Silicone and Sunscreen: Their Role in Scar Treatment

Scars are a natural part of the healing process, but for many, they can be a source of physical discomfort or emotional distress. Whether caused by surgery, injury or skin conditions such as acne, scars can vary in appearance and severity. Fortunately, there are effective treatment strategies, including the use of silicone-based products and sun protection, to help improve scar appearance and support healthy skin recovery.

Scarring is the body’s natural response to skin injury. When the dermis, or the deep layer of skin, is damaged, the body forms collagen fibers to repair the wound. This results in scar tissue, which has a different texture and quality than the surrounding skin. Some scars fade over time, while others may become raised (hypertrophic), sunken (atrophic), or discolored.

Silicone has been widely studied and recommended by dermatologists and plastic surgeons as a first-line treatment for scars, particularly hypertrophic scars and keloids.

Silicone sheets and gels work by creating a protective barrier over the scar that helps regulate the skin’s moisture balance and temperature. This barrier:

• Hydrates the scar tissue, preventing excessive collagen production that can cause raised scars
• Reduces tension on the scar site, which is important for minimizing scar elevation
• Acts as a semi-occlusive layer, allowing oxygen in while keeping water in, promoting a healing environment

Consistent use of silicone gel or silicone sheets for at least 12 hours a day over a period of 8 to 12 weeks can significantly flatten and fade scars. Silicone is generaly safe for most skin types, non-invasive, and easy to apply, making it a preferred option in both clinical and at-home scar management.

Combining silicone-based treatments with sun protection can enhance overall scar healing. Here’s how to use both effectively:

• Wait for absorption: If using silicone gel, allow it to fully dry before applying sunscreen.
• Layer carefully: If using silicone sheets, apply sunscreen to the surrounding area or use UV-protective clothing if the sheet covers the scar.
• Stay consistent: Use silicone treatment daily, and reapply sunscreen every two hours when outdoors.

While over-the-counter silicone products and sunscreens are effective for many, some scars may require additional interventions, such as laser therapy, steroid injections, or surgical revision. If you’re concerned about a scar’s appearance or healing process, consult a dermatologist or wound care specialist for personalized treatment options.

*This article is intended for informational purposes only and should not be substituted for medical advice. For medical questions and advice, it is always best to consult with your trained physician.

Sources: 

Mayo Foundation for Medical Education and Research. (2023b, July 13). Keloid Scar. Mayo Clinic. https://www.mayoclinic.org/diseases-conditions/keloid-scar/diagnosis-treatment/drc-20520902 

Mustoe, T. A. (2020b, December 8). Silicone gel for scar prevention. Textbook on Scar Management: State of the Art Management and Emerging Technologies [Internet]. https://www.ncbi.nlm.nih.gov/books/NBK586090/ 

Proper wound care: How to minimize a scar. American Academy of Dermatology. (n.d.-a). https://www.aad.org/public/everyday-care/injured-skin/burns/wound-care-minimize-scars 

Puri, N., & Talwar, A. (2009, July). The efficacy of silicone gel for the treatment of hypertrophic scars and keloids. Journal of cutaneous and aesthetic surgery. https://pmc.ncbi.nlm.nih.gov/articles/PMC2918339/ 

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