In recent years, there has been a surge in “homemade” and customisable, even ultra-customisable, cosmetics. The lockdown caused by the Covid-19 pandemic has accelerated this practice. Consumers want to save money, reduce their waste, but above all they want to know what they are really using. They want transparency! But while this is a good feeling, it is not so simple from a purely regulatory and safety point of view! Estelle Dehier, from Labosphere, explains.