5. Let your hair dry 90 percent of the way before you blow-dry. Too much hot air focused directly on your strands dehydrates it, making it frizzy. If you have straight-to-slightly-wavy hair, let your hair air-dry 90 percent of the way and then use a dryer on it for the last 10 percent.
6. Brush your hair regularly to help distribute its natural oils. Hanging your head upside down and brushing your hair with a boar bristle brush, this helps distribute the oils from your scalp/roots onto the rest of your hair, keeping your hair hydrated and helping to block out humidity.
7. Keep straight hair from getting frizzy by brushing dry oil through it with a mixed bristle brush. While your hair is still wet, apply a moisture-locking dry oil from your ends to midway up your hair shaft; oil acts as a barrier, keeping liquids from penetrating. Once your hair is 90 percent dry, use a round brush with mixed bristles (the plastic ones pick up the hair and pull it into the boar bristles for added tension, which makes the hair super straight) to seal the cuticle for a smooth finish. You can also flat-iron your hair after it’s dry — nothing will seal the cuticle like intense heat.
8. De-frizz wavy hair by putting it in a bun after it’s dry or defining your waves with a curling iron. After you’ve shampooed, conditioned, and applied the dry oil from ends to midshaft, blow-dry your hair, and either put it in a bun if you want looser waves (the frizz-fighting happens as your hair cools, when your cuticle locks into place) or define your curls with a barrel iron. The heat will keep the frizz at bay.
9. Use a cream hydrator and a diffuser for thick, coarse, and curly hair. After you’ve shampooed and conditioned your hair, while it’s still wet, apply a cream-based product from root to tip. When you apply the product, instead of rubbing it in, warm the product between your palms and fingers, and squeeze it onto your hair. Then, wrap your curls around your fingers to shape them exactly how you want, and let your strands air dry. You can also use a diffuser on low speed, high heat (aiming it downward to keep it from ruffling the cuticle) to dry it.