agreement specifies that PMDA notification registrations remain transferable to a new MAH if the relationship ends -- some MAH contracts contain lock-in clauses that make notification transfer difficult.

Budget for Japan cosmetics market entry: MAH retainer JPY 300,000 to 800,000 per year, per-product notification JPY 30,000 to 80,000, regulatory consulting JPY 50,000 to 150,000 per product, JCIC ingredient verification JPY 20,000 to 50,000 per product, label design and translation JPY 80,000 to 200,000 per SKU, and initial inventory JPY 500,000 to 2 million. A Taiwan brand launching 5 SKUs in Japan should budget JPY 2 million to JPY 5 million for Year 1 market entry costs.