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Washing your hair every day can strip your scalp of its natural oils, so try to use shampoo and conditioner every other day instead. Use a leave-in conditioner once a week for thick and full hair. Avoid conditioners that contain wax, which can weigh your hair down. Styling curly hair, for example, requires paying attention to what makes the most of the curls; don't try to flatten your curly hair with pomade or curl your straight locks on a daily basis. Doing so will wear out your hair and ruin its texture over time. Choose a hairstyle based on its natural characteristics so your hair stays undamaged. Using the right materials can make a world of difference when caring for your hair. A wide-toothed comb or brush with natural bristles work well with long hair. If you use rubber bands, look for cloth-covered bands to avoid tangling your hair with the bands. Excessive blow drying can dry out your hair and scalp, and it can damage your hair if you don't apply a heat protectant beforehand. Only blow dry your hair on special occasion. On an everyday basis, air- or towel-dry your hair.

Summary:
Shampoo 2-3 times a week. Work with, not against, your hair's natural characteristics. Invest in high-quality grooming materials. Avoid blow drying your hair.