Silicone-based products are the most consistently supported treatment for fading scars at home, outperforming most other over-the-counter options in clinical trials. But the best approach depends on whether your scar is raised, indented, or just discolored, and how old it is. A scar takes 6 to 18 months to reach its final appearance, and the treatments you use during that window matter more than what you try afterward.
Why Scar Type Matters
Not all scars respond to the same treatments. Raised scars (hypertrophic scars and keloids) involve an overproduction of collagen that pushes the skin upward. Indented scars, common after acne or chickenpox, happen when the skin loses underlying tissue and can’t rebuild a smooth surface. Flat discolored scars, often called post-inflammatory hyperpigmentation, aren’t really texture problems at all. They’re patches where excess pigment got deposited during healing.
A product that flattens a raised scar won’t fill in a pitted one, and a brightening serum that fades dark marks won’t do much for texture. Knowing which type you’re dealing with is the first step toward picking something that actually works.
Silicone: The Strongest OTC Evidence
Silicone gel and silicone sheets are the gold standard for scar treatment at home, particularly for raised or red scars. They work by trapping moisture against the scar surface, which influences how collagen remodels underneath. A systematic review of randomized controlled trials found that both silicone gel and silicone sheets outperformed placebo across all measured parameters for hypertrophic scars, improving thickness, stiffness, and surface irregularity. Improvements in scar thickness were visible as early as two weeks.
One common question is whether sheets or gel work better. The research consistently shows no significant difference between the two forms. Sheets can be awkward on visible areas like the face or joints, so gel is often more practical for daily use. Either way, the key is consistent application over weeks to months.
Onion Extract and Vitamin E: Popular but Overhyped
Onion extract is the active ingredient in some of the most recognizable scar products on pharmacy shelves. It does improve scars compared to doing nothing. But a meta-analysis of randomized controlled trials found that onion extract gel performed no better than petroleum jelly or silicone when compared head-to-head. One study actually concluded it was inferior to silicone gel and silicone sheets. The one bright spot: onion extract combined with silicone gel did outperform silicone sheets alone, suggesting the combination has some added value.
Vitamin E, despite decades of popularity, performs even worse. A clinical study found that in 90% of cases, topical vitamin E either had no effect on scars or made them look worse. One in three patients developed contact dermatitis from it. There is no clinical support for rubbing vitamin E oil on a scar, and dermatologists generally discourage it.
Retinoids for Texture and Dark Marks
Prescription retinoids are one of the few topical treatments that can meaningfully improve both scar texture and discoloration. They speed up skin cell turnover and stimulate collagen production in the deeper layers of skin. In a large study, a newer retinoid called trifarotene reduced atrophic (indented) acne scar counts by 55% over 24 weeks, compared to 30% in the placebo group. Another retinoid, adapalene combined with benzoyl peroxide, reduced scar counts by about 22% at 24 weeks and 27% at 48 weeks.
For dark marks specifically, tretinoin at a 0.1% concentration lightened post-inflammatory hyperpigmentation in 92% of patients after 40 weeks of daily use, compared to 57% using a vehicle cream alone. Tazarotene similarly reduced the intensity and area of hyperpigmentation in darker-skinned patients over 18 weeks. These results require patience and consistency, and retinoids can cause irritation, peeling, and sun sensitivity while your skin adjusts. Over-the-counter retinol is a milder option but produces slower, less dramatic results.
Brightening Agents for Discolored Scars
If your scar is flat but dark, the issue is excess melanin rather than abnormal collagen. Topical tranexamic acid, available in 2% to 5% concentrations, has emerged as an effective and well-tolerated option. Visible lightening typically begins within 4 to 8 weeks of twice-daily application. It works by blocking the signals that tell pigment-producing cells to go into overdrive. It’s particularly appealing because it rarely causes irritation, unlike some older lightening agents.
Azelaic acid at 20% performs comparably to tranexamic acid for post-acne dark spots over a 12-week period, though tranexamic acid tends to be better tolerated in the first month. Both are solid choices for fading pigmentation without the irritation risk of retinoids.
Sunscreen: The Easiest Step People Skip
UV exposure is one of the fastest ways to darken a healing scar. When UV light hits inflamed or healing skin, it triggers melanocytes to produce extra pigment, turning what might have been a faint pink mark into a stubborn brown one. This is especially pronounced in medium to dark skin tones, where post-inflammatory hyperpigmentation is already more common.
You should apply sunscreen with at least SPF 30 and broad-spectrum UVA/UVB protection to any healing scar as soon as the wound is fully closed. For lighter skin, SPF 50+ offers better protection. This matters most while the scar is still pink or red and actively changing, which can last up to 18 months. No topical scar treatment will work well if you’re simultaneously letting UV light darken the area.
Microneedling for Texture
Microneedling creates thousands of tiny punctures in scar tissue, triggering a controlled wound-healing response that produces new collagen. It’s one of the most effective options for indented scars, where the goal is to rebuild lost tissue volume. For thicker raised scars, practitioners use deeper needle depths (1.5 to 2.5 mm), while shallower settings (0.25 to 1 mm) suit milder texture concerns.
Results take time. Studies show statistically significant improvements in scar redness and flexibility at three months, with texture improvements continuing to develop over 6 to 12 months. Most treatment plans involve three or more sessions spaced about a month apart. Professional microneedling with a motorized pen device produces more consistent results than at-home dermarollers, which use shorter needles and less controlled pressure.
Laser Treatments for Stubborn Scars
When topical products and microneedling aren’t enough, laser treatments offer the most dramatic improvements. Two main categories exist: ablative fractional lasers (like CO2 and erbium) that vaporize tiny columns of scar tissue to trigger deep remodeling, and pulsed dye lasers that target redness by collapsing the blood vessels feeding a scar’s color.
A systematic review found that ablative fractional lasers achieved about 57% improvement in scar scores, while pulsed dye lasers achieved about 49%. Both required an average of 3 to 4 sessions. The most interesting finding was that combining both laser types produced better results than either alone, and required only about 1.5 sessions on average. If your scar is both raised and red, a combination approach may get you further, faster.
Timing Your Treatment
A fresh scar reaches its full structural strength at about six weeks, but its appearance keeps evolving for 6 to 18 months. During this window, the scar gradually softens and fades from pink or red toward a color closer to your surrounding skin. This is the period when topical treatments like silicone, retinoids, and sunscreen have the most impact, because the tissue is still actively remodeling.
Gentle scar massage several times a day, with or without moisturizer, also helps during this phase by breaking up collagen fibers and improving flexibility. If a scar is still prominently pink or raised after 12 to 18 months, that’s the point where professional treatments like lasers or microneedling become worth considering. Most practitioners prefer to wait until a scar has fully matured before attempting revision, since many scars improve substantially on their own with basic care during that first year.
If at any point a scar becomes raised, rubbery, and starts growing beyond the borders of the original wound, that may indicate a keloid rather than a normal healing process, which requires a different treatment approach.