Brand from Japan: Japan gateway. Use your salon hair everyday!Keralis noir Black Arrow for deep damage.Professional grade luxury repair ingredients:Unique formula repairs damaged hair from the inside.Formulated with rebric acid and glyoxyl acid.Shapes the shape of your hair and leads it to supple and shiny hair.Ultra low molecular keratin allows it to penetrate deep into the hair and adsorb inside the hair.It leads to increased volume and flexibility of hair while repairing damage.How to use:Insert between shampoo and conditioner.After rinsing, apply conditioner.Depending on the condition of your hair and your preferred finish, using only the hair pack serum is also acceptable.After towel-drying, dry with aa hairdryer.Apply heat thoroughly and blow-dry while straightening your hair.Finish by applying heat thoroughly with a curling iron.