The COSRX Oil-Free Ultra-Moisturizing Lotion is a lightweight daily moisturizer made with 70% birch sap to hydrate, soothe, and calm the skin while maintaining a fresh, non-greasy finish. It is especially popular among oily, combination, and acne-prone skin types because of its fast-absorbing gel-lotion texture.

Main Ingredients

Birch Sap — helps hydrate and calm skin
Glycerin & Butylene Glycol — attract moisture to the skin
Panthenol & Allantoin — soothe and support the skin barrier
Sodium Hyaluronate — boosts hydration
Dimethicone — gives a smooth, silky finish

Texture & Finish

The moisturizer has a thin lotion-gel consistency that spreads easily and sinks in fast. Most users describe it as:

Lightweight
Non-sticky
Soft and smooth on the skin
Slightly dewy but not oily

Possible Downsides

May not be moisturizing enough for very dry skin
Contains lemon peel oil and tea tree oil, which can irritate sensitive skin
Some users dislike the herbal/citrus scent
Despite the name, it contains small amounts of essential oils

How to Use

Apply after toner and serum steps. Use 1–2 pumps across the face and follow with sunscreen during the day. It can also be layered under a heavier cream at night if your skin needs extra moisture.