Know when to wash. 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
Use conditioner. Always use a good conditioner after you shampoo. Conditioner will provide moisture for your hair, while making it softer and more manageable. It will also make your hair easier to brush out after the shower, thus causing less damage. Only apply conditioner to the ends and mid-lengths of your hair, otherwise your hair will look greasy.
Use a comb. Wet hair is more susceptible to damage than dry hair, it is more elastic and more likely to break. Since hair is most fragile when it's wet, you shouldn't rip a brush through it after washing. Instead, you should spray some detangler on it, and then use a wide-tooth comb to remove tangles and minimize breakage.
Buy shampoo and conditioners suited to your hair type. Pick a shampoo and conditioner combo for fine, greasy, dry or colored hair, and stick to it! No matter what type of hair you have, there’s a specialist product made to care especially for you.
Don't towel dry hair. As hair is more fragile when wet, roughly towel drying hair can cause damage. Rubbing wet hair with a towel can rough up the cuticle (outer layer of the hair), causing more breakage and leading to frizzy or fluffy hair.
Use hair dryer sparingly. Frequent use of a hair dryer can dry out hair, causing breakage and split ends. Try to limit your use of a hair dryer as much as possible, let your hair dry naturally instead. If you do use a hair dryer, don't hold it too close to your hair, as this will cause your hair to burn.