Skin Types

The definition of a skin type is characteristics of the skin from a genetic standpoint. Everyone has a skin type

-Normal skin
-Normal/combination skin
-Dry/dehydrated skin
-Oily/problem skin
-Sensitive skin

Layers of your skin

-Epidermis layer is the outermost layer of the skin. Our barrier to the outside world
-Dermis layer is the lower live layer of the skin.
-Hypodermis is the lowest layer which is just the fatty layer. Also called subcutaneous or subcutis layer

Water resistant sunscreen

-Sunscreens that will not wash off the skin for up to eight hours after exposure to water or rain

Ultraviolet B rays (UVB)

-One type of ray contained in the light spectrum making up the suns light.
-Less intense than UVA rays
-Only penetrate to the lower epidermis

Ultraviolet A rays (UVA)

-One type of ray contained in the light spectrum making up the suns light. 
-Longer, more intense than UVB rays
-UVA penetrate to the dermis

NonComedogenic

-Describes a substance that does not cause comedones (blackheads)

Chemical Exfolation

-Uses both natural and laboratory designed chemicals to loosen dead cells from the skins surface