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Oily Skin Research

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Sebum is composed of fatty acids. It's also water-insoluble As we all know, during puberty sebum secretion increases. The more sebum you produce, the oilier your skin. Simple.

But Sebum viscosity is affected by temperature. Sebum reduces water loss in the skin. At temperatures below 30c sebum is either solid or in liquid form.

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Sebum acts as a sufactant to prevent water loss in the skin.

Sebum has no measurable effect on the level of water in the skin.

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