Moisturizers can be used to prevent the skin from becoming too dry or oily, such as with light, non-greasy water-based moisturizers. Such moisturizers often contain lightweight oils, such as cetyl alcohol, or silicone-derived ingredients, such as cyclomethicone. They increase the skin’s hydration (water content) by reducing evaporation.
Two factors have to be considered when assessing the safety of a moisturizer:
- The safety of the ingredients it contains
- The risk of bacterial contamination.Some people are sensitive or allergic to certain chemical components, which can cause irritation, rashes, and other allergic reactions.
As with most skin-care products, there is a risk of moisturizers being contaminated with bacteria that can cause disease.