According to New York-based board-certified dermatologist Usma Syed, MD, 95 percent of the truly scientific tips you should know as a consumer can fit into one Twitter thread. “All Instagram/YouTube/TikTok skin-care education videos just repackage a few core principles with different dances/ brand names. Let me prove it,” he tweeted in January. 

Dr. Syed went on to list eight different rules which include the importance of using moisturizer, SPF, retinoids, and active ingredients. Additionally, he advised people not to use too many active ingredients at the same time — because less is more. As people try many different social-media-recommended products at once, over-exfoliation can be an issue. “AND THAT’S IT. Now you can unsubscribe from every skin-care TikTok/YouTube channel,” he concluded.

In January, New York-based board-certified dermatologist Usma Syed, MD, tweeted “All Instagram/YouTube/TikTok skin-care education videos just repackage a few core principles with different dances/ brand names. Let me prove it.” His thread, which outlined eight simple rules for creating an effective routine, went viral. Other dermatologists and skin specialists agree with Masyed’s thinking — skin care doesn’t need to be as complicated as social media makes it out to be. “Women talk to me about how they get overwhelmed with it all and seem to switch their skin care quite regularly. It genuinely does get confusing!” Julie Brackenbury, a cosmetic nurse tells Allure

Especially with the rise of DIY skin-care hacks on TikTok, misleading information can cause skin issues abound. “Using too many active ingredients at once can irritate our skin by means of how they work. Many of the actives we use to improve skin texture, discoloration, and aging can cause irritation as a side effect,” Dr. Franco explains. “Using one at a time is totally fine, but when all of your skin-care products (cleanser, serum, moisturizer, etc) have actives in them, your skin barrier could take a big hit.”

Signs Your Skin-Care Is Making Things Worse

The more irritating active ingredients you put on your skin, the more you could be disrupting your skin barrier, which can lead to irritation, redness, flaking, swelling, and burning. “The more ingredients you are using, the more likely you will encounter something you are extra sensitive or allergic to,” Dr. Franco adds.





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