What It Is:A lightweight sunscreen serum with Collagen Peptide that helps protect against sun damage and helps visibly correct early signs of aging.What It'S For:Suitable for all skin types, including oily and acne-prone skin.What It Does:Kiehl's lightweight sunscreen serum with Collagen Peptide is specifically formulated to protect against sun damage and help visibly correct early signs of aging. Powered with advanced Uv filters to help shield against Uva and Uvb, and Collagen Peptide to help correct visible signs of Uv damage, this Spf serum with an invisible finish works to boost skin radiance and visibly improve skin tone and texture, while blending seamlessly across multiple skin tones.- Helps protect against Uv damage (when used as directed)- Helps correct visible signs of aging like tone & texture- Clinically demonstrated Spf 50+- Helps boost skin's radiance- Invisible finish across multiple skin tones- Layers seamlessly under makeupKey Ingredients:- Spf 50+ Uva/Uvb provides advanced Uv filters to protect skin against Uv damage.- Collagen Peptide works to visibly correct signs of Uv damage such as tone and texture.How To Use It:Apply generously as the last step in your skincare routine. Wait 15 mins before Uv exposure. Re-apply every 2 hours.Clinical Results*:- 94% agree skin felt smoother- 89% agree skin looks more radiant- 87% agree skin tone looks more even*Results based on a consumer perception study after 4 weeks of use.