The corner of 62 Blandford Street in London is awash with a fluorescent pink glow. Among Marylebone's four-storey town houses is a gallery-like space covered in floor-to-ceiling strips of neon lights. The room is empty, save for a plain white pillar in the centre furnished with one tiny 9ml bottle of scent - a vial of Rose Oil Isparta, one of five debut fragrance oils from the newly launched brand Ostens.
