Why do moisturizers use occlusives in their formulation?
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Dr. Mehmet Oz answered:Moisturizers will often incorporate oily substances called occlusives, such as petrolatum, in their formulations to boost skin's ability to hold onto moisture by creating a film over the skin's surface to trap water in. This film smoothes the skin and also creates a barrier that helps to prevent moisture loss.
Moisturizers will often incorporate oily substances called occlusives, such as petrolatum, in their formulations to boost skin's ability to hold onto moisture by creating a film over the skin's surface to trap water in. This film smoothes the skin... More

