When Does a Cosmetic Become a Medicine?
September 11, 2025
Understanding the regulatory boundary and how Zelmic supports cosmetic brands
The line between cosmetics and medicinal products is not always clear, especially in the field of skin formulations. For companies developing innovative creams, gels, or serums, understanding this distinction is critical.
Cosmetics vs. Medicinal Products – the Regulatory Difference
A cosmetic product is intended to cleanse, protect, or care for the skin without altering the body’s functions.
The medicinal product, on the other hand, is defined by its claim to prevent, treat, or cure disease. The moment a product communicates a therapeutic effect – such as “treats eczema” or “reduces psoriasis” – it crosses into the medicinal category.
This distinction brings major consequences:
- Cosmetics must comply with the EU Cosmetics Regulation (EC) No 1223/2009, focusing on safety and correct labelling.
- Medicinal products fall under Directive 2001/83/EC, requiring documented clinical efficacy, safety, and regulatory approval by authorities such as the Swedish MPA or EMA.
Example:
A cream marketed with “moisturizes dry skin” → Cosmetic
A cream claiming to “treat eczema” → Medicinal product
Why This Matters for Cosmetic Companies
This is more than a legal nuance. The classification determines:
- What kind of data you must generate.
- How the product must be manufactured (GMP vs. cosmetic standards).
- Whether you will undergo regulatory review before market entry.
For cosmetic companies, particularly those developing cosmeceuticals or products with strong active ingredients, it is crucial to plan early for the regulatory implications of your claims.
How Zelmic Supports Cosmetic Brands
At Zelmic, our expertise lies in topical formulations – spanning cosmetics and pharmaceuticals. We support cosmetic brands operating close to the medicinal boundary with:
✅ In vitro permeation testing (IVPT): Demonstrating skin penetration of active ingredients.
✅ Stability and compatibility studies: Ensuring robust formulations and reliable shelf-life.
✅ Regulatory strategy guidance: Helping you understand what claims are possible – and what data is needed to support them.
✅ Manufacture for cosmetic clinical studies: With our GMP certificate, we can produce topical products for use in clinical trials, ensuring quality and compliance.
By combining scientific expertise with regulatory insight, we help cosmetic companies strengthen their product documentation and avoid costly missteps.
Learn More
The Swedish Medical Products Agency provides clear guidance on cosmetics and regulations:
Swedish MPA – Cosmetics and Regulations
At Zelmic, we are dedicated to bridging science, regulation, and innovation in topical development. Whether your product is firmly cosmetic or bordering on medicinal, we ensure that your strategy is future-proof.
Get in touch with us to explore how we can support your next cosmetic or topical development project: Contact Zelmic
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