知道什么时候洗头。 使用护发素。 使用一把梳子。 买适合你头发类型的洗发水和护发素。 不擦干头发。 少用电吹风。

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
People often make the mistake of thinking that they need to wash their hair everyday, but washing hair too often can actually dry hair out, or weigh it down with product. For most people, washing your hair twice a week is adequate.  The longer, thicker, curlier, and more processed your hair, the longer it can go between washes. If your hair gets oily very quickly and you must wash everyday, use a lightweight or "everyday" shampoo, as these contain milder detergents than others. Alternately, you