It comes as the idea of unisex or genderless clothing is at the centre of the cultural zeitgeist.

For example the recent launch of Zara’s “ungendered” range, which consisted of eight pieces; plain T-shirts, hoodies, jeans and the like in grey, white and navy.

According to Estee Lauder, which recently bought niche brand Le Labo, certain specific ingredients carry deep gender associations, for example Iris, which has historically been used a lot in make-up products like face powders for its fineness and soft smell.