Because hormones are developing and fluctuating, skin becomes more sensitive around puberty or the age of 10 for both boys and girls, give or take a few years. During this time, you will notice changes to their skin, like acne or dryness, and that’s when it is time to start using a face wash. For those who wear makeup, a face wash is even more important to help any pores clogged from makeup.  If you've noticed your child experiencing a breakout, don't be afraid to try something new. "When kids experience a breakout, I typically suggest they apply a full-fat, plain Greek Yogurt mask," Aguilar says. "Simply apply to clean skin and leave on for 10-15 minutes. Rinse and pat dry. Followed with a suitable moisturizer. I also recommend 'teen facials' with a professional."