![]() Persons with normal skin often develop dry skin when they reach their forties or fifties, in persons with oily skin, this shift to dry skin may occur even later. Most people over 60 years of age have dry skin. Cosmetic products containing potentially irritating or allergenic substances such as propylene glycol, derivates of cinnamon acid, formaldehyde, retinoids, salicylic acid and sodium laurylsulfate should be avoided as far as possible. These products should preferrably contain as few ingredients as possible. In sensitive skin, the application of only few cosmetic products is recommended. The dry skin parts need water in oil-emulsions (more oil/ lipids than water) rich in lipids, whereas only oil in water-emulsions (more water than oil/ lipids) should be applied on the oily parts to prevent the clogging of pores and comedones. Water in oil-emulsions (containing more oils/ lipids than water) or rich ointments should be avoided in this skin type.Ĭombination skin demands special care, and it is often necessary to use two different moisturising products. Products labeled “non-comedogenic” are recommended, as these products are less likely to cause comedones (blackheads and whiteheads) in persons with oily skin. Light oil in water-emulsions (more water than oil/ lipids) or oil-free fluids should be used. Oil in water-emulsions may lead to an augmented water loss through evaporation and are therefore not recommended in this skin type, although they are often easier to apply than ointments. Lactic acid is such a lipid precursor, which is turned into ceramide (a special lipid or fatty substance of the epidermis). Water-binding ingredients such as urea, lactic acid and glycerin enhance the hydrating effect of moisturisers and are recommended in dry skin.īesides lipids, so-called lipid precursors are also recommended, as they are transformed into lipids in the skin. The lipid film smoothes the cragged skin surface and prevents a further loss of water from the epidermis. For economic and operational reasons, it is necessary to separate the water completely from the crude oils before transporting or refining them. Water in oil-emulsions (mixtures with more oil/ lipids than water) should be preferred. In dry skin, moisturisers are used to increase the amount of lipids (fatty substances) in the horny layer, to reduce water loss and to soothe the skin. Water-soluble drugs are more quickly released from oil-in-water emulsions while oil-soluble drugs are more quickly released. vanishing cream while water-in-oil emulsions are used externally to prevent evaporation of moisture from the surface of skin e.g. During nighttime, an oil in water-emulsion containing more lipids may be beneficial.įor other body areas, oil in water-emulsions are also recommended. Oil-in-water emulsions are used externally to provide cooling effect e.g. Skin care products should keep normal skin well moisturised without making it oily.įor facial skin, light oil in water-emulsions (cream containing more water than oil or lipids) are recommended during the day. Skin care according to skin type and skin property
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