Schwarzkopf Bonacure Hairtherapy Oil Miracle Light Finishing Treatment. This light finishing treatment Bonacure Hairtherapy Oil Miracle Light Finishing Treatment is a luxurious hair treatment, ideally suited to fine and normal hair types.The perfect finishing touch to your hair care routine, this hair oil nourishes hair leaving a glossy shine, frizz free finish and silky soft feel. Unique evaporation technology ensures hair isnt overburdened and it also helps speed drying time, plus gives your style light control. Your hair is radiant, healthy and silky smooth.