Curl defining gel is the last step in a curl styling routine. It ensures that your curls maintain their shape while locking in hydration and protecting against frizz and heat.Wash and condition hair using products specifically formulated for curly hair, like Curl Crush Duo.Use a gentle hair towel to squeeze extra moisture from hair.Smooth a dime-size amount of curl defining gel onto hair from roots to ends. Keep your hands flat instead of raking them through your hair to keep your curls defined.Dry your hair with a diffuser or let it air dry.Once completely dry, gently scrunch the hair to break the gel cast. This step will make your hair soft to the touch while maintaining a flexible hold and keeping frizz at bay.