Azulene oil is a top quality, all natural after waxing care oil. The unique colour blue is from a compound called Azulene, this is mostly found within the essential oil of plants from the Asteraceae family (i.e. Chamomile). This is the same blue oil that is included in the complete Parissa waxing kits. For reasons of hygiene this product cannot be returned if unwrapped, unsealed or used, unless faulty.