The Skin is comprised of:
Normal skin has a pH value of 4.5 to 5.6 depending on the oil balance of the skin. Skincare products that have a pH value within the range of a normal human skin are usually better. Healthy skin has a normal pH value, as soon as the skin is very oily the skin is less acidic and bacteria can grow in the sebum that is stuck in the pores.
A dry, dehydrated skin creates a very strong barrier to sebum being expressed onto the skin’s surface, and this causes blockages. To develop healthy skin, we need to respect and correct the pH value where possible. Through the use of good skin care products the outer layers of the skin will be soft and supple.
To improve oily skin, it is imperative to make sure you use a good cleanser that will normalize the pH levels and also hydrate the exterior skin layers. The oil that is produced can be released onto the surface and then washed off. If the oil is blocked in the skin due to dryness these blockages can quickly turn into infections.
The pH value of a sensitive skin is not static; this contributes to the reactivity of this type skin. The characteristics of a sensitive skin are: Diffuse redness and dry, flaky spots, Itchy, Lacks water and oil.