Perimenopause itchy skin affects up to 64% of women — yet almost nobody warns you it's coming. When estrogen declines, the skin loses its collagen scaffolding, its hyaluronic acid stores, and its natural oil barrier all at once. The result is chronic pruritus: dry, sensitised, barrier-broken skin that signals itch to your brain. This guide explains the exact biology, where the itch shows up, why it worsens at night, and which evidence-backed approaches — from ceramide moistur