Transform coarse hair with Alterna Restructuring Bond Repair Leave in Protein Cream. This deeply restorative leave-in treatment works wonders on coarse, porous or severely damaged hair.Alterna Restructuring Bond Repair Leave in Protein Cream is a deeply restorative leave-in treatment that is formulated with strand-building proteins. Strand-building proteins restructure strands, fill in gaps and tears in the cuticle while strengthening the hair in order to protect from breakage and future damage. Alterna Caviar Repair RX Re-Texturizing Protein Creme significantly improves hair\'s smoothness, texture and manageability.