COSRX
COSRX - Oil-Free Ultra-Moisturizing Lotion with Birch Sap 100ml
COSRX - Oil-Free Ultra-Moisturizing Lotion with Birch Sap 100ml
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The Oil-Free Daily Moisturizer Built on Birch Sap
COSRX Oil-Free Ultra-Moisturizing Lotion swaps plain water for 70% willow bark (birch sap) water — a vitamin- and antioxidant-rich natural base that calms and nourishes while it hydrates. The weightless, truly oil-free formula absorbs in seconds and leaves zero greasy residue.
That texture is exactly why this lotion became a COSRX classic: oily and combination skin finally get real moisture without shine or heaviness, while dry skin gets a clean base layer that plays well under richer creams, sunscreen and makeup.
Key Benefits
✔ 70% birch sap: calming, vitamin-rich hydration
✔ Genuinely oil-free — zero greasy film
✔ Fast-absorbing, weightless texture
✔ Soothes irritated, stressed skin
✔ Layers cleanly under SPF and makeup, day and night
Who Is It For?
Oily and combination skin craving shine-free moisture — and any skin type wanting a light, reliable everyday staple.
How to Use
After toner or serum, apply a moderate amount morning and evening. Oily skin: use alone. Dry skin: seal with a richer cream on top.
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Ingredients
Willow bark water (birch sap) 70% — calming, vitamin-rich hydration
Oil-free moisturizing base — zero greasy residue
Antioxidant botanicals — daily skin support
How to Use
Absorbs fast with no greasy film — day and night friendly.
Oily or combination skin: use alone; dry skin: layer under a richer cream.

Frequently Asked Questions
Is the lotion really oil-free?
Yes — no added oils and zero greasy residue, which is exactly why oily and combination skin love it.
Can dry skin use it?
Yes — as a light base layer; very dry skin can seal it with a richer cream on top.
What does birch sap do in a moisturizer?
70% willow bark (birch sap) water replaces plain water with vitamin- and antioxidant-rich, calming hydration.
Morning or night?
Both — it absorbs fast and layers cleanly under sunscreen and makeup.