What is glass skin? The no-filter guide to Korea's most-copied finish

'Glass skin' is the Korean term for skin so hydrated, smooth and clear that it looks almost translucent — like a smooth pane of glass. It isn't filter magic. It's the visible result of a healthy barrier, deep hydration and consistent SPF over months.

What glass skin actually is

• Even skin tone — pigmentation and redness are minimal.
• Poreless-looking texture — pores are still there, just clean and unstretched.
• A dewy finish that comes from hydration, not oiliness.
• A soft internal glow rather than a highlighter shine.

The five pillars of glass skin

1. Gentle double cleansing — remove SPF, sebum and pollution without stripping.
2. Layered hydration — toner, essence, serum, moisturiser, all onto damp skin.
3. Barrier support — ceramides, panthenol, madecassoside, heartleaf, beta-glucan.
4. Weekly mild exfoliation — one PHA or low-strength BHA night per week.
5. Daily SPF 50 — protects the glow you're building.

A glass-skin routine

Morning

1. Low-pH gel or cream cleanser.
2. Hydrating toner — pat 2–3 layers into damp skin.
3. Essence rich in humectants and fermented extracts.
4. Niacinamide or Vitamin C serum for tone.
5. Lightweight moisturiser.
6. Broad-spectrum SPF 50.

Evening

1. Oil or balm cleanser.
2. Water-based low-pH cleanser.
3. Hydrating toner.
4. Essence + hyaluronic acid serum.
5. Peptide or PDRN ampoule.
6. Nourishing moisturiser or sleeping mask.

Explore Litsy's hydration heroes — essences, ampoules and glass-skin ready sunscreens — in the shop, with new K-beauty formulas landing seasonally.