Silicone scar strips are a non-invasive treatment widely recommended by dermatologists and plastic surgeons for managing problematic scars. Their primary function is to improve the appearance of hypertrophic scars and keloids, which are raised, thickened, and often discolored areas of skin resulting from collagen overproduction during healing. These flexible, self-adhesive strips are considered a first-line therapy because they are easy to use and well-tolerated. The effectiveness of this treatment depends entirely on consistent and correct application over a specific time frame.
The Science Behind Scar Improvement
The effectiveness of silicone therapy stems from its ability to create a controlled, occlusive environment over the scar tissue. By sealing the area, the strip prevents excessive transepidermal water loss (TEWL) from the scar surface. This process increases the hydration of the outermost layer of the skin (stratum corneum), which is typically dehydrated in developing scars.
This localized hydration signals skin cells to stop producing chemical messengers (cytokines) that stimulate fibroblasts to continue their overproduction of collagen. By normalizing the hydration level, the silicone strip effectively down-regulates excessive collagen synthesis. The resulting biological change causes the scar to become flatter, softer, and less red over time as the excess collagen fibers are remodeled.
Determining Wear Time and Treatment Length
Consistent contact between the silicone material and the scar is the most important factor for achieving optimal results. The recommended daily wear time is between 12 and 24 hours, with continuous wear being the most effective approach. Experts suggest aiming for 18 to 20 hours daily, removing the strip only for brief periods to allow for bathing and cleaning of the skin and the strip itself.
A gradual introduction is often necessary to prevent initial skin irritation. Begin by wearing the strip for approximately four hours a day, then gradually increase the wear time by one to two hours daily. This allows the skin beneath the strip to adapt to the occlusive environment and constant contact. If excessive redness or irritation occurs, reduce the wear time until the skin calms down before attempting to increase the duration again.
The total duration of the treatment is measured in months and varies based on the scar’s age and severity. For new scars, treatment should start as soon as the wound is fully closed and healed, typically lasting between two and six months. More severe or established scars, such as keloids, may require an extended application period of six to twelve months or longer. Treatment should continue until the scar is considered “mature,” meaning it is no longer raised, thick, or actively red.
Essential Care and Replacement Guidelines
To maintain effectiveness and hygiene, the silicone strip must be removed daily for cleaning. The strip should be gently washed with a mild, non-oily, and fragrance-free soap under lukewarm running water. This helps remove accumulated oils, dirt, and dead skin cells that reduce adhesiveness and can irritate the skin.
After washing, rinse the strip thoroughly to ensure no soap residue remains, as this affects tackiness and skin contact. The strip must then be allowed to air dry completely, adhesive side up, before being reapplied. Avoid towel-drying because lint adheres easily to the sticky surface, compromising the seal.
A single silicone strip is reusable and can last for several weeks with proper care. The strip needs replacement when it becomes difficult to clean, starts to tear, or permanently loses its ability to stick to the skin. If the adhesive wears off, the strip can still be secured with medical tape to maintain the occlusive effects until a new one is needed. When not in use, storing the strip on its original plastic backing or in a clean, closed container protects it from dust and debris.