Korea's Functional Cosmetic Label, Explained: What the Cosmetics Act Defines, How Products Reach the Category, and How It Differs From the US Cosmetic-Drug Line

What the Cosmetics Act says

The English translation of the Cosmetics Act on the Korea Law Translation Center site defines a cosmetic as an item applied to the body to cleanse, beautify, promote attractiveness or brighten the appearance, or to maintain or improve the health of skin and hair, with light effects on the human body. A separate definition covers functional cosmetics, which are products prescribed by ordinance of the Prime Minister. The translation, last amended in December 2018, names groups such as whitening, wrinkles, UV protection and hair color.

The categories have grown since the Act

The detailed list sits in an enforcement rule that has changed over time. A regulatory industry summary from ChemLinked describes eleven efficacy categories, adding examples such as skin barrier restoration and hair removal. That is a secondary source, so check the Ministry of Food and Drug Safety (MFDS) for the current list before relying on it.

How a product gets there

Article 4 of the Act requires manufacturers and distributors to go through an examination, or to submit a report, on safety and effectiveness before marketing a functional cosmetic. ChemLinked describes three tracks:

• Report: for products that match existing standards or previously evaluated formulas, submitted online
• Evaluation: a full dossier for novel formulations, which it says the review institute handles within 60 working days
• Exemption: for example, sunscreens of SPF 10 or lower

Why the label names an ingredient and a number

The report track lets a brand skip submitting its own data when it uses an MFDS-notified active ingredient within the listed concentration. That is why Korean labels often show a specific active at a set level. Our adenosine guide covers the best-known example, a notified wrinkle ingredient with a 0.04 percent figure.

Where the US draws the line

The FDA decides whether a product is a cosmetic or a drug by its intended use, which can be shown by label claims, advertising or the internet. Sunscreens are drugs under US law. A moisturizer or makeup sold with sun protection claims is both a cosmetic and a drug and must meet both sets of rules. So Korea routes some benefit claims through a ministry review, while the US routes the claim itself into drug rules. Our PA rating guide and the bemotrizinol article show how that plays out for sunscreen.

What the rules restrict

Article 13 bars labeling or advertising that could lead consumers to think a cosmetic is a medicine, and it bars presenting a non-functional product as a functional one. ChemLinked adds that some categories must carry a statement that the product is not a medicine for preventing or treating disease. The category is therefore a claim permission, not a treatment status.

What the mark cannot tell you

• It does not rank one functional product above another
• It does not replace checking the ingredient list for things you react to
• It does not make a Korean product equivalent to a US over-the-counter drug

For sunscreens, the amount you apply still matters more than the badge, as our 2 mg/cm2 guide explains.

A short checklist before you buy

• Find the functional mark and the named claim next to it
• Read the full ingredient list, not only the highlighted active
• Patch test a new product on a small area first

This article is general information, not medical advice. Cosmetic categories describe regulatory claims, not treatment. Patch test any new product and consult a dermatologist about skin concerns.