The Round Lab Birch Juice Moisturizing Sun Cream SPF50+ PA++++ is a chemical sunscreen that offers protection against both UVA- and UVB rays.
Since this sunscreen is rich in hyaluronic acid, it also doubles as a moisturizer. One of the most important factors of aging and the development of hyperpigmentation and melasma is (excessive) exposure of the sun.
Round Lab seperates three kinds of uv rays:
UVA (UVA1 has a reach off 340-400 naometer and UVA2 has a reach of 320 en 340 nanometer)
UVB (320-280 nm)
UVC (280-100 nm).
UVC is blocked by the ozone layer, so humans are not exposed to rays under 280 nm.
UV Filters: * Uvinal A plus (320-400 nm), Uvinul T 150 (280-320nm), Tinosorb-M (280-400 nm), Iscotrizinol (UVA2-UVB).
