Silicone gel and silicone sheets are the best-supported nonprescription scar creams, forming a moisture-retaining barrier that softens raised surgical scars over roughly 3 to 6 months.
A raised, red, itching scar after surgery has a topical route that actually holds up to clinical scrutiny. The term “scar cream” covers everything from drugstore gels to prescription products, yet only medical-grade silicone carries consistent clinical backing — and it works by forming a protective barrier, not by dissolving scar tissue. That distinction matters because it tells you which product to buy, how long to commit, and when to call your surgeon instead.
What Makes Silicone Different From Other Scar Creams
Silicone is the only nonprescription topical consistently recommended for surgical scars, and it does not erase the scar — it reduces its appearance.
Silicone acts as a protective layer over healed tissue that helps the scar retain moisture and hydrate. Guidance from the American Academy of Dermatology and UK health-system scar care protocols describes the same result set: reduced redness, and less scar height, hardness, texture, itching, discomfort, and stiffness. Silicone suits raised or developing scars, including hypertrophic scars and keloids, and may help prevent a raised scar after an operation.
Clinical guidance generally favors silicone sheets over silicone ointment or gel, though both are used. Lipid-based creams, vitamin E oils, and onion extract products get far less backing in comparison — vitamin E in particular is known to cause irritation in some people, which can aggravate a fresh scar rather than calm it.
How to Apply Silicone Gel and Sheets Correctly
Silicone only goes on fully healed skin, never over open wounds, scabs, sutures, or weeping tissue — and the amount used matters more than most people expect.
Silicone gel:
- Confirm the incision is completely closed and dry.
- Clean the scar and let it dry, applying no other skin products underneath.
- Spread a very thin, transparent film. If the gel takes longer than about 4–10 minutes to dry, you used too much.
- Let it dry before clothing, cosmetics, or sunscreen — once set, sunblock or makeup can go over it.
- Reapply 1–3 times daily per the product’s directions; waterproof gel wears off and needs refreshing.
Silicone sheets: cut a piece slightly larger than the scar, peel the backing, and apply the gel side without stretching. Build wear time gradually — one hour on day one, two on day two, and onward toward at least 12 and up to 23 hours daily as tolerated. Remove the sheet at least once a day to wash the skin and the sheet with lukewarm water and mild, fragrance-free soap, then pat dry.
You’ll know the routine is working when the gel dries tack-free within minutes and the sheet lifts off cleanly without pulling the skin.
How Long Scar Treatment Actually Takes
Plan on about 3 months of daily use as the starting treatment period, and up to 6 months when keloid prevention is the goal.
An initial 90-day course is commonly advised, with longer use sometimes recommended depending on how the scar looks and responds. The American Academy of Dermatology notes daily silicone may be needed for roughly 6 months to help prevent keloids. Consistency is where most routines fail — a product used twice a week for a year does less than one used daily for three months.
Reusable sheets last a limited stretch. One NHS source reports properly maintained sheets may last 6–8 weeks, so replace them per their product instructions rather than stretching a worn sheet past its usefulness. For readers ready to compare options, this roundup of the best cream for surgical scars covers tested picks.
When to Stop and Call Your Surgeon
Redness, itching, scaling, a rash, pain, or fluid leakage means stop use, wash the area, and reassess before restarting.
Other reasons to pause: keep silicone away from the eyes, ears, nostrils, and mucous membranes, and never apply it over eczema, psoriasis, or other skin disease without professional advice. Silicone gel can stain clothing if not fully dry, so gauze over the top helps protect fabric. Silicone therapy supports routine wound care — moisturizing, massage where your clinician advises it, pressure therapy — rather than replacing surgical follow-up. The NHS guidance for silicone gel specifically notes not to massage with the gel itself.
A scar that becomes increasingly painful, opens, drains, or shows signs of infection needs clinical assessment, not another layer of cream.
Common Questions
Can I start silicone gel before my stitches come out?
No. Silicone must go only on fully healed, closed skin. Applying it over sutures, scabs, or weeping tissue traps moisture and can worsen irritation or infection risk. Wait until your surgeon confirms the incision is completely healed, then begin a thin film.
Do silicone sheets work better than silicone gel?
Clinical guidance generally favors sheets over ointment or gel, though both are used successfully. Sheets stay put for long wear periods and protect the scar from friction; gel suits curved or hard-to-cover areas. The bigger factor for most people is consistent daily use over months, not which form they choose.
Will silicone cream make my scar disappear?
No. Silicone improves appearance and comfort — less redness, height, hardness, itching, and stiffness — but it does not erase a scar. Realistic expectations matter, because a scar that fades and flattens over a few months is a success, not a failure to find a stronger product.
Sources
- American Academy of Dermatology. “Scars: Treatment and Diagnosis” Supports silicone as the preferred nonprescription topical and the 6-month keloid prevention figure.
- Great Ormond Street Hospital. “How Do I Take Care of My Scars After Surgery?” Supports sheet wear scheduling, daily cleaning, and the 3-month treatment period.
- Royal Berkshire NHS Foundation Trust. “Topical Silicone Gel” (patient guidance) Supports gel application technique, drying time, and the instruction not to massage with the gel.