COSRX - Oil Free Ultra Moisturizing Lotion with Birch Sap (100ml)
This is a lightweight, hydrating daily moisturizer designed to calm irritation and replenish moisture without leaving a greasy residue. It is a cult favorite in the K-Beauty community, famously used to soothe skin after using strong active ingredients (like AHAs or BHAs).
Core Features & Benefits
- 70% Birch Sap Base: Instead of plain water, this formula uses 70.8% Birch Sap (Betula Platyphylla Japonica Juice), which mimics the skin's natural moisture factor to hydrate deeply and soothe inflammation.
- Truly Lightweight: It is designed to absorb almost instantly, leaving a fresh, satin finish rather than a heavy or sticky film.
- Soothing & Calming: Excellent for cooling down angry, red, or freshly exfoliated skin.
- Hygienic Packaging: Comes in a sleek pump bottle that keeps the product stable and makes dispensing sanitary.
Star Ingredients
- Birch Sap (Betula Platyphylla Japonica Juice): A nutrient-rich fluid containing amino acids, vitamins, and minerals that hydrates and calms the skin.
- Tea Tree Leaf Oil: Present in a small amount to help control sebum and fight inflammation (gives the product a very faint, fresh herbal scent).
- Glycerin & Betaine: Humectants that draw moisture into the skin to keep it plump.
Best For
- Oily & Combination Skin: The primary target audience. It provides necessary hydration without clogging pores or adding shine.
- Acne-Prone Skin: The "oil-free" formula prevents breakouts while the tea tree oil helps manage bacteria.
- Sensitive Skin: Useful for those who cannot tolerate heavy creams.
- Dry Skin (as a layer): For very dry skin, this works best as a hydrating serum layer underneath a heavier cream, rather than a standalone moisturizer.
Texture & Feel
- Consistency: A white, semi-translucent lotion that is slightly thicker than water but thinner than a cream.
- Finish: Non-greasy and matte-to-satin. It disappears into the skin within seconds.
How to Use
- Cleanse and tone your face.
- Apply your serums or chemical exfoliants (AHAs/BHAs).
- Pump a small amount of the lotion (1-2 pumps) and smooth it over your face and neck.
- AM: Follow with sunscreen.
- PM: Use as your final step or layer a sleeping mask over it if you need extra moisture.