Essences & Serums

Korean essence vs serum: what each does, and do you need both?

Essence and serum sit on the same treatment step, at different strengths. Here's what each does, whether you need both, and how to choose the one Korean active that suits your skin.

Korean skincare for dark spots and hyperpigmentation

Korea treats an even, luminous tone as the point of a routine, and builds it with gentle brighteners you can use every day. Here's what fades dark spots, and why sun protection does most of the work.

Korean glass skin: what it is, and how to get closer to it

Glass skin — yuri pibu in Korean — is the name for a smooth, lit-from-within complexion. This is what moves the look, what's fixed by genetics and light, and the hydration doing most of the work.

Niacinamide: the quiet all-rounder in your Korean routine

Niacinamide turns up in Korean toners, essences and exfoliants as a supporting player, a few lines down the ingredient list. Here's what this form of vitamin B3 does for skin, and the actives it sits happily beside.

What Korean snail mucin does, and how to use it in a routine

Snail secretion filtrate is the ingredient Korean brands like COSRX turned into a staple. Here's what it does for skin, what the evidence behind it supports, and how to layer it so dry skin holds the extra hydration.