COSRX Ultra-Light Invisible Sunscreen is a Korean chemical sunscreen with SPF50 and PA++++ protection against UVA and UVB rays. The serum-like formula absorbs quickly and leaves no white cast, so it looks invisible on all skin tones. Aloe leaf water, witch hazel water, niacinamide and tocopherol help hydrate, soothe and balance the skin while it protects. The texture is light, fresh and non-greasy, so it works well under makeup and in hot, humid weather. This 15 ml mini size is easy to carry and suits travel, gym bags and daily touch-ups, or a trial before buying the full size.