Fun fact: This has been a trick of mine for the last 25 years as a tip from the Dr. Zein Obagi himself ! I’ve been doing this to maximize the effects of my fave ZO products 💙 #zoskinhealth #skincare #skincareroutine #skincaretips #skinhealth #collagen #skin #slapping #skinslapping #belo #acne #glassskin #skingoals #skintips