Moisturizers are complex mixtures of agents developed to make the epidermis (external layers of the skin) more elastic, by increasing its hydration. They can be oil-water or water-oil emulsions.The way the skin is hydrated is by:
- building a film on the skin - locking the water in and to not evaporate or
- using low-molecular weight substances avid for water molecules – that absorb the water surrounding the skin and keep it hydrated.
Examples of such substances are naturally occurring skin lipids, natural oils, glycerin, PCA-Na, lanolin, petrolatum, urea, lactic acid, and sorbitol. Many other substances can be added to the basic formula with a positive influence on the skin, such as antioxidants, sunscreens, etc.
The challenge is to hydrate the skin without giving the oily looks and without clogging the pores. There is a formula for each part (face, feet, hands, legs, etc) and case (normal, dry, oily skin) as well a combination of each.
Moisturizers are important to the health of the skin, helping it to keep its elasticity, repairing and protecting from environmental aggressions, and ultimately preventing it from premature aging.
Be healthy and be good.
Vanessa
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