What is the generally accepted pH level of the skin?

The generally accepted pH level of the skin is mildly acidic, typically ranging between 4.5 and 5.5. This mild acidity is essential for maintaining the skin's barrier function, which helps protect against harmful bacteria and environmental pollutants. The acidic environment supports the skin's natural flora and helps prevent infections.

When the skin's pH is in the mildly acidic range, it facilitates enzymatic processes involved in skin regeneration and contributes to moisture retention, making the skin appear healthy and radiant. An optimal pH level also aids in the functioning of certain skin proteins, like keratin, which are vital for the skin's structural integrity.

In contrast, a neutral pH would not offer the same protective benefits and could leave the skin more susceptible to irritation and infection. An alkaline or highly acidic environment can disrupt the skin's natural barrier, potentially leading to a range of issues, including dryness, irritation, or skin conditions like eczema and acne. Thus, maintaining a slightly acidic pH is crucial for healthy skin function.