Why is PH balance something you should know about for your hair? Ph is a term for the scale that determines the acidity(acid) or alkalinity (alkaline) of any substance. Low on the scale is acid( 0-6), alkaline is high (8-14) water is 7, making it neutral. The ph of human hair is 5, so its is naturally acidic. It is important to use products that are also low in ph to keep hair healthy !
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