The Cosmetic Products (Safety) Regulations 1996

2.  Precise identification of the cosmetic ingredient for which confidentiality is requested, namely—

(a) where they exist, the CAS, EINECS and colour index numbers, the chemical name, the IUPAC name, the INCI name, the European Pharmacopoeia name, the International Non-proprietary Name as recommended by the World Health Organization and the common name as provided for in the common ingredients nomenclature;

(b) the Elincs name and the official number allocated to it if it has been notified pursuant to Council Directive 67/548/EEC and an indication of the decision to approve or refuse any request for confidentiality made under Article 19 of that Directive;

(c) where the names or numbers referred to in sub-paragraphs (a) and (b) above do not exist, for example in the case of certain ingredients of natural origin, the name of the base material, the name of the part of the plant or animal used and the names of the cosmetic ingredient’s compounds, such as solvents.