Body acne scars, especially on the back, chest, and shoulders, are treatable with a combination of topical products and professional procedures. The right approach depends on whether your scars are indented, raised, or flat dark marks left behind after breakouts. Most people dealing with body acne scars have a mix of all three, and each type responds to different treatments.
Identifying Your Scar Type
Before choosing a treatment, it helps to understand what you’re actually looking at. Body acne scars fall into three main categories:
- Atrophic (indented) scars look like small dents or pits in the skin. These form when the skin doesn’t produce enough collagen during healing. They can be narrow and deep, broad with sloping edges, or wide with sharp defined edges.
- Hypertrophic (raised) scars are thickened, firm bumps that sit above the skin’s surface. These are common on the chest, shoulders, and upper back, where the skin is thicker and tends to overproduce collagen during healing.
- Dark marks (post-inflammatory hyperpigmentation) are flat patches of discoloration, not true scars. They appear tan, brown, or dark brown and result from excess pigment deposited after inflammation. Epidermal dark marks can take months to years to fade on their own. Deeper discoloration, which looks blue-gray, can be permanent without treatment.
Many people mistake dark marks for permanent scars. The distinction matters because hyperpigmentation is generally easier and cheaper to treat than structural scarring.
Topical Treatments for Indented Scars
For mild indented scars on the body, topical products that promote cell turnover and collagen production can gradually improve skin texture over several months. Retinoids are the most well-studied option. Adapalene, available over the counter at 0.1% and by prescription at 0.3%, speeds up skin cell renewal and stimulates collagen remodeling beneath the surface. Apply it to scarred areas at night, starting every other day to let your skin adjust before moving to nightly use.
Chemical exfoliants like glycolic acid (typically in the 4 to 10% range for at-home products) help by dissolving the bonds between dead skin cells, smoothing the skin’s surface over time. Body lotions and washes containing glycolic or salicylic acid are widely available and easy to incorporate into a shower routine. Results from topical treatments alone are modest for deeper scars, but they can meaningfully improve the overall texture and tone of scarred skin, especially when used consistently for three to six months.
Treating Raised Scars
Raised scars on the body are stubborn and require a different strategy than indented ones. Silicone gel sheets are the first-line home treatment. They work by hydrating the scar tissue and creating gentle pressure that helps flatten the raised area over time. For best results, wear them 20 to 22 hours per day, removing them only to wash the sheet and the skin underneath. Scar remodeling can take up to a year, so consistency is essential. Self-adhesive silicone sheets designed for the chest and back are available without a prescription.
Silicone gel in tube form is an alternative for areas where sheets don’t adhere well, like the shoulders. It’s less studied than the sheets but more practical for irregular body contours. For raised scars that don’t respond to silicone, a dermatologist can inject them with corticosteroids to reduce thickness and flatten them over a series of visits.
Fading Dark Marks
Post-inflammatory hyperpigmentation responds well to ingredients that slow pigment production. Hydroquinone remains the most effective topical option, available over the counter at 2% in the United States and by prescription at higher concentrations up to 10%. It works by blocking the enzyme responsible for producing melanin. Apply it directly to dark spots and expect visible improvement within 8 to 12 weeks.
Several other ingredients are effective alternatives, particularly for people who prefer to avoid hydroquinone or need long-term maintenance:
- Azelaic acid at 15 to 20% reduces pigmentation and also treats active acne, making it a good dual-purpose option for body skin that’s still breaking out.
- Vitamin C at 5 to 10% concentrations interrupts melanin production and can be layered with other treatments.
- Niacinamide at 2 to 5% is gentle enough for sensitive skin and helps prevent pigment from reaching the skin’s surface.
- Kojic acid at 1 to 4% is often combined with glycolic acid or hydroquinone for enhanced results.
- Arbutin, particularly synthetic alpha-arbutin, inhibits pigment production and is well tolerated across skin tones.
Sun exposure darkens hyperpigmentation and can undo weeks of progress. If scarred areas are exposed to sunlight (shoulders, upper back in summer), applying sunscreen daily is just as important as any treatment product.
Professional Procedures
When topical treatments aren’t enough, professional procedures can deliver more dramatic improvement, especially for moderate to severe scarring.
Microneedling
Microneedling creates thousands of tiny punctures in the skin, triggering the body’s wound-healing response and stimulating new collagen production. A typical treatment plan involves four sessions spaced three to four weeks apart. In clinical studies, four sessions improved severe scars by two full grades on standardized scales in the majority of patients, with over 95% of participants showing at least one grade of improvement. Nearly one in five patients reported 75 to 100% improvement in their scars’ appearance.
Microneedling on the body can be performed on the back, chest, and shoulders. Sessions are done under local numbing cream, and recovery involves a few days of redness and sensitivity. The skin on your body is thicker than facial skin, so practitioners often use longer needle depths for trunk scars.
Laser Resurfacing
Laser treatments remove damaged surface skin and heat deeper layers to stimulate collagen remodeling. Fractional lasers treat a percentage of the skin at a time, leaving untreated areas that speed healing. This makes them practical for larger body areas like the back. The average cost per session is around $1,829, according to the American Society of Plastic Surgeons, and most people need two to five sessions depending on scar severity. Body skin typically requires more sessions than facial skin because it heals more slowly.
Subcision
For deep indented scars, subcision involves inserting a small needle beneath the scar to break up the fibrous bands pulling the skin downward. When combined with microneedling, this approach improves results beyond what either treatment achieves alone. It’s particularly useful for rolling scars on the back that create a wave-like texture.
Preventing New Scars
If you still have active breakouts on your body, preventing new scars is just as important as treating existing ones. The American Academy of Dermatology recommends treating acne as soon as it appears, since early treatment of mild acne can prevent the deeper, more inflammatory breakouts that cause scarring in the first place. Over-the-counter body washes containing benzoyl peroxide or salicylic acid are a practical starting point.
Never pick, pop, scratch, or squeeze body acne. Every time you do, you increase inflammation in the skin, and more inflammation means a higher likelihood of scarring and discoloration. Even touching or rubbing breakouts repeatedly, such as through friction from tight clothing or backpack straps, can worsen acne and increase scarring risk. If you develop deep, painful cysts on your back or chest, a dermatologist can treat them with targeted injections that reduce inflammation quickly, before scarring has a chance to develop.