Dry skin is typically more alkaline than oily skin. While the ideal skin pH for most people falls within a slightly acidic range (around 4.5 to 5.5), dry skin often exhibits a pH above 5.5, leaning towards the alkaline side of the scale.
Understanding Skin pH
The pH scale measures how acidic or alkaline a substance is. A pH of 7 is neutral; below 7 is acidic, and above 7 is alkaline. Our skin's slightly acidic nature (acid mantle) is crucial for maintaining a healthy barrier. This barrier protects against bacteria, retains moisture, and helps prevent irritation.
- Acidic skin (pH below 7): Often associated with oily skin and a tendency towards acne.
- Alkaline skin (pH above 7): Often associated with dry skin and conditions like eczema and psoriasis.
Several sources confirm this: The pH of oily skin ranges from 4 to 5.2, while dry skin typically has a pH above 5.5. (Obagi Medical, Cleveland Clinic). This higher pH in dry skin means it's less acidic and more alkaline than skin with a more balanced pH. Maintaining the right pH balance is essential for healthy skin. A disrupted pH can lead to various skin issues. (Everyday Health, Dermatology Consultants of Frisco)
Therefore, while a slightly acidic pH is optimal for overall skin health, dry skin tends to be less acidic and more alkaline. This is why alkaline-based skincare products may sometimes be beneficial for those with dry skin conditions.
