Glass skin: do the LED devices promising perfect skin really work?

Hailey Bieber, Rosalía and dozens of celebrities popularized on social media a practice promising plump, even skin: a sort of wand with LED light said to grant the so-called “glass skin”. But what are these devices and how do they really work?

The trend that does not stop

“Glass skin,” born in South Korea, stopped being a passing fad to become a goal shared by millions of consumers seeking to improve their skin without invasive procedures.

What the evidence says

LED light therapy has scientific support in professional settings: certain wavelengths stimulate collagen and reduce inflammation. However, home devices have lower power than those used in clinics, so results are slower and subtler. Specialists recommend consistency, sun protection and realistic expectations: no gadget replaces rest, hydration and a good cleansing routine.

The key figure

A multi-million trend. The “glass skin” business grows, but perfect skin still depends on the basics: consistency and realism.