The optimal pH value of skin on most of our face and body lies between 4.7 and 5.75. So skin’s natural pH is mildly acidic. This mildly acidic pH is created by skin’s acid mantle. Sebum is the oily substance that our skin produces and secretes. It comprises our skin’s natural oils and is what hydrates, moisturizes, and protects our skin from damage.
What can affect skin's pH?
There are many external and internal factors that may have an impact on skin’s pH. Skin’s location on the body can also affect its pH and certain skin conditions.
Changes in temperature and humidity
Dirt and pollution
Washing too frequently
The pH of male and female skin differs slightly. The average pH of male skin is lower due to higher rate of sebum production in male skin.
Do you have dry skin?
When our skin’s pH is on the alkaline end of the spectrum, above 7 pH, it’s not producing enough sebum. This is when we experience acne breakouts, and sensitive, dry skin. Skin that isn’t sufficiently moisturized with sebum isn’t as resilient or elastic, which makes it especially vulnerable to fine lines, wrinkles, and sagging.
Do you have oily skin?
When our skin’s pH is more acidic, below 7 pH, it’s producing more sebum than necessary. This is what causes oily, greasy, acne-prone skin. Acidic skin is actually ideal for fighting off free radicals and slowing the aging process, but when the skin is too acidic, it becomes oily, greasy, pimply, increasingly sensitive, and easily irritated.
How to restore skin’s pH?
We can help to support skin’s optimum pH with healthy lifestyle choices, a regular skincare routine and by using products that respect skin’s natural pH, personalised professional facial and maintain its protective barrier.