The Hidden Science Behind What Causes Hyperpigmentation
Dark patches on the skin aren’t just cosmetic concerns—they’re biological signals. Whether it’s the lingering shadow of a pimple, the uneven tone from sun exposure, or the stubborn discoloration after an injury, what causes hyperpigmentation is a puzzle of genetics, inflammation, and external stressors. The skin’s response isn’t random; it’s a precise, if sometimes overzealous, […]