Diluents and solubilisers for perfume making. DPG (dipropylene glycol) is the standard odourless diluent for fragrance and essential oils, used for attars, roll-ons and burning oils. PEG-40 hydrogenated castor oil is a solubiliser that lets fragrance mix clear into water-based room sprays and mists. Fixatives are under Perfume Raw Materials.
