Why it  is important? What protein test ?what is the importance of knowing the type of hair protein?  Will this differ in the type of products I use ? Today, I`ll answer you for all the questions, …

How the porosity test works: 1. Dictate the entire cup, not text. (People do not know why the text of the cup is dictated, but!) 2. The water is lukewarm, neither hot nor hot.   3. Do the test on…