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Why do moisturizers use occlusives in their formulation?

Dr. Mehmet Oz, MD
Cardiology (Cardiovascular Disease)

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.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.