Encyclopedia
Lipid
a broad class of oil-soluble molecules including ceramides, fatty acids, cholesterol, and triglycerides that form the water-resistant matrix between skin cells. In skincare, lipids help seal moisture into the skin...
Lipid
a broad class of oil-soluble molecules including ceramides, fatty acids, cholesterol, and triglycerides that form the water-resistant matrix between skin cells. In skincare, lipids help seal moisture into the skin...
UV Index
a standardized scale that forecasts the strength of ultraviolet radiation from the sun at a given place and time, typically running from 0 upward. It helps people gauge daily sun...
UV Index
a standardized scale that forecasts the strength of ultraviolet radiation from the sun at a given place and time, typically running from 0 upward. It helps people gauge daily sun...
UVB
a type of ultraviolet radiation with shorter wavelengths that mainly affects the surface layers of the skin and is the primary cause of sunburn. Its intensity varies with time of...
UVB
a type of ultraviolet radiation with shorter wavelengths that mainly affects the surface layers of the skin and is the primary cause of sunburn. Its intensity varies with time of...
UVA
a type of ultraviolet radiation with longer wavelengths that penetrates deeper into the skin and is present consistently throughout daylight hours and across seasons. It is strongly associated with skin...
UVA
a type of ultraviolet radiation with longer wavelengths that penetrates deeper into the skin and is present consistently throughout daylight hours and across seasons. It is strongly associated with skin...
PA Rating
a labeling system, common in Asian sunscreens, that indicates the level of UVA protection using plus signs from PA+ to PA++++. It is based on the persistent pigment darkening method...
PA Rating
a labeling system, common in Asian sunscreens, that indicates the level of UVA protection using plus signs from PA+ to PA++++. It is based on the persistent pigment darkening method...
SPF (Sun Protection Factor)
a measure of how well a sunscreen protects skin from UVB radiation, the wavelengths chiefly responsible for sunburn. The number indicates relative protection under controlled testing, though real-world results depend...
SPF (Sun Protection Factor)
a measure of how well a sunscreen protects skin from UVB radiation, the wavelengths chiefly responsible for sunburn. The number indicates relative protection under controlled testing, though real-world results depend...
