BC Bonacure Keratin Smooth Perfect Conditioner - 200ml For: For thick, coarse, wavy, curly, unmanageable and frizzy hair. Hair is unruly, thick and coarse and can be wavy or curly. Often frizzy, the hair needs a daily dose of smoothing moisture. BC Bonacure Keratin Smooth Perfect Conditioner is an effective taming conditioner for unruly, coarse hair. A new combination of highly effective cationic polymers neutralizes the negative charges on the hair’s surface for long lasting control, while Silicones help to keep hair tamed and straight. Intensively detangles Smooths the hair surface Improves manageability Protects hair from humidity