Archive
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Every post on Scar Notes, newest first. Each one lists its sources at the end.
- skincare actives
Benzoyl Peroxide, Salicylic Acid and Adapalene: How the Main Acne Actives Differ
How the three main over-the-counter acne ingredients work, how irritating they are, how to combine them, and what FDA testing found about benzene in BP.
- adult acne
Adult Hormonal Acne in Women: Patterns, Causes and Treatment Options
Why acne can persist or start after 25, the jawline pattern linked to hormones, and how dermatologists use topicals, combined pills and spironolactone.
- acne scars
Acne Scar Treatments Compared: Subcision, Lasers, Microneedling, TCA CROSS and Fillers
A plain comparison of the main acne scar procedures: which scar types each suits, what published reviews show, typical session counts and recovery.
- acne marks
Red vs Brown Acne Marks: How to Tell PIE and PIH Apart
Red and brown marks left after acne have different causes, timelines and treatments. Learn how post-inflammatory erythema and hyperpigmentation differ.
- acne scars
Acne Scar Types: How Dermatologists Classify Them and Why It Matters
Ice pick, boxcar, rolling, hypertrophic and keloid acne scars form differently and respond to different treatments. Here is how dermatologists sort them.
