“Wow! This stuff makes my skin so firm and smooth,” wrote a 32-year-old beginning to see fine lines. “This stuff tightens my skin and smooths out the wrinkles. It’s great as a leave-on overnight treatment.” If you haven’t used a pressed serum before, it feels slightly thicker than a gel or cream; reviewers describe the consistency as a cross between the original Hydro Boost and Vaseline. Thanks to that aspect, it keeps your skin hydrated through wintry temperatures—and just like Vaseline, a little goes a long way. To buy: $16 (was $18); amazon.com. “My wrinkles are deep, and I do feel that there was improvement, that the wrinkles [are] not quite as noticeable,” wrote a fan after using the non-sticky serum morning and night for two weeks, adding that they were so satisfied, it went on their subscriber list. The serum’s “wrinkle erasing” results are thanks to the formula’s smart hybrid of humectant and emollient. Hyaluronic acid holds water in your skin, and the synthetic beeswax seals it in. As a last user wrote of the serum’s overnight effects, “This stuff is legit. [When I] woke up the next morning, my jawline had magically reappeared. Chin sag was back up where it was supposed to be.” They concluded, “Gravity did its work over the course of the day…don’t be completely fooled, girls. But I am OK with waking up each morning and not staring down death in the mirror.” The dream! Get the Neutrogena Hydro Boost Pressed Night Serum for $16 while it’s on sale.