What Is Silicone Scar Gel? | Scars Explained

If you’re recovering from surgery, a burn, or a serious scrape, you’ve probably noticed the raised, discolored mark left behind. Silicone scar gel sits at the top of most dermatologists’ recommendations for managing those scars, and for good reason. Unlike lotions that simply moisturize, silicone gels create a breathable, waterproof layer over the scar that changes how the skin heals. Here’s what the science says, how to use it correctly, and whether it’s the right choice for your situation.

How Silicone Scar Gel Works

Silicone scar gel works by forming a thin, invisible protective film over the surface of a closed scar. This film mimics the natural barrier of healthy skin, trapping moisture in the scar tissue and helping to regulate collagen production. Over time, this process can soften, flatten, and lighten raised scars.

The FDA classifies these products as “silicone sheeting” or “silicone hydrogel for scar management” under regulation number 878.4025. The agency’s definition covers the management of closed hyperproliferative scars—the medical term for hypertrophic and keloid scars. The stated technical method is straightforward: the gel forms a protective film that helps maintain skin hydration.

That last point matters. A scar that stays hydrated is more elastic and less likely to become thick, tight, or itchy. Keeping the area moist also supports the skin’s natural repair process, which is why dermatologists often recommend silicone products over plain moisturizers.

What Silicone Scar Gel Can and Cannot Do

Being clear about expectations helps you use the product wisely. Silicone scar gel is a proven tool, but it has limits.

• Softens and flattens: It helps reduce the thickness and raised appearance of hypertrophic scars and keloids.
• Fades discoloration: Regular use can help red or dark scar tissue blend more closely with surrounding skin.
• Relieves discomfort: It can ease the itching and tightness that often accompany healing scars.

The critical limitation is that silicone gel only works on closed scars. The FDA’s definition explicitly covers closed hyperproliferative scars—it does not apply to open wounds. If a wound is still healing, scabbed, or has broken skin, silicone gel should not be applied. You’ll need to wait until the skin has fully closed before starting treatment.

Another honest note: silicone products generally work best on newer scars. Old, mature scars can improve with consistent use, but the results may be more modest than what you’d see on a scar treated early.

How To Use Silicone Scar Gel

Official labeling from the FDA’s DailyMed database instructs users to apply silicone scar gel twice a day—once in the morning and once before bed. The routine is simple:

1. Clean the scar area gently with mild soap and water, then pat it completely dry.
2. Squeeze a thin layer of gel directly onto the scar and spread it evenly so the scar is just covered.
3. Allow the gel to dry for about two to three minutes until it forms a clear, tacky film.
4. Repeat every twelve hours, keeping the treated area clean between applications.

A thin layer is all you need. Applying more than necessary doesn’t improve results—it just wastes the product and can leave a sticky residue. If you’re applying the gel to your face, be careful to avoid the eye area.

Consistency matters more than anything else with scar treatment. A scar needs sustained contact with the silicone film to respond. Skipping days or stopping after two weeks will undo most of your progress. Set a reminder on your phone if you need one.

Safety Considerations and When To See a Doctor

Silicone scar gel is considered safe for most people when used as directed. DailyMed labeling for these products includes standard cautions: “For external use only” and “Not for ophthalmic use.” Some labels also warn against direct contact with the eyes, lips, or mucous membranes, so keep the gel away from those areas.

One important note: some silicone scar gel products are sold as prescription-only or restricted to sale by or on the order of a licensed practitioner. Always check the label and buy from a reputable source.

If your scar is painful, rapidly growing, bleeding, or shows signs of infection, silicone gel isn’t the answer—see a dermatologist or your primary care doctor first. And if you have a history of problematic scarring or are planning surgery, talk to your surgeon before you invest in any scar product.

For anyone ready to explore their options, our roundup of the best cream for post surgery scars includes practical product comparisons to help you choose.