Answer: Although there are leaf shine products on the market, it is best not to put anything at all on the leaves of your peace lilies. Leaves have tiny little openings from which they exchange carbon dioxide and oxygen. Anything you put on the leaves can clog those openings and cause the leaves to yellow. Instead, use a soft cloth dampened with tap water and gently wipe the leaves down. They won't shine, but they will be healthy!
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