There’s a lot of debate surrounding which water temperature is best for our hair. The general opinion seems to be that cold water comes out on top.
However, hot water is better at removing any dirt and build-up of oil but, it can be too harsh and strip your hair of the good natural oils that keep your hair healthy, soft and moisturized. So, it’s best not to use hot water every time you wash your hair as this can dry it out.
People often say cold water helps to close off the pores in your scalp after washing to keep them from building up with dirt and oil. While there is no scientific evidence to back this up, women have sworn by using cold water for shinier hair for years.
The best combination would be to start off by rinsing your hair with warm water to break up the dirt and excess oils, then switch to cooler water for the final rinse to help keep moisture in and give you smoother, shinier hair as a result.