Scroll TikTok for five minutes and you'll find a hundred glow-up routines — most of them a wall of serums, tools and ten-step evenings. But the routines that actually last tend to be simpler, and they share one idea: they work from the outside and the inside. Skincare looks after the surface; nutrition supports what's[…]

"Glass skin" — that lit-from-within, almost translucent glow — has gone from Korean beauty term to global obsession, and UK feeds are full of it. Serums and ten-step routines get most of the attention, but there's a quieter half of the story that skincare fans increasingly talk about: what's going on beneath the surface. Because[…]