I have been wondering for a very long if the temperature of the water one uses to wash their hair or during a shower really matters in how it turns out. I believed that washing my hair in cold water could keep it from getting big & frizzy but does this have a shred of logic or is it silliness?
It's no joke and it's not your imagination. Hot water opens up the littlle scales that cover up the hair leaving it frizzy and prone to tangle. Cold water seals then leaving hair soft and managable.
Even the weather affects your hair, so specially the temperature of the water you use.
It's as simple as this: when you use hot water you're opening the scales of your hair (if you check for hair close ups, you'll see it has scales). The intention is that these scales always lie flat, so the hair structure is protected from all the environmental agressions. When you wash your hair with hot water, you're opening them up, so it's bad. Also, when you wash your hair with really hot water, you can create bubles inside the hair strands (boiled water that creted bubbles, just like as you were boiling water to cook). That causes the hair to break so it's a bad thing too. So hot water is a no no.
Cold water does the contrary: it closes the cuticle and the scales and helps them lie flat. This way, the hair will be much more shiny (the hair shines when the cuticles lie flat, because it gets more regular). So the best thing would be to use cold water.
Now, it's important, mostly for the conditioner, to be absorved. as well as oil. I always start by shampooing my hair and then use a little warmer water to open the scales. Then I apply the conditioner and let it stay for about 2 minutes. Then I rinse it in the coldest water that I can bear.
It works good for me and to my sister too (altough she doesn't use water as cold as I do I guess). It may also depend on the hair but if you already noticed cold water works, then you're on the healthiest path ^^
See ya arround!