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Don't wash your hair every day. Wear a shower cap on days that you don't shampoo. Apply conditioner to your ends only. Use cool or lukewarm water when washing your hair. Use a coin-sized amount of shampoo.
Washing the grease from your hair may seem like the best solution at first, but daily washing actually causes your hair to produce more grease. Your hair tries to make up for the natural oils you're washing out each day, causing a cycle of increased grease. Wash your hair only 2 to 3 times per week maximum for the best results. Getting your hair wet without washing also causes natural oils to be stripped away and causes your hair to overcompensate in grease. To protect your hair from getting wet in the shower, secure it inside a shower cap. Hair that's prone to grease doesn't need more conditioning near the roots, it needs less. However, not conditioning your hair at all can cause your ends to get dry and damaged-looking. When you use conditioner after shampooing, apply it starting halfway down your hair and go all the way to your ends. Be sure to always rinse conditioner thoroughly from your hair, or use a leave-in conditioner. On days that you're not shampooing, you can get rid of style creases or cowlicks by rinsing the creased parts of your hair and applying conditioner there as well. Hot water opens the cuticle of your hair and strips more natural oils from your hair. Hot water also causes your pores, including the ones on your scalp, to produce more sebum, or thick oil. This thick oil will start traveling down your hair strands from your scalp as soon as you leave your hot shower. For the best results, keep your shower water as cool as you can, especially when rinsing shampoo and conditioner from your hair. Cool water closes the cuticle of your hair, which will help to keep moisture in. Using too much shampoo with each wash can lead to build-up and make your hair look heavy and greasy. When squirting shampoo into your hand to use, make sure you use no more than a large coin amount, like a quarter or two-pence piece. You may need more or less depending on the length and thickness of your hair. If you accidently squirt too much shampoo into your hand, remove some of it before starting to apply shampoo to your hair.