“You don’t need to avoid wearing moisturizer or sunscreen,” says Dr. Sophie Momen, consultant dermatologist at One Welbeck, “but I would use light formulations that are labelled ‘non-comedogenic’ [essentially less likely to block your pores].” They may be free from heavy oils, thick ingredients like shea butter or, most commonly, petrolatum aka petroleum jelly. While ingredients like these are great for easing dry skin, their heat-retaining abilities are less than desirable when all you want is to cool down fast. Petrolatum-based creams in particular can be too thick, adds Dr. Momen, and in combination with sweating, may cause breakouts.
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