Kiehls Better Screen UV Serum Facial Sunscreen SPF 50+ Travel Size 0.5oz NEW. aAdvanced lightweight sunscreen serum with Collagen Peptide is specifically formulated to protect against sun damage like sun spots and help visibly correct early signs of aging. Powered with UV filters to help shield against UVA and UVB, and Collagen Peptide to help correct the appearance of UV damage, our 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.