Risks of moisturizers
Two factors have to be considered when assessing the safety of a moisturizer:
- The safety of the ingredients it contains. There are on-line databases like Skin Deep where consumers can get information about individual cosmetic ingredients.[2]
- The risk of bacterial contamination.
A recent study discovered that the application of certain moisturizers increases the incidence of skin cancer in high-risk mice. Note: these animals were subjected to UVB radiation in high doses over a long period of time prior to application of moisturizers.[3] Four popular moisturizers were tested, providing the same result. It is not yet known if the same applies to humans. A fifth moisturizer, specially prepared without mineral oil and sodium lauryl sulphate, had no such effect.[4] The researchers asked Johnson & Johnson to produce this cream for the study, which the pharmaceutical company later patented.
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.
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