Your scalp is much like your skin, but with extra oil glands and hair follicles. This means that sebum and dead skin cells can build-up, causing oiliness and flaking.
A build-up of sebum and dead skin cells can cause blockages in the pores – just like it can on the skin – but instead of breakouts you’ll get an increased amount of shedding. This issue can be one of the reasons as to why hair thins as we age. Cell turnover slows as we get older, and so your scalp needs a helping hand to scrub away excess dead cells. Exfoliating the scalp once a week will clear away any build-up.
Keeping your scalp clear and free of debris will also aid in the effectiveness of your usual haircare products, as they will be able to better penetrate the hair follicles.
For those that have a highly sensitive scalp, it is best to avoid harsh exfoliants, so look for products that contain salicylic acid or fruit enzymes, as these will gently soften dead skin enabling it to be rinsed away.