Topical products that promise to fade acne scars abound. But how effective are these products? The American Academy of Dermatology, as well as Mayo Clinic experts, note that you may see only very mild reductions in acne scarring using over-the-counter products, so having realistic expectations is important before putting faith in a nonprescription treatment. Before you decide on a purchase, examine the product's label to see what active ingredients the anti-scar cream contains.
Shallow, Round Acne Scars
Slightly depressed, circular-shaped acne scars may improve slightly with products containing active ingredients that encourage new collagen growth. More important than the name brand is the active ingredient the product contains. The American Academy of Dermatology says to look for acne scar creams with the following ingredients: glycolic acid, retinol and vitamin C. However, before using a home microdermabrasion kit or "DIY" chemical peel, the AAD advises you to first consult with a dermatologist. When used improperly, these can make acne scars look worse.
Raised Acne Scars
Raised scars--hypertrophic scars and keloids--may flatten out slightly with constant application of a silicone-based product, notes the AAD. The AAD cites one study in which 34 percent of participants reported that their keloids were less noticeable when they used silicone gel for six months. Silicone can also reduce irritation and itching associated with raised scars, notes the AAD. However, silicone gels, creams and tapes must be used religiously for the product to take effect.
Discoloration From Acne
Acne can also result in pigment changes in the skin---dark spots of red or brown---that can linger for several months after lesions heal. This is known as postinflammatory hyperpigmentation, or PIH. Some over-the-counter bleaching products may be helpful. The AAD advises looking for a cream that contains hydroquinone. By law, over-the-counter products cannot contain more than 2 percent hydroquinone. Only a doctor can prescribe a stronger bleaching cream.
The Importance of Sunscreen
Those suffering from PIH may notice that the spots on their skin turn darker when exposed to sun. Wearing sunscreen is a requisite for those coping with red or brown spots. The AAD advises selecting a product with a sun protection factor of at least 30 and applying it to all areas of the skin exposed to the sun before going outdoors.
Prescription Topicals
For patients who want to stick with topical products, a dermatologist may prescribe stronger medications to apply to raised acne scars so that patients can experience better results. The AAD states that tretinoin may be put on keloids to assuage itching and reduce the scar's size. Alternately, a prescription corticosteroid may be prescribed. The AAD states that a combination of tretinoin and corticosteroid appears to be most effective in treating raised scars. These must be used routinely to achieve desired results. As with other topical acne scar products, these won't eliminate the scar but can make it less noticeable.
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