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Hot or cold air, low humidity, frequent contacts with water or cleansing solutions ruin
protective layer, and skin loses its natural ability to hold moisture. When water level in
skin drops by 10%,
skin becomes dry, itchy and flaky.
As we age, skin's protection mechanism slows down and skin becomes dry. In some people dry skin is inherited genetically.
Even though
outermost skin layer is made of dead cells, we have to take care of it. The primary function of
horny layer is protection of deeper skin layers, where new cells are born. Regular use of hydrating creams helps to prevent water loss, restore moisture balance and elasticity of
outer skin layer and help it do its job.
Oils, mucopolysaccharides, and fatty acids are widely used in cosmetics to prevent water loss. The most effective cosmetic ingredients for this purpose are liposomes, ceramides and sphingolipids.
Liposomes are microscopic spheres that can be used to encapsulate water, vitamins or other beneficial ingredients. Because these elements are similar in structure to cell membrane, they are easily utilized by
skin. They can penetrate skin surface, bind with it and release
substances they carry.
Ceramides and Sphingolipids are
elements that hold skin cells together so that
environment can not get in and
moisture can not get out. Lipids are lost with age, and
moisture barrier is weakened. Research shows that applying ceramides topically has
effect of generating ceramide production in
skin, thereby increasing
lipid content and reinforcing
protective barrier.
Look for creams with
above ingredients to keep your skin in its best condition and defy aging.

Natalie Katsman is a co-founder of http://www.natural-aid.com, where you can find fine quality aloe vera products for beauty and well-being and subscribe to HealthySkin Newsletter filled with beauty tips, recipes and information on herbal healing, skin care and cosmetic chemistry.