1. The first step to rehydrate your dry winter scalp is to make sure that you are using sulfate free hair products that will keep moisture locked in and also prevent haircolor from fading quickly. An example of one of the best sulfate free shampoos on the market is PureOlogy Hydrate. I recommend this to most of my clients. Another important factor is to inspect the ingredients on all of your hair products to find out what you are putting on your hair. Alcohol is a main ingredient in commercial hair products (brands that you can find at your local grocery store), so be careful to always look behind the bottle. Keep in mind that the hair is the most vulnerable when it’s wet, make sure to either air dry or blow dry (always using a heat protectant prior) before stepping outside into the elements.