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RESEARCH

Sealing skin with petrolatum overnight reduces water loss for dry/compromised skin.

COMMUNITY

A favorite for winter or post-retinoid nights, though people joke about the messy pillowcase tradeoff.

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SAFETYCan trap oil and worsen breakouts on acne-prone skin — patch test before making it a nightly habit.

WHAT THE RESEARCH SAYS

Petrolatum is the most effective occlusive in studies of TEWL reduction.

Most useful in winter, post-procedure, or with eczema-prone skin.

Not recommended for acne-prone skin without testing first.

COMMUNITY SENTIMENT

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COMMENTS

Add context that might help others — skin type, conditions like PCOS, what you'd tried before. The more specific, the more useful.

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