In addition to mild cleansing and moisturizing, sun protection is one of the three essential components of skin care. Why UVA protection is so important:
UV radiation is the largest extrinsic skin aging factor (photoaging). UVA rays penetrate deeper into the skin than UVB rays. In the dermis (deeper layer of skin), they cause DNA damage, inhibit immune cells and degenerate fibroblasts, which are responsible for collagen, elastin and hyaluronic acid synthesis. The consequences are dryness, impaired barrier function, loss of elasticity, wrinkles and lines, as well as rough and dull skin texture. Regular sun protection is the best way to prevent premature skin aging.
UVA rays can cause excessive and irregular pigmentation of the skin. Fresh skin caused by injuries or similar is particularly susceptible to pimple marks (PIH: post-inflammatory hyperpigmentation). During pregnancy, the skin is particularly sensitive and prone to hyperpigmentation. Therefore, be sure to pay attention to sun protection.
While it was once thought that only shorter-wave UVB rays caused sunburn and skin cancer, science now knows better. UVA rays are also involved. Therefore, a minimum UVA protection of 1/3 of the SPF is recommended in the EU today. The UVA booster exceeds this recommendation by 5 times. In addition, UV rays are often triggers for acne, rosacea and allergies.