10. Can I leave a bottle of body moisturizer in the shower?

As long as you keep the lid tightly closed and use the product within six to eight weeks, says Dr. Day. Also, be sure to keep the shower curtain and door open to allow adequate ventilation between uses. Otherwise, dampness in the stall can promote the growth of bacteria, yeast, or fungi in the cream, especially if it's an organic product with no preservatives.

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