展开We often wish we could turn back time in one way or another, but alas, there’s no cream or serum that can do that. Or is there? Kiehl's Age-Defying Essentials Gift Set is designed to do just that. Powered by gentle-to-skin retinol, it’s a hydrating three-step kit that can be applied before you put on your make-up or last thing at night, reducing the appearance of fine lines, wrinkles and dullness.