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in the cortex
Yes, chlorine is damaging to hair I know , because if you get in water with chlorine strands of your hair will be left in the water.
hair is not hydrophobic, but can be if an oil treatment has been done as you cannot get the oil out of the hair with water, shampoo hair first then add water... so hair can be hydrophobic in some circumstances.
doing this will mess the hair up by making the hair dissolve infront of you which will leave you with no hair so i would not advise using bleach with water if you do want to keep your hair.
Hair does not have a pH, because it is (and will) not dissolved in water. Water with shampoo having pH = 5.5 reacts neutral when used for hair washing.
effect water temperature has on hair structure
When warm water is applied to the hair, the cuticles are opened. When cold water is applied to the hair the cuticles are closed. When shampooing and conditiong always use warm water. After you have finished apply a cold rinse over the head to maintain moisture and close the cuticles.
the cold wind affects your hair if it rains and the water wets the hair
Too much of hot water damages the hair as the heat in the water dries up the surface of the scalp. This will affect the moisture content of the scalp. The structure of the hair and the scalp gets enriched by water that is neither too hot nor too cold.
the hair
hot water opens the hairs cuticle to let in the shampoo/conditoner to clean it and make sure the conditoner gets in good, then rinsing with cool water closes the cutice back up to make your hair look smooth again
Root hair
There is very little change to hair structure between the pH ranges of 4 to 9.Outside of this range, ph affects your hair cuticle in a negative way, specifically, very high PH can dissolve hair.
At a high temperature the evaporation of water is easier.
The cells in hair are held together by covalent bonds and covalent bonds are affected by water.
How heat affects the hair when conditioning
Yes it does. Hot water and Cold water both have certain benefits and disadvantages to hair. Cold water results in shinier, cleaner and less frizzy hair. however, its not very pleasant to wash hair with cold water. Hot water helps with cleaning hair but it makes the root of the hair thinner.