Post-Acne Scarring

Post-inflammatory hyperpigmentation (PIH) is a flat discolouration of the skin, appearing as a dark mark where a blemish has healed. It is not structural and responds reasonably well to topical brightening actives and consistent SPF. True post-acne scarring involves physical textural changes in the skin caused by damage to the dermis. Atrophic scars (depressions) are the most common. Both can occur together, and treating the PIH component first often reveals what textural work remains underneath.

Topical skincare can improve the appearance of mild to moderate atrophic scars with consistent long-term use. Deeper ice-pick and boxcar scars respond poorly to topical treatment alone and are better addressed with in-clinic procedures such as microneedling, laser resurfacing, subcision, or TCA cross. Skincare is most effective as a maintenance and enhancement layer alongside professional treatment.

PIH typically begins to fade with consistent brightening actives and SPF within 2 to 4 months, though some deeper marks take longer. Textural improvement from retinoids and AHAs is a slower process, with visible changes typically beginning at 3 to 6 months and continuing to improve over a year or more of consistent use.

Yes, significantly. Manually squeezing or picking blemishes pushes bacteria deeper into the follicle, increases inflammation, and causes additional trauma to the surrounding tissue. This worsens both the likelihood of atrophic scarring and the intensity of PIH. Treating active acne effectively and promptly is the most important factor in preventing scarring.

For moderate to severe atrophic scarring, yes. Microneedling creates controlled micro-injuries in the dermis that stimulate collagen remodelling. A course of professional microneedling combined with a retinoid and vitamin C maintenance routine produces better outcomes for textural scarring than topical treatment alone. At-home dermarollers are less effective and carry a higher risk of infection and uneven results.