I try to use use most of the five steps in John Freida's frizz ease collection. The serum, mousse and secret weapon are the three I can't live without. Also, I always used to diffuse my hair with the dryer on the fastest drying setting, a while ago I started diffusing still with hot air, but on one of the lower air settings, takes a little longer but it is really helping to keep frizz down and the curls more defined.