1. Types of Acne Scars
Many people use “scarring” to describe any mark after a breakout. Dermatology separates them into a few categories:
Post-inflammatory erythema
Flat pink or red marks, common in lighter skin tones. More related to blood vessels than true scars. Often fade gradually over months.
Post-inflammatory hyperpigmentation
Brown or darker marks after acne, especially in deeper skin tones. Pigment, not holes in the skin. Sunscreen is critical here.
Indented (“atrophic”) scars
True texture changes – ice-pick, boxcar, rolling scars. These usually need in-clinic procedures to improve significantly.
2. Preventing New Scars
The most effective scar strategy is boring but powerful:
- Control active acne early: the fewer deep, inflamed spots you have, the fewer chances there are for scars.
- Do not pick: squeezing and digging increases the likelihood of dents and darker marks.
- Use sunscreen daily: UV exposure makes red and brown marks hang around longer and can deepen pigment changes.
3. What Topical Products Can and Can’t Do
At-home products can’t “fill in” deep scars, but they can help with colour and overall texture:
- Retinoids support collagen over time and smooth minor unevenness.
- Ingredients like azelaic acid and niacinamide can help with red/brown marks.
- Chemical exfoliants (AHA/BHA) refine texture when used carefully.
Combine any active routine with a strong barrier focus: gentle cleanser, moisturiser and sunscreen every single day.
4. In-Clinic Options Often Used for Scars
For true indented scars, professional treatments are usually needed. Common options include:
- Microneedling: creates controlled micro-injuries to stimulate collagen.
- Subcision: uses a needle to break up tethered scar tissue under the skin.
- Laser and light devices: various types to target texture and redness.
- Chemical peels: from light peels to deeper, specialist-only options.
These procedures carry risks and are not interchangeable. A qualified dermatologist or experienced skin doctor should assess which, if any, are appropriate for your skin type and scar pattern.
Don’t wait for scars to “get bad enough”
If you are already seeing dents or marks that last longer than a few months, it is worth talking to a professional early. Treating acne and protecting your skin now will always be easier than reversing years of damage later.