"We have taken to using fragrance as an everyday essential product rather than the indulgence it originally was," she explained. "Growing plants to feed the scale of the mainstream perfume industry, if it were to go all natural, would mean converting land we use to grow food to perfume crops – that's not really an ethical or sustainable practice." Her advice? Use solely natural scents sparingly or opt for blends that combine synthetics and naturals in a sustainable way.