[excerpt] Wash every day: Fine, thin hair and most short styles. Fine hair tends to become flat and greasy-looking if left unwashed for too long, thanks to the natural oils from the scalp. Short hair can become greasy quickly, too. Pick a gentle shampoo and follow with a light conditioner -- sometimes called a detangler -- with every shower.
Wash two to three times a week: Long, thick and/or curly hair. These hair types tend to become dry easily, especially at the ends. That's because the scalp's natural, moisturizing oils have a long way to travel to get to the ends, and are often washed away before reaching them. By skipping a day in between shampoos, these natural oils have more opportunity to lubricate and condition the hair. On your off days, simply style hair dry, or rinse with warm water, condition, then dry and style as usual. Choose a moisturizing shampoo and conditioner.
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