Dr. Reju-All Advanced PDRN Calming Sun Serum is a lightweight Korean sunscreen serum that provides SPF 50+ PA++++ UV protection while helping soothe and hydrate the skin. Formulated with PDRN Solatrix, it supports skin elasticity, moisture retention and a more even-looking complexion while helping protect against the visible effects of sun exposure. The calming formula is hypoallergenic and tested for sensitive and acne-prone skin, making it an easy final step for everyday skincare.