The patent behind a $182 cult-favorite skincare product recently expired. So, where are all the dupes?

The patent behind a $182 cult-favorite skincare product recently expired. So, where are all the dupes?

The patent behind SkinCeuticals' beloved vitamin C serum expired this year.Tanja Ivanova/Getty ImagesSkinCeuticals' pricey vitamin C serum patent expired, leading many to hope for cheaper alternatives.C E Ferulic dupes could be on the way, but that doesn't mean they'll work, industry experts said.Some industry experts say dupe culture could be hindering innovation in skincare.Does it sound crazy to spend $182 on a 30 mL bottle of face serum that…