There can be several initial sources of skin dryness. It can be a result of a lack of water and a lack of fat, or both deficiencies can exist at the same time. Both internal and external hydration are important, the two cannot exist without each other if we want healthy, hydrated skin.
Before you start creating your facial care routine, it's worth understanding your skin's signals so you know which group you belong to.
Dry skin because of lack of water: Getting to a dehydrated state is a complex process. The main cause is the lack of natural moisturizing components (NMF) in the skin and the changed composition of the lipid layer, which together organically contribute to the formation of a weakened barrier layer. Diffusion takes place between the skin and the environment, so a certain amount of water continuously evaporates from our skin; first, the water content of the stratum corneum, then later the evaporation of moisture from the deep layers to the external environment starts, the latter is transepidermal water loss. In the case of dry skin, the main goal is to eliminate these disrupted processes and strengthen the outer surface layers with appropriate active ingredients.
Dry skin because of lack of fat: Extra dry skin results from the combination of several negative factors. In general, the development of dry skin is blamed on excessive skin water loss, more specifically transepidermal water loss. If we assume that our skin is dehydrated, we are not on the wrong track. However, if the often dry state on our skin does not go away, despite the fact that we consciously pay attention to the consumption of sufficient liquid, and that we apply suitable moisturizing active ingredients to the skin from the outside, then in addition to the lack of water, it is likely that our skin does not produce enough sebum, nor is the composition of its lipid layer optimal. Therefore, we can help our skin with proper re-greasing by using preferably skin-identical lipid ingredients, which also increase the hydration of the skin and eliminate the unpleasant pulling and dry feeling.
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