Scar tissue heals through a natural remodeling process that can take months to years, but you can significantly improve the outcome with the right combination of topical care, nutrition, physical therapy, and sun protection. The key is matching your approach to the stage of healing and the type of scar you’re dealing with.
How Scars Form and Mature
Every scar begins with inflammation. Your body rushes to close the wound gap, producing collagen fibers, new blood vessels, and nerve endings. The result is an immature scar that looks red, feels hard, and may be raised or painful. Under normal conditions, this immature scar enters a remodeling phase over several months, during which inflammation gradually decreases, excess collagen breaks down, and blood vessel density drops. The scar softens, flattens, and fades.
When this remodeling phase stalls or goes into overdrive, you get problem scars. Hypertrophic scars stay raised and thick within the boundaries of the original wound. Keloids grow beyond the wound edges and keep producing collagen. Atrophic scars, like acne pits, form when the body produces too little collagen to fill the wound. Each type responds to different interventions, so identifying what you’re working with matters before choosing a treatment strategy.
Silicone Gel and Sheeting
Silicone is the most studied topical treatment for raised scars. Clinical research shows it can reduce scar texture by 86%, improve color by 84%, and decrease scar height by 68%. It works by increasing hydration in the outer skin layer, which signals the collagen-producing cells underneath to slow down. This rebalances the cycle of collagen production and breakdown that gets disrupted in raised scars.
Silicone also creates a protective barrier that keeps bacteria out. Bacterial presence can trigger excess collagen production, so this barrier effect contributes to flatter, softer scars over time. Both silicone gel (applied like a cream) and silicone sheets (worn over the scar) are available over the counter. Most protocols call for consistent daily use over weeks to months. Silicone also reduces itching and discomfort, which is a practical bonus since scratching or irritating a healing scar can worsen the outcome.
Scar Massage and Physical Therapy
Manual scar therapy uses pulling, stretching, and pressure to help collagen fibers in scar tissue become more organized and aligned. This improves pliability, reduces thickness, smooths the surface, and can decrease pain and itching. Techniques include direct massage, skin rolling, cupping, myofascial release, and instrument-assisted mobilization.
Timing and intensity matter. During the first three weeks after wound closure (the proliferation phase), stimulation should be gentle, staying within the first point of tissue resistance. Once the scar enters the remodeling phase, you can apply more pressure, though never past the point where the tissue resists strongly. Clinical protocols that show measurable improvement typically involve 30-minute sessions, two to three times per week, for at least 8 weeks. Shorter protocols (5 minutes, three times weekly for 12 weeks) have not shown lasting benefit, suggesting that session duration matters more than simply doing something regularly.
Nutrition for Collagen Production
Your body needs specific raw materials to build and remodel collagen. Vitamin C is the most important, acting as a required helper molecule for the enzymes that fold collagen into its stable structure. Without adequate vitamin C, collagen synthesis slows and healing stalls. Preclinical studies show it accelerates healing and increases production of the primary structural collagen in skin.
Clinical evidence suggests that even modest supplementation helps. Doses as low as 60 mg per day (roughly the amount in one orange) have shown measurable increases in healing biomarkers after injury. Study doses have ranged up to 500 mg twice daily, but the lower end appears effective for most people. Zinc and protein intake also support collagen production, since collagen is a protein and zinc plays a role in cell division during wound repair. If your diet is already rich in fruits, vegetables, and lean protein, you may not need supplements, but falling short on any of these nutrients can visibly slow scar maturation.
Sun Protection During Healing
New and healing scars are highly sensitive to ultraviolet radiation. Sun exposure during the remodeling phase can cause permanent pigment changes, leaving the scar noticeably darker or lighter than surrounding skin. This sensitivity lasts at least a full year after injury, and possibly longer.
Use a broad-spectrum sunscreen with SPF 30 or higher on any exposed scar tissue. The sunscreen should protect against both UV-A and UV-B rays and be water-resistant. Reapply according to the product directions, especially after sweating or water exposure. For scars on or near the lips, use a lip balm with SPF 30 or higher. Physical coverage with clothing or silicone sheets also works. The goal is consistent protection for at least 12 months post-injury.
Pressure Garments for Burn Scars
Pressure therapy is a standard treatment for scars from burns or skin grafts. Custom-fitted garments apply steady pressure (typically 15 to 25 mmHg) to suppress excess collagen production and encourage the scar to flatten and soften. Patients are typically instructed to wear them 23 hours per day, removing them only for bathing, and to continue for one to two years.
That said, wearing a pressure garment for even 8 hours daily produces significantly better scar outcomes compared to no treatment at all. This is relevant if full-day wear isn’t practical due to comfort, heat, or lifestyle factors. More hours produce better results, but partial compliance still helps.
Steroid Injections for Keloids and Raised Scars
For keloids and thick hypertrophic scars that don’t respond to silicone or pressure, steroid injections can flatten the tissue. A doctor injects a small amount of corticosteroid directly into the scar, starting at the border where the scar meets normal skin. Once the tissue softens, later injections target the harder center. Sessions are spaced about four weeks apart and repeated until the scar flattens. This approach works by suppressing the overactive collagen production that keeps the scar raised.
Laser Treatments for Deeper Scars
Fractional laser resurfacing creates thousands of tiny channels in scar tissue, triggering a controlled wound-healing response that produces new, more organized collagen. For atrophic scars (pitted or indented scars, commonly from acne), a series of four to six treatments spaced about a month apart can improve scar depth and appearance by up to 50%. Some studies report scar depth improvements of nearly 67% in patients with moderate to severe scarring.
Results develop gradually over months as new collagen fills in. Six months after completing treatment, patients typically see 25% to 50% improvement in scar smoothness and volume. Laser therapy works for both indented and raised scars, though the settings and approach differ. Multiple sessions are always required, and results vary based on skin type, scar severity, and scar age.
Treatments for Indented or Pitted Scars
Atrophic scars need the opposite of what raised scars need. Instead of reducing collagen, the goal is stimulating new collagen to fill in the depression. Two effective approaches are microneedling and subcision, both of which can be combined with platelet-rich plasma (a concentrated portion of your own blood that contains growth factors).
In a clinical study of 50 patients, both microneedling with platelet-rich plasma and subcision with platelet-rich plasma produced significant improvement. With microneedling, 70% of patients achieved “very good” improvement and 20% achieved “excellent” results. Subcision produced similar overall outcomes, with 50% showing very good improvement and 30% reaching excellent improvement. Both approaches were equally effective overall, though microneedling had fewer side effects. For deep, tethered scars (where the skin is pulled down by fibrous bands underneath), subcision may offer an advantage because it physically releases those bands.
Combining Approaches for Best Results
Scar healing responds best to a layered strategy rather than any single treatment. For a raised scar from surgery or injury, a practical combination might include silicone gel applied daily, regular massage once the wound is fully closed, consistent sun protection, and adequate vitamin C intake. For scars that remain thick or symptomatic after several months of home care, adding professional treatments like steroid injections or laser therapy can push the remodeling further.
For indented scars, home care alone rarely fills in the tissue. Professional treatments like microneedling or laser resurfacing form the backbone, while nutrition and sun protection support the healing between sessions. Regardless of scar type, the remodeling phase is your window of opportunity. Scars are most responsive to treatment in the first one to two years, when collagen turnover is still active. Starting early and staying consistent with whichever approach you choose gives you the best chance of a flatter, softer, less visible scar.