3 - Moisturisers Flashcards
Moisturisers function to:
(1) retard transepidermal water loss from a damaged epidermal barrier
(2) to soothe irritated skin
(3) to increase skin softness by filling the irregular spaces left by desquamating corneocytes
True (in contrast to emollients which simply make the skin smooth and soft)
Moisturisers increase the water content of the epidermis and stratum corneum
True (in contrast to emollients which simply make the skin smooth and soft)
Moisturisers that rehydrate the stratum corneum can be classified as:
(1) occlusives
(2) humectants
True (in contrast to emollients that simply make the skin smooth and soft)
Occlusive moisturisers function to condition the skin by impairing evaporation of water to the atmosphere
True
Occlusive moisturisers are generally oily substances through which water cannot easily pass
True
Occlusive moisturisers can be classified into 10 categories:
(1) hydrocarbon oils and waxes - petrolatum, mineral oil, paraffin, squalene
True
Occlusive moisturisers can be classified into 10 categories:
(2) silicone oils - dimethicone, cyclomethicones
True
Occlusive moisturisers can be classified into 10 categories:
(3) vegetable and animal fats - soybean oil, olive oil, lanolin and animal fats
True
Occlusive moisturisers can be classified into 10 categories:
(4) fatty acids - lanolin acid, stearic acid
True
Occlusive moisturisers can be classified into 10 categories:
(5) fatty alcohol - lanolin alcohol, cetyl alcohol
True
Occlusive moisturisers can be classified into 10 categories:
(6) polyhidric alcohols - propylene glycol alcohols
True
Occlusive moisturisers can be classified into 10 categories:
(7) wax esters - lanolin, beeswax, stearyl stearate
True
Occlusive moisturisers can be classified into 10 categories:
(8) vegetable waxes - carnauba, candelilla waxes
True
Occlusive moisturisers can be classified into 10 categories:
(9) phospholipids - lecithin
True
Occlusive moisturisers can be classified into 10 categories:
(10) sterols - cholesterol
True