As some of you readers know, a deluxe keratin treatment at the salon can get you up to three months of frizz-free hair. This three-step kit from Suavé uses similar heat-activated keratin to seal your strands (keratin is a natural protein). This leaves your hair smooth, but not flat, for up to a whole month! I recommend Suavé Professionals Keratin Infusion 30 Day Smoothing Kit. It's sold at most drugstores for around $13.