Korean sunscreen: SPF, PA and the US label
Korean sunscreens are popular for light textures and elegant finishes. Here is how to read the labels, and what to keep in mind when buying one in the US.
Last updated November 3, 2026. General information, not medical advice.
SPF: protection against sunburn
SPF measures protection against UVB, the rays that cause sunburn. Higher numbers block slightly more UVB, but the gains get small at the top. Using enough sunscreen matters more than choosing between SPF 50 and a higher number.
PA: protection against UVA
UVA rays penetrate more deeply and contribute to skin aging. Korean and Japanese labels rate UVA protection with plus signs:
- PA+: some UVA protection
- PA++: moderate
- PA+++: high
- PA++++: very high, the top rating
The usual pairing on Korean sunscreens is SPF50+ PA++++. US labels use the phrase "Broad Spectrum" to show a product protects against both UVB and UVA.
Types of sunscreen
- Chemical (organic) filters absorb UV light. They tend to feel light and leave no white cast, which is why many Korean sunscreens use them.
- Mineral (physical) filters, such as zinc oxide and titanium dioxide, sit on the skin and reflect and scatter UV. Some people with sensitive skin prefer them. They can leave a white cast.
- Hybrid sunscreens combine both.
Gels, essences, creams and sticks are all common. The best one is the one you will actually wear every day.
Korean and US rules differ
In the US, the FDA regulates sunscreen as an over-the-counter drug and allows only certain UV filters. Some filters common in Asia and Europe are not approved for sale in the US. Because of this, brands sometimes make a separate US version of a sunscreen, and the ingredient list can differ from the Korean one. A product sold on a marketplace may be the Korean-market version. Check which version you are getting, and read the label on your box. Rules can change, so look at the FDA's website for the current position.
How to use it
- Use enough. Most people apply too little. Follow the directions on the product, and apply generously to your face, ears and neck.
- Reapply about every two hours when you're outdoors in strong sun, and after swimming or heavy sweating. Sticks, sprays and powders can make reapplying over makeup easier.
- Apply it last in your morning routine, after moisturizer. See our routine guide.
- Remove it at night with an oil or balm cleanser followed by a water-based one.
- Sunscreen is one part of sun protection. Shade, hats and clothing help too.
This guide is for general information only. It is not medical advice, and it does not recommend any product. For a history of skin cancer, a skin condition or a baby's skin, talk to a doctor or dermatologist.