Scars are a natural outcome of the body’s healing process following skin injury, yet their appearance can often be a source of concern. Many individuals seek ways to minimize the visibility of these marks, especially those that have been present for some time. This article explores the use of silicone gel as a treatment option, specifically investigating its effectiveness on older scars.
How Silicone Gel Works on Scars
Silicone gel functions by creating a semi-occlusive barrier over the scar, which helps to increase the hydration of the outermost layer of the skin, known as the stratum corneum. This increased hydration reduces trans-epidermal water loss (TEWL) from the scar tissue. By maintaining optimal moisture levels, silicone gel helps to regulate the production of fibroblasts, which are cells responsible for collagen synthesis.
The controlled hydration provided by the gel influences the scar’s microenvironment, promoting a more organized collagen matrix. This process can lead to softer and flatter scars. Additionally, silicone gel may modulate the expression of growth factors, balancing collagen production and breakdown, which is crucial for scar remodeling. The gel also forms an invisible, breathable layer that protects the scar from bacterial invasion, preventing bacteria-induced excessive collagen production.
Effectiveness on Older Scars
Silicone gel improves the appearance of various scar types, including those that have matured over time. Research indicates that silicone treatments can significantly enhance the height, redness, and overall look of scars, particularly hypertrophic scars and keloids. Hypertrophic scars are raised and remain within the original wound boundaries, while keloids extend beyond them.
While newer scars may respond more quickly to treatment, older scars can still show noticeable improvements with consistent use. Clinical studies have shown benefits of silicone therapy on scars up to four years old, including reduction in texture, color, and height. The International Advisory Panel on Scar Management recommends silicone as a primary treatment for hypertrophic and keloid scars, as well as widespread burn scars. Although complete scar erasure is unlikely, continued application can lead to the scar becoming flatter, smoother, less visible, and more closely matching the surrounding skin’s color and texture.
Proper Application and Usage
Effective use of silicone gel for scar treatment relies on consistent and correct application. Ensure the scarred area is thoroughly clean and dry before applying the gel. Any excess cream or residue should be wiped off to allow the silicone to adhere properly.
Apply a very thin layer of the silicone gel directly onto the scar. It should be gently spread or rubbed with fingertips to ensure even coverage. Most silicone gels dry quickly, typically within 4-5 minutes, forming a transparent and flexible film. If the gel remains sticky, too much has been applied, and any excess should be removed. Silicone gel should be applied twice daily.
What to Expect During Treatment
When using silicone gel on older scars, managing expectations regarding the timeline for results is important. While some individuals may notice initial softening or texture changes within a few days to weeks, significant improvements become visible over a period of weeks to months. For older scars, a recommended treatment duration is at least 60 to 90 days, with some requiring consistent use for six months to a year or even longer for optimal outcomes.
Results can vary based on factors such as scar age, type, and individual skin characteristics. Minor side effects, such as mild irritation, redness, stinging, or temporary stickiness, can occur but are generally uncommon and often resolve with continued use or by ensuring the skin is completely dry before application. If persistent irritation occurs, discontinue use and seek advice from a healthcare professional.