Stretch marks that appear on the abdomen, thighs, buttocks, and arms after experiencing a rapid increase or decrease in body weight are a common skin change for many people. Beyond being a visible concern, they can also be a sign that the skin’s internal structure has been damaged. In particular, when the skin stretches over a short period as body weight increases, the elastic fibers in the dermis cannot keep up, causing microscopic tears. As a result, stretch marks that look like lines remain.

Skin has elasticity that allows it to stretch and shrink within a certain range, but if body weight increases rapidly, the dermis made up of collagen and elastin cannot withstand it, leading to damage. In this process, stretch marks initially appear red or purplish, and over time they often turn white and become deeply fixed on the skin’s surface, making them difficult to improve with simple moisturizing care alone.

Because stretch marks are not a pigment issue on the skin surface but rather a changed structure in the dermis, they often do not disappear completely over time and only fade to a degree. In particular, the older the stretch marks are, the lower the skin’s regenerative ability becomes, and general creams or massage have limitations. For that reason, medical procedures may also be considered as an approach that directly improves the skin’s internal environment.

The Mirajet procedure is an equipment-based treatment that uses a high-pressure jet spray principle to evenly deliver active ingredients into the dermis without using needles. Unlike traditional injection methods, it can reduce skin damage while still providing uniform stimulation and ingredient delivery to a certain depth, so it is used for skin concerns that require even treatment over a wide area, such as stretch marks.

The Mirajet procedure works by delivering ingredients that help with regeneration along with repeated microstimulation to the skin in areas with stretch marks, helping to make the skin texture more even and encouraging a recovery in elasticity. In particular, it is described as one of the management options because it can be applied with the goal of improving the skin surface texture not only for early red stretch marks but also for older white stretch marks.

Before the procedure, the color, depth, time of onset, and skin thickness of the stretch marks are comprehensively evaluated, and then the treatment area and number of sessions are planned. During the procedure, the Mirajet device is used on the localized area to provide spraying stimulation at regular intervals, and because no needles are used, it is described as causing relatively less concern about pain and bleeding. However, depending on the individual, temporary redness or a feeling of heat may occur.
Managing the skin with a focus on regeneration, such as with the Mirajet procedure, is helpful when body weight changes have stabilized. Even after the procedure, moisturizing care, sun protection, and lifestyle habits that avoid rapid weight fluctuations should also be maintained to positively affect the results. Stretch marks are not something that can be resolved with just one treatment, so a consistent approach is important.
If you are concerned about stretch marks, it may help to first understand the right management direction for your current skin condition and then consider gradual improvement within a reasonable range.
