Hydration and Moisturization Notes

Hydrating the skin adds water to it, and using a moisturizer locks the hydration in and maintains proper hydration on the surface of the skin to keep it from drying out. It does this by increasing the water-holding ability of the skin with molecules called humetctants, and covering and sealing the skin with an emollient to maintain and replenish the skin's water barrier which is broken down by constant cleansing of the skin.