A detailed, step-by-step roadmap for cosmetics OEM manufacturing in Japan -- covering skincare, makeup, haircare, quasi-drugs (medicated cosmetics), and more. This complete guide walks you through all 4 phases, from compliance with Japan's Pharmaceutical and Medical Device Act (PMD Act) and GMP-based quality management, to formulation development, stability testing, and full ingredient labeling.
Phase 1
Build the foundation for your cosmetics OEM project in Japan -- from defining your product concept to understanding regulatory requirements under the PMD Act.
The first step in cosmetics OEM manufacturing in Japan is to clearly define which cosmetics category you want to produce. Cosmetics in Japan are broadly classified into the following categories:
A particularly important distinction is between "cosmetics" and "quasi-drugs" (medicated cosmetics) under Japanese law. Cosmetics require only a notification and can be brought to market relatively quickly, but the efficacy claims you can make are limited. Quasi-drugs, on the other hand, require government approval, which takes 6 months to over a year, but they allow you to incorporate active ingredients and make claims such as "whitening," "acne prevention," and "hair growth promotion." Choose the appropriate classification based on your product differentiation strategy and timeline.
To develop competitive products, it is essential to stay current with the latest trends in the cosmetics market. Here are the key trends to watch:
With the rapid growth of D2C (Direct to Consumer) brands, the dominant strategy is to start with a small lot, then scale up through SNS (Instagram/TikTok) marketing. Designing your concept around market trends is key to the success of your OEM manufacturing project.
In cosmetics OEM manufacturing, costs vary significantly depending on the category, lot size, and container specifications. Here are rough cost estimates by category for an initial production run:
In addition to the above, expect separate costs for formulation development (¥100,000–¥300,000 / approx. $670–$2,000) and stability testing (¥50,000–¥150,000 / approx. $330–$1,000). In cosmetics OEM, containers and packaging typically account for 30–40% of total costs, making them a critical area for cost management. Using stock (off-the-shelf) containers can significantly reduce initial costs. Custom container molds cost an additional ¥300,000–¥1,000,000 (approx. $2,000–$6,700), so consider stock containers for your first production run.
The most important regulation governing cosmetics OEM manufacturing in Japan is the Pharmaceutical and Medical Device Act (PMD Act) -- formally known as the "Act on Securing Quality, Efficacy, and Safety of Products Including Pharmaceuticals and Medical Devices."
Under Article 2, Paragraph 3 of the PMD Act, cosmetics are defined as products "intended to be applied to the human body by rubbing, spraying, or similar methods for the purpose of cleaning, beautifying, increasing attractiveness, altering appearance, or maintaining the health of skin or hair."
In OEM manufacturing, you need to decide whether the brand owner (you) will obtain the Marketing Authorization, or whether the OEM manufacturer will serve as the marketing authorization holder. The efficacy claims allowed in advertising are limited to 56 specific items defined by law. Expressions such as "whitening," "anti-aging," and "wrinkles disappear" cannot be used for cosmetics (they are only permitted for quasi-drugs that have obtained approval). Violations of the PMD Act can result in administrative orders or criminal penalties, so accurate understanding from the earliest stage is essential.
Phase 1 Checklist
Phase 2
Find the best cosmetics OEM partner in Japan based on GMP certification, formulation development capabilities, and regulatory compliance support.
There are several ways to find cosmetics OEM manufacturers in Japan. Leverage each approach to build your shortlist of candidates.
Compared to food OEM, cosmetics OEM in Japan offers more options for small-lot manufacturers (starting from as few as 100 units). A proven strategy is to start with a small lot to gauge market response, then scale up production if sales are strong.
Here are the key criteria to evaluate when selecting a cosmetics OEM manufacturer in Japan:
If the manufacturer offers ODM (Original Design Manufacturing) services, they can assist from the planning stage onward. If your team lacks formulation expertise, consider working with an ODM-capable manufacturer.
To obtain accurate quotes, it is important to organize and communicate the right information upfront.
The true strength of a cosmetics OEM manufacturer lies in its formulation development capabilities. Even using the same ingredients, differences in blending ratios, emulsification techniques, and stabilization technologies result in vastly different sensory experiences and product quality.
Whenever possible, it is strongly recommended to request actual samples before signing a contract to evaluate formulation capabilities firsthand. Request samples from multiple manufacturers and compare them in terms of sensory feel, texture, and stability.
Phase 2 Checklist
Phase 3
Finalize your product -- from formulation development to safety testing, full ingredient labeling, and package design.
Formulation development is the core process of cosmetics OEM manufacturing. It typically progresses through the following steps:
Key sensory evaluation criteria include absorption feel, penetration sensation, stickiness, moisturizing duration, and post-application skin feel. Prototyping typically requires 5–10 iterations, with repeated refinements until you achieve the desired sensory experience. If possible, it is advisable to conduct a consumer panel test (approximately 10–30 participants) to collect objective evaluation data.
Once the formulation is finalized, scientific testing is conducted to verify product quality and safety.
Parameters measured: Appearance, viscosity, pH, microbial counts, and ingredient content over time
Human testing costs approximately ¥500,000–¥2,000,000 (approx. $3,300–$13,300). Required for claims such as "tested on sensitive skin"
Full ingredient labeling on cosmetics is legally mandated in Japan and must follow precise rules.
Regarding advertising claims, you must stay within the 56 permitted efficacy claims defined by the PMD Act. The following expressions are prohibited for cosmetics:
It is recommended to have advertising claims reviewed by the OEM manufacturer's regulatory affairs staff or an external regulatory consultant. Note that the PMD Act also applies to social media posts and influencer promotions, so caution is needed in all marketing activities.
Containers are a critical element that directly affects product quality preservation, usability, and brand image. Select based on the following criteria:
Artwork submission specifications vary by container manufacturer. Make sure your label layout includes all GMP-required labeling items: product name, full ingredient list, usage precautions, marketing authorization holder name and address, net content, and manufacturing number or lot number.
Phase 3 Checklist
Phase 4
The final phase -- from executing the manufacturing contract and establishing quality control, to logistics setup and brand growth.
When entering a cosmetics OEM manufacturing contract in Japan, be sure to include the following industry-specific items in addition to standard contract manufacturing terms:
Quality control for cosmetics is systematically managed based on GMP (ISO 22716: Guidelines on Good Manufacturing Practices for Cosmetics).
Many cosmetics are sensitive to temperature, humidity, and light, making proper logistics and inventory management directly linked to quality maintenance.
After your initial production run and sales launch, data-driven brand development and strategic product expansion become essential.
In social media marketing, before/after claims can be effective, but caution is required from a PMD Act perspective. A disclaimer stating "individual results may vary" does not provide legal exemption from PMD Act violations.
Phase 4 Checklist
Use the checklists in this guide to manage your progress through each phase of cosmetics OEM manufacturing. From planning and manufacturer selection to formulation development and mass production, OEM JAPAN is here to help you find the right manufacturing partner in Japan.
Find Cosmetics OEM ManufacturersOEM JAPAN allows you to search and compare food and cosmetics OEM manufacturers for free. Many manufacturers offering small lot options are listed.