The Role of Sebum in Scalp Health
a part of the SCALP CARE ESSENTIALS SERIES
Sebum, a natural, waxy oil produced by glands in hair follicles, plays a crucial role in maintaining the health of your hair and scalp. Here are some of its key functions:
1. Natural Conditioner: Sebum acts as a natural conditioner, keeping the hair strands moisturised and preventing breakage. It keeps the hair soft, supple, and manageable, reducing friction between individual hair strands.
2. Protection: Sebum forms a protective barrier on the scalp and hair. This barrier helps shield the skin and hair from external factors such as environmental pollutants, UV radiation, and harmful microorganisms. It serves as a natural defence mechanism against the elements, preventing potential damage.
3. Moisture Regulation: Sebum helps regulate the moisture balance of the scalp and hair. It prevents excessive water loss from the skin and hair, which is especially crucial in dry conditions. This moisture retention keeps the scalp and hair adequately hydrated.
4. Antimicrobial Properties: Sebum contains fatty acids and other substances that possess antimicrobial properties. These components help protect the scalp from harmful microorganisms, reducing the risk of infections or scalp conditions.
5. pH Balance: Sebum contributes to maintaining the pH balance of the scalp, which is typically slightly acidic. A balanced pH level is essential for a healthy scalp and hair, as it helps regulate the activity of beneficial microorganisms and minimises the risk of issues like dandruff.
However, an excess or deficiency of sebum can have a significant impact on hair thinning and hair loss. Excessive sebum can lead to oily hair and scalp, which may contribute to other issues like acne or clogged hair follicles. On the other hand, insufficient sebum production can result in dry hair and scalp, making the hair more prone to breakage and scalp conditions.
Read the next article in the Face Care Essentials Series: Common Scalp Issues and Their Impact on Hair.