What is pH Balance?

pH, which stands for “potential hydrogen,” measures how acidic or alkaline a substance is on a scale from 0 to 14. In skincare, pH balance refers to maintaining your skin’s natural acidity—typically around 4.5 to 5.5. This slightly acidic environment is vital for protecting the skin barrier, which defends against bacteria, pollutants, and moisture loss.
Disrupting this balance can lead to irritation, breakouts, or dryness. Understanding your skin’s pH is the first step to supporting its health and resilience. For a deeper explanation, visit the National Institutes of Health resource.