Just like the rest of your body, hair follicles on the scalp can get clogged with a variety of substances. The most common is sebum, which is your natural oil that is secreted from the sebaceous gland in the hair follicle. This oil combines with dirt chemical residue from hair products to clog those pores right up. Scalp treatments are a great way to clear them out and reset the sebum levels.
The products used in a scalp treatment combined with the gentle exfoliation and scalp massage will help to unclog any buildup in the hair follicles, which then allows the follicle to release its natural conditioning oils. The exfoliation and massage portions of a scalp treatment help to stimulate blood flow to your scalp, making it easier for blood to reach your follicles and deliver important nutrients.
Further Reading:
Top Essential Oils for Hair Loss
Best Foods for Hair Growth