The pH is a degree of acidity or alkalinity of a solution. This value is measured by the pH scale,

The pH is a degree of acidity or alkalinity of a solution. This value is measured by the pH scale, which grades are defined from 1 to 14, and 7 is the neutral value. oil spill The only substance with neutral pH water. Hair and scalp have a pH of 5.5-6.5, which is slightly oil spill acidic, it is the value that gives better protection against harmful environmental factor. Some professional products, such as paints or oxidising preparations for permanent, have an alkaline pH, which allows them to operate more efficiently. Alkaline reaction changes the structure of the hair, opens the scales, so that the appropriate substances can penetrate into the interior. Products with acidic pH close husks, make hair shiny, easy to comb, restored to their natural state.
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