Petrolatum decreases the transepidermal loss of water by 99% and restores the barrier of the stratum corneum by increasing the production of intracellular lipids , such as sphingolipids Night Comfort Review, sterols and free fatty acids.
In this way it can help in the appearance of the skin, especially by reducing the lines caused by dehydration, in addition it matches the rough surface of the corneocytes that are desquamating, giving a smooth appearance.
However, its disadvantage is that it is a fatty substance, so in many aesthetic products the use of dimethicone is preferred Night Comfort Review, since it is hypoallergenic, non-comedogenic, it is part of the silicone family and is the base of the moisturizers that They claim to be fat free. Glycerin is a humectant that attracts water and has been shown to modulate aquaporins in the epidermis.