The sebaceous glands in our skin are distributed all over the entire body, but on the scalp they are particularly large and abundant. These glands produce sebum (grease) which gets on to the skin surface via the hair follicle aperture then turns into a thin liquid, thus making it able to spread rapidly. When the sebaceous glands are over active the sebum flow is higher than normal which results in oily greasy hair.
This excess can lead to greasy dandruff and the condition is professionally referred to as Seborrheic Dermatitis.
The cause can be down to a number of factors:
- Poor nutrition
- Stress
- Chemical & Mechanical applications
- Environmental influence
To prevent the skin from getting oily too quickly, you need to use a shampoo that is effective at absorbing the surplus grease without skin irritation or stimulating the sebaceous glands further. Both System Professional 1.7 Regulate Shampoo and Kerastase Bain Clarifant gently cleanse without drying out the ends of the hair, aid in delaying return of any grease and give a pleasant refreshing skin sensation.
Styling Tip:
In all cases it is recommended to use tepid water (not too hot or cold) and to massage the hair and scalp gently so that you do not over activate the sebaceous glands and produce excessive sebum.