HEALTH & BEAUTY HAIR SPRAY OSIS+ Weight: 220GM. The SCHWARZKOPF OSIS+FLATLINER 3 HAIR SPRAY 200ML is a revolutionary product that provides salon-quality hair care in the convenience of your own home. The unique formula creates waves and curls while providing layers of protection and control of the hair. OSIS Flatliner 3 Hair Spray is the most advanced flatline technology on the market today. It provides long-lasting hold and style for all hair types. This hair spray has been specifically formulated to help control flyaways and create a sleek, straight hairstyle. It provides shine, manageability, and holds without weighing down your locks. Plus, its non-toxic and has no fragrance - so you can enjoy your new look without worrying about any nasty side effects.