A rash appears around the mouth. It looks like acne, so it gets treated like acne — and it does not improve. Then a cortisone cream helps for a week, and everything gets worse when it stops. Perioral dermatitis is an inflammatory rash of the facial skin that most often affects women between the ages…
The serums all promise to “brighten” — but the labels read like a chemistry exam. Here’s what each of these skin brightening ingredients really does, and how solid the science behind it is. Thiamidol. Cysteamine. Kojic acid. Niacinamide. Malassezin. The labels promise the same thing — fewer dark spots, more even tone — but these…
In dermatology, there’s a phase where healing looks exactly like a breakout. Most people quit right there. You started a new retinoid two weeks ago, full of hope. Now your skin looks worse than before you began — more spots, more small bumps, and a creeping certainty that you’ve made everything worse. Before that expensive…
Most people wearing SPF 50 are getting closer to SPF 7 in real life. The problem isn’t the formula — it’s the dose. Here’s what dermatologists actually do differently.
For decades, dermatologists dismissed the link between diet and acne. The evidence has quietly made that position impossible to hold. Here’s what actually holds up.
Why does adult acne persist into your 30s and 40s? A dermatology-informed guide covering what’s actually happening beneath your skin, the four acne types, common myths, and treatments that work in 2026.