SCIENCEQUIZFrom LED light therapy to snail mucin, skincare trends are more than just beauty fads—they have fascinating scientific principles behind them. Test your knowledge of how these trends really work.ByStarlight WilliamsJanuary 3, 2025Buzz Into Learning!Nat Geo Little Kids Bug BundleBUY NOWRelated TopicsQUIZSKINHEALTHYou May Also LikeSCIENCEThink you know everything about sugar? This quiz might surprise you.SCIENCEGiving up sugar can change your body for the better—within daysSCIENCEIs 'Ozempic face' real? Here's what sudden weight loss does to your bodySCIENCEShould you start slugging? Inside the hottest trend in skincareSCIENCEYour body ages rapidly in two 'bursts,' at 44 and 60. Here's how to prepare.20250103_NGLK_BugBundle_IAPLegalTerms of UsePrivacy PolicyYour US State Privacy RightsChildren's Online Privacy PolicyInterest-Based AdsAbout Nielsen MeasurementDo Not Sell or Share My Personal InformationOur SitesNat Geo HomeAttend a Live EventBook a TripBuy MapsInspire Your KidsShop Nat GeoVisit the D.C. MuseumWatch TVLearn About Our ImpactSupport Our MissionMastheadPress RoomAdvertise With UsJoin UsSubscribeCustomer ServiceRenew SubscriptionManage Your SubscriptionWork at Nat GeoSign Up for Our NewslettersContribute to Protect the PlanetCopyright © 1996-2015 National Geographic SocietyCopyright © 2015-2025 National Geographic Partners, LLC. All rights reservedRead More