After discussing whether it’s good to wash our face with hot, warm or cold water, I thought I’ll cover the same for our hair.
I like to wash my hair in lukewarm water but on some days, I might end up with a rinse in cold water because I find this helps to control the grease on my scalp slightly better. In fact, this is recommended according to information about haircare in wiki.
Shampoo is helped by warm temperature water, which open the cuticle of the hair and release any oils or other substances beneath. Pure water has a pH of 7, and when shampoo has removed the slightly acidic sebum from the hair, the pH on the surface of the scalp is raised. Using cold water as a final rinse can help close the scales of the cuticle, and can help constrict the openings of the sebaceous glands to help moderate sebum production.
However, using cold water as a final rinse causes some problems as well. While some people have claimed that using cold water as a final rinse made their hair shinier as the cold water closes the hair cuticle, but personally, I noticed that my hair looks flatter when I rinse out with cold water compared to when I don’t. Because my hair is already quite limp, this isn’t very ideal for me. The good thing is that I always have my dry shampoo to save me from a bad hair day.
So if you want more volume for your hair, you might want to keep to warm water to rinse your hair. But if you want a less greasy scalp and your hair isn’t limp like mine, then a cold rinse maybe helpful. However, my feel is cold water may not work well with conditioner as the hair may look a lot flatter. As for hot water? OUCH!
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