What it is
COSRX Ultra-Light Invisible Sunscreen is a 50ml SPF50 PA++++ sunscreen for daily UV protection. COSRX describes the formula as light, fast-absorbing, non-greasy and transparent on the skin, with no white cast.
Why choose it
- Texture is the reason to consider it: a lighter, faster-absorbing finish can make daily sunscreen easier to use consistently when heavier formulas are the problem.
- No-white-cast positioning: COSRX describes it as invisible across skin tones.
- Hydrating support is already in the formula: aloe leaf water, sodium hyaluronate, niacinamide and tocopherol are included alongside the UV filters.
If you already have a sunscreen you apply comfortably and consistently, you do not need another one for the same job.
How to use
Apply the sunscreen before sun exposure. COSRX directs frequent reapplication to maintain protection, especially after perspiring, swimming or towelling.
Simpli Start-Safe: sunscreen is the final morning skincare step. Keep a moisturiser underneath only when your skin needs it, and do not reduce the amount of sunscreen just to make the finish feel lighter.
Ingredients
Key formula notes: the current formula uses a blend of UV filters and also contains aloe leaf water, niacinamide, witch hazel leaf water, tocopherol, sodium hyaluronate and allantoin.
Full ingredient list
Aloe Barbadensis Leaf Water, Diethylhexyl Succinate, Propanediol, Aqua/Water, Drometrizole Trisiloxane, Ethylhexyl Triazone, Niacinamide, Diethylamino Hydroxybenzoyl Hexyl Benzoate, Terephthalylidene Dicamphor Sulfonic Acid, 1,2-Hexanediol, Behenyl Alcohol, Methyl Trimethicone, Sodium Polyacryloyldimethyl Taurate, Hamamelis Virginiana (Witch Hazel) Leaf Water, Tromethamine, Polyacrylate Crosspolymer-6, Arachidyl Alcohol, Caprylyl Glycol, Ethylhexylglycerin, Arachidyl Glucoside, Sodium Metaphosphate, Adenosine, Tocopherol, Sodium Hyaluronate, Allantoin, Citric Acid, Sodium Benzoate, Potassium Sorbate.
Common questions
Does it leave a white cast?
COSRX describes the sunscreen as transparent, invisible across skin tones and non-white-cast. The exact finish can still vary with the amount applied and the products underneath.
How often should I reapply?
COSRX says to reapply frequently, especially after perspiring, swimming or towelling.
Can it replace moisturiser?
That depends on how your skin feels. If the sunscreen is comfortable on its own, a separate moisturiser is not automatically required; if your skin still feels dry, keep a suitable moisturiser underneath.
