What are UVB rays

Ultraviolet (UV) radiation from the sun is responsible for the adverse health effects of too much sun exposure on the human body. UVB light has a much smaller range than UVA with a wavelength of 290 nm to 320 nm. Although it's not as deeply skin-penetrating or omnipotent as UVA rays, UVB ... The sunlight that reaches the earth has ultraviolet A and ultraviolet B (UVA and UVB) rays. These ultraviolet rays are the main causes of damage to the skin ... Jun 26, 2024 ... Ultraviolet (UV) radiation comes from the sun and man-made sources like tanning beds. Learn more about UV rays and skin cancer risk here. Article Overview · UVA rays are longer than UVB rays and penetrate deeper into the skin, causing long-term damage like premature aging and wrinkles. · UVB rays ... SPF, which stands for “sun protection factor,” is a measurement of how well a sunscreen product protects your skin against UVB rays—the type of UV rays that can ... Phototherapy, also called light therapy, means treatment with a special kind of light, such as narrowband ultraviolet B (UVB) light used to treat eczema. Jun 11, 2010 ... It is true: ultraviolet (UV) light — a culprit behind sunburns, wrinkles and skin cancer — does offer benefits for some skin conditions. In a ... How Tanning Happens. The sun's rays contain two types of ultraviolet radiation that reach your skin: UVA and UVB. UVB radiation burns the upper layers of skin ( ... Aug 16, 2018 ... In sunscreen specifications, SPF only indicates protection from UVB rays which burn our skin. So how do we protect from UVA rays which age ...