The Different Types of Hydration | by Dr . Charlene DeHaven
the body – to prevent dehydration from excess water loss . Ceramides are further classified as to type . There are 9 different classes of ceramides . These vary according to the length of their molecules . Long chain ceramides are more efficient at holding in water than short chain ceramides . 4 It is not surprising then that long chain ceramides tend to be in shorter supply in aged skin , which is almost always plagued by dryness in both men and women . 5 A primary cause of dry skin is an impaired skin barrier . 6
Good , daily skincare , even in those with atopic dermatitis , can help restore a healthy ceramide balance to a normal profile . 7 The iS Clinical products Cream Cleanser and Sheald Recovery Balm contain bio-identical ceramides .
Natural Moisturization Factors ( NMFs ) – NMF is a complex mixture of amino acids , ions , and lactate that are all water soluble . 8 These retain water between skin cells and are a critical component of skin hydration . Since these are water soluble , they can also be removed from the skin by excessive exposure to water , such as with water sports .
Sweating – Sweating and sweat glands are used in body temperature regulation , but since sweat contains a high-water content in addition to various electrolytes , is also affects water balance throughout the body and skin . Sweat also contains substances that serve as natural moisturizers 9 , including lactate , urea , sodium , and potassium . 10
Corneocytes — The corneocytes themselves are a barrier to water loss . 11 As these travel upward during the normal process of skin barrier formation and then exfoliation , they lose water , become flattened , are devitalized , and become keratinized . Keratinization makes them relatively impermeable to water and helps them serve as an important part of the skin barrier .
Beautiful and healthy skin is not dry . The before and after photos 12 on the right were taken from the same person are a great illustration of how helping dry , dehydrated skin can return skin to beauty and health . Youth Body Serum was not applied to the leg on the left but was applied to the right leg for 6 weeks . There was
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