When products refer to our skin's Ph balance they are talking about the skin's balance of our acidic and alkaline (acid's counter active element to keep acid levels from being too high) levels. The normal range is between 4.0 and 6.0. Due to our diet, facial products, (nix the regular soap please?) our polluted environment and stress our Ph balance can be thrown off; acidity levels being higher than it should be, causing our skin problems. Ph balance fights infection and maintains the skin's barrier function. Ph balanced, healthy skin is hydrated and less likely to suffer irritation and lose elasticity.
How can we keep our skin balanced naturally? Outside of using products that help us to maintain the balance, eating foods with alpha hydroxy acids will help. Foods such as apples, berries and citrus foods all contain alpha hydroxy acids.
For Ph balance info throughout the body click here.