The Flatliner Flattening Iron Serum from OSIS+ is the ultimate product for achieving smooth and shiny hair. With a volume of 200 ml, this serum is perfect for daily use and will leave your hair with a fantastic shine. This serum is specially designed to combat frizz and unwanted frizz, so you can have the hair you've always dreamed of. It works by creating a protective barrier around the hair strands, preventing moisture from penetrating and causing unwanted frizz. The result is a smooth and well-groomed look that lasts all day. The Flatliner Flattening Iron Serum is easy to use. Apply a small amount of serum in the palms of your hands and distribute it evenly through damp hair. Then use a hairdryer or flat iron to style your hair as desired. The serum will not only protect your hair from heat styling tools, but it will also provide extra shine and softness. Whether you have curly, wavy, or straight hair, the Flatliner Flattening Iron Serum from OSIS+ will be your best friend when it comes to achieving a perfect and smooth look. Forget about frizz - this serum will give you the hair you've always wanted. So get ready to impress with your shiny and well-groomed hair, every single day.