The present invention relates to a cosmetic product having a visible pattern consisting of one or more colours, comprising a cosmetic composition including one or more dyes and/or pigments which contain magnetic or magnetisable particles, characterised in that said cosmetic composition is housed in a container enclosing a magnet capable of generating a magnetic field, whereby said dyes and/or pigments are positioned and/or oriented in the container by said magnetic field, thereby creating the visible pattern.