How do UVB Rays Affect the Skin?
Epidermis UVB rays do not penetrate as deep as UVA rays. They remain primarily at the epidermal level, and are particularly blocked by the stratum corneum. Because of this, it is important to strengthen the stratum corneum and have a strong skin barrier function. Exfoliation is the key to a strong stratum corneum and skin barrier function. UVB rays can also cause the stimulation of melanin in the epidermis, cause hyperpigmentation, and can stimulate hyperpigmented disorders such as melasma. In most cases, cosmetic procedures are effective to correct damage and hyperpigmentation in the epidermis, and are necessary to treat damage that has been done deeper in the dermis . Contributing Factors to UVR Damage Medications It is important to understand, that certain medications such as antibiotics can make the skin more sensitive to sunburn and sun damage. When using photosensitizing drugs, it is important to avoid the sun and use a physical sunblock ingredient such as zinc oxide to protect t
