Keratin Care Biocure Hair Straightener Brazilian Keratin 1000 ml 6 Months Effective Hair Straightening Set Practical ease of use at home... Keratin Care & Brazilian Blow Dry Keratin is the main protein structure of your hair and when the outer layer is damaged, it causes hard, damaged and dry hair. Brazilian keratin or blow dry is used in repairing damage to the cuticle layer of the hair, controlling frizz, restoring the lost shine of the hair and hair straightening treatments. Keratin care protects the structure of your hair and saves you from frequent visits to the hairdresser or blow drying with its long-lasting blow-dry effect.