Could occlusives stop water loss from your skin entirely?

Dr. Mehmet Oz, MD
Cardiology (Cardiovascular Disease)

While water loss can be completely halted by an occlusive, once it is removed, water loss resumes at the same rate as before.

Patricia Farris, MD

Moisturizers are composed of occlusives, humectants and emollients. The function of an occlusive ingredient is to form a barrier over the outer most layer of the skin, sealing water in. Occlusives do not stop water loss from the skin entirely, but they do a great job of keeping the skin hydrated. Common occlusives ingredients include petrolatum, waxes, lanolin, mineral oil and ceramides. Botanical oils of sunflower, soybean, jojoba and evening primrose also act as occlusives in moisturizers.

Continue Learning about Moisturizer Ingredients

How do humectants moisturize?
Humectants draw water to the skin’s surface, thus increasing the water content of the epidermis, or ...
More Answers
Why is it important to have a humectant in a moisturizer?
Dr. Mehmet Oz, MDDr. Mehmet Oz, MD
The purpose of a humectant is to draw in and hold onto moisture. Some of the most commonly used hume...
More Answers
What are oil-in-water moisturizers?
Dr. Mehmet Oz, MDDr. Mehmet Oz, MD
Oil-in-water moisturizers are those in which water is the dominant carrier. Since these formulations...
More Answers
What skin moisturizer ingredients can help keep my skin healthy?
Ben KaminskyBen Kaminsky
Normal skin still needs special attention to ensure that it remains balanced. It is important to...
More Answers

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.