Post-acne marks vs acne scars: they're not the same and the treatments are completely different
5 min read
The most common mistake people make when treating acne scars is not knowing which type they actually have. Post-acne marks (flat discoloration) and acne scars (textural changes) require entirely different treatments.
Post-acne marks — flat discoloration
PIH — brown or dark marks
Caused by excess melanin during inflammation. More pronounced on deeper skin tones. Treatable with niacinamide, azelaic acid, tranexamic acid, and SPF. Timeline: 3-12 months.
PIE — pink or red marks
Caused by dilated blood vessels. More common on lighter skin. Niacinamide helps but these often need time or professional treatments to fully resolve.
Acne scars — textural changes
These have texture. Topicals alone will not fix them.
- Ice pick scars — deep narrow pits. Need TCA cross or punch excision.
- Boxcar scars — wide defined edges. Respond to microneedling and subcision.
- Rolling scars — wavy texture. Subcision is most effective.
- Hypertrophic scars — raised. Treated with steroid injections or laser.
Routine for post-acne marks
Morning
Cleanser → vitamin C → niacinamide moisturizer → SPF 30+
Evening
Cleanser → azelaic acid or tranexamic acid → retinoid 2-3x per week → moisturizer
What not to do
- Don't pick — every pick extends the timeline by weeks
- Don't skip SPF — UV is the number one reason marks don't fade
- Don't expect overnight results — fading takes months
// bottom line
If it's flat, topicals will fade it. If it has texture, you need professional treatment. Most important: stop new acne from forming and wear SPF every single day.
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