File under major skin-care news: This best-selling cream is getting a revamp, now reformulated to be entirely paraben-free. (Taking it one step further, the brand says all of their products will be paraben-free by the end of 2019.) But don't worry, you won't be able to tell that your beloved moisturizer has changed; it took Kiehl's scientists five years and more than 114 different versions to come up with this final formula, which feels identical to the OG.