1 The highest monthly average temperature in Lake Las Vegas for July is 95 degrees. 2  The lowest monthly average temperature in Lake Las Vegas for December is 44 degrees.  The most monthly precipitation in Lake Las Vegas occurs in October with 0.5 inches.
Phototoxicity, also called photoirritation, is a chemically induced skin irritation, requiring light, that does not involve the immune system.It is a type of photosensitivity.hototoxicity, also called photoirritation, is a chemically induced skin irritation, requiring light, that does not involve the immune system.
Photoaging or photoageing (also known as dermatoheliosis) is a term used for the characteristic changes to skin induced by chronic UVA and UVB exposure. Tretinoin is the best studied retinoid in the treatment of photoaging.The deterioration of biological functions and ability to manage metabolic stress is one of the major consequences of the aging process. Aging is a complex, progressive process that leads to functional and esthetic changes in the skin.his process can result from both intrinsic (i.e., genetically determined) as well as extrinsic processes (i.e., environmental factors). Photoaging is attributed to continuous, long-term exposure to ultraviolet (UV) radiation of approximately 300â400 nm, either natural or synthetic, on an intrinsically aged skin.