Jay Nguyen • Acne Specialist 🇨🇦 🇻🇳 on Instagram: "Closed comedones = the tiny, skin coloured bumps that make your skin look rough and congested. They form when oil + dead skin get trapped under a thin layer of skin, so the pore stays closed. That’s why they don’t pop, don’t have a “head,” and often feel like stubborn texture. Why they happen: • buildup of dead skin • heavy or comedogenic products • over-exfoliating (yes, too much!) • hormonal oil production • not cleansing properly • weakene

The Chemical So Unstable It Can Explode On Contact