INCI (International Nomenclature Cosmetic Ingredient) – Cosmetic Ingredient Identification and Labelling
What Is INCI?
INCI (International Nomenclature Cosmetic Ingredient) is a system of internationally recognised names used to identify cosmetic ingredients. The names are developed by the International Nomenclature Committee (INC) and published by the Personal Care Products Council (PCPC) in the International Cosmetic Ingredient Dictionary and Handbook.
The system is designed to provide consistent and harmonised ingredient names across different markets and regulatory environments.
Why Are INCI Names Used?
A uniform naming system helps avoid confusion when the same ingredient may have several chemical, commercial, or common names.
INCI names support:
- Cosmetic ingredient labelling
- Formulation and technical documentation
- Safety assessment
- Regulatory compliance
- Scientific and technical communication
- Identification of ingredients associated with adverse reactions
- International marketing of cosmetic products
Using a standardised name also makes it easier for manufacturers, scientists, regulators, and consumers to identify the same ingredient across different products and markets.
INCI Names and Cosmetic Labelling
INCI names are particularly important when preparing the ingredient list on a cosmetic product label. The appropriate INCI designation should be used rather than a supplier's commercial name or an informal description of the raw material.
The INCI name identifies the ingredient, but it does not by itself describe the concentration, quality, purity, or source of a particular raw material.
What an INCI Name Does Not Mean
Having an INCI name does not mean that an ingredient has been approved for use in cosmetics.
The assignment of an INCI name does not confirm that an ingredient is safe for every application or that its use complies with the legislation of a particular country or region.
The safety and regulatory status of an ingredient must be evaluated separately according to its intended use, concentration, formulation, and applicable cosmetic regulations.
INCI in Cosmetic Product Development
During product development, the INCI name is normally considered together with other identifiers and documentation, such as the CAS Registry Number, EC Number, raw material specification, Safety Data Sheet, technical documentation, and regulatory status.
This combination of information helps ensure that the correct ingredient is used and correctly documented throughout formulation, safety assessment, and product registration.
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