There is a zero to 14 scale denoting if something is acidic (low pH) or basic (high pH). The middle, seven, is neutral, and anything less than that increases in acidity to zero, whereas anything ...

As Dr. Joyce Teng told Elite Daily when discussing the best low pH cleansers, our skin is at its healthiest when it’s somewhere between 4 and 6 on the pH scale, so we should look for toners that ...

The minerals in hard water can also change the pH balance of your skin, weakening it as a barrier against harmful bacteria and infections. People with eczema may be especially vulnerable.