Drying shampoos that contain too much protein and not enough natural oils are not what winter calls for. When you use products that contain protein, your hair needs extra moisture so it won't become dry and brittle. (sometimes an after-effect of using too much protein.) Since you'll be deep conditioning more make sure to pick one that is not protein rich, as too much protein can cause more frizz. A few great ones to try are: DevaCurl Heaven In Hair or Bumble and bumble Curl Conscious Nourishing Masque.
Natural Oils Are a Must
In the cold winter months, make sure to always seal hair with an easily absorbed oil before heading out of the house. Natural oils such as jojoba, rosemary and lavender are so important in the cooler months because they help keep your scalp and hair in good condition.
Avoid the Towel
Never use a regular terrycloth towel after you shower. The coarse texture of a typical bath towel can roughen up the hair's cuticle and cause curl separation, resulting in frizz. Curlies need to use super-absorbent microfiber towels designed to reduce frizz and dry time while creating beautifully defined curls.
The wide-toothed comb is your friend; do not use your hands. It's important to use a wide-toothed comb because it works through the hair more easily with less damage. Always start from the bottom and work your way up.