There are a lot of reasons to use Estee Lauder products, but let's start with their reputation. The company's reputation for quality is second to none. Best skin care products have won several awards and have even won a few of their own. Hyaluronic acid, for instance, is the main component of the Perfectionist Pro Rapid Firm and Lift Treatment and Advanced Night Repair lines. Hyaluronic acid can hold up to 1,000 times its weight in water, so it's a moisturizing all-star. It also includes other hydrating ingredients, such as shea butter and squalane.