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What Is a Dermaroller and How Does It Work?

Microneedling with dermaroller is a new technique that treats scars, stretch marks and wrinkles, and for overall facial rejuvenation. It is a straightforward and relatively cheap modality that may also be used for administering drugs transdermally.


Dermaroller attained popularity first as a simple approach to the treatment of scars, particularly those caused by acne. It may be used safely by any licensed dermatologist with minimum training.

The Dermarolling Instrument

The typical dermaroller used for acne scars is drum-shaped and studded with 192 microneedles – 0,1 mm in diameter and 0.5 to 1.5 mm in length – arranged in eight rows. The microneedles are etched into silicon or medical-grade stainless steel with the use of reactive ion techniques. The instrument undergoes pre-sterilization through gamma irradiation. Medical dermarollers can be used only once.

How It Works

Every needle on a medical dermaroller has a length of about 0.5-1.5 mm. During treatment, the needles prick into the stratum corneum of the skin and create holes known as microconduits, without damaging the epidermis. Dermarolling over a particular area 15 times makes about 250 holes for every square centimeter. Microneedling stimulates the release of growth factors that lead to the production of new collagen (natural collagen) and elastin in the papillary dermis (upper layer of the skin). Additionally, new capillaries are formed, and with this post-treatment neovascularisation and neocollagenesis comes a visible reduction of scar tissue. Hence, the procedure is rightly called “percutaneous collagen induction therapy,” and has been used for photoageing treatments too.

Dermarolling Acne Scars

Microneedling or dermarolling is fast and simple procedure that can be done in any office. First, topical anesthesia is applied to the area of treatment, where it is left to work for 45 minutes to an hour. After preparing the area, the dermatologist starts dermarolling until 15 to 20 vertical, horizontal and vertical strokes are completed. Saline pads are then used to wet the site. The entire procedure takes about 15 to 20 minutes, depending on how large the treatment area is.

Prior to the next treatment, there should be at least a six-week gap, the period it takes the body to manufacture new natural collagen. For moderate acne scarring, three to four treatments are usually necessary.

Post Care

In general, microneedling is well-tolerated by patients, although it can cause erythema, which may last for a maximum of three days following treatment. Dermatologists recommend photoprotection for a week, as well as the application of local antibiotic creams. Patients are normally able to return to work the following day.

Self-use Dermarollers

Self-use dermarollers are typically shorter than 0.15 mm, and come in handy for delivering lipopeptides and other anti-aging substances through the transdermal route. They are usually made to be used biweekly up to one hundred times. After every use, the rollers must be cleaned with hot tap water and shaken dry.

Source: http://confessionsofascorpio.com/2016/09/03/diy-tips-for-clearer-skin/