Hand sanitizer, if you read the ingredient list, is mostly alcohol. That doesn’t mean it should be your new favorite cocktail to take into the shower, but rather should teach you how alcohol’s chemical properties help sanitize your hands. According to Dr. Peterson Pierre, founder of the Pierre Skin Care Institute, alcohol acts to break down the lipids or fats in bacteria and virus’ cell walls, effectively killing them. But there is a flip side to this germ-killing superpower. “Alcohol and propylene glycol draw moisture out of the face,” Dr. Pierre told The List. “It’s the process of osmosis; the moisture is going to travel from your skin to where it’s needed, and since alcohol has less (moisture) it’s going to go in that direction.”

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There are a few different ways to try facial exercise — but experts differ on how long and how frequently to do it. Based on the results of the aforementioned JAMA study, it may require 20 to 30 minutes daily for a few months to notice a change, and then the same timeframe a few times a week to maintain results, which may not be sustainable for some. However, as Peterson Pierre MD of the Pierre Skin Care Institute explains, if you’re able to add on this time to your daily/weekly routine, there is some reward for your efforts. “If you thrive on structure and think you can be committed and consistent with this program, you can reap the benefits of firmer skin, fuller cheeks, and a younger appearance,” he says.

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