How do dermarollers work?

A dermaroller is a skin care device used to help rejuvenate the skin, treat acne scarring, and reduce signs of aging. But how does dermarolling work?

Dermarolling or microneedling is a process that was originally carried out by a dermatologist. Nowadays, it is also commonly done at home with little training. It has gained popularity in recent years as an accessible, effective, and relatively non-invasive skin treatment.

How it works

When the dermaroller is rolled over the skin, the small, fine needles on the roller puncture the skin.

The holes that the needles create in the skin are tiny and considered to be superficial. For this reason, the treatment is not seen as invasive.

When the skin is punctured, this creates a controlled skin injury. It does not cause actual damage to the outer layer of skin. The needles help to break down any scar tissue.

The controlled injuries to the skin lead to superficial bleeding. This triggers the body’s wound healing response, and the following occurs:

• the skin releases substances that stimulate growth
• new blood vessels form in the skin
• the skin starts to make more collagen