Beauty This Hyaluronic Acid-Infused Serum "Revived the Plumpness" of Shoppers' Skin “My complexion looks tighter, very moisturized, soft, and smooth.” By Taylor Lane Taylor Lane Instagram Taylor Lane is a Maryland-based freelance writer who covers all things beauty, fashion, and shopping. She was previously an Ecommerce writer for InStyle. InStyle's editorial guidelines Published on August 12, 2021 @ 12:00PM Pin Share Tweet Email We independently research, test, review, and recommend the best products—learn more about our process. If you buy something through our links, we may earn a commission. Photo: larocheposay/Instagram If you struggle with dehydrated skin and fine lines and wrinkles, you've probably tested serums that promise to solve those skin concerns — and you've probably struggled with them, too, if they didn't contain superstar ingredients that treat signs of aging, like hyaluronic acid. Luckily, Amazon shoppers have pinpointed a powerful formula you can add to cart right now. Over 6,100 of them would likely recommend the La Roche-Posay Hyalu B5 Pure Hyaluronic Acid Serum, if the number of five-star reviews says anything. It's crafted with pure hyaluronic acid, which deeply hydrates the skin by holding in moisture and helps it to look plumper. "Hyaluronic acid is widely used in skincare as a humectant, [a substance that helps the skin hold onto water] and can often be found as the key ingredient in serums, oral supplements, dermal fillers, and eye drops," Dr. Lian Mack previously told InStyle. La Roche-Posay's formula blends it with vitamin B5, which moisturizes and helps to reduce acne inflammation. According to the brand, the dermatologist-tested serum is suitable for all skin types, even sensitive skin. Courtesy Shop now: $30, amazon.com The hyaluronic acid serum has a rich texture that doesn't feel greasy or weigh down the skin — instead, according to shoppers, it's light and refreshing, absorbing instantly. You can expect immediate plumpness after use and an overall reduction in fine lines over time, says La Roche-Posay. Reviewers on Amazon are practically drinking it up. "This serum actually worked beautifully. And I am seventy!" one wrote. "What I like best are the results. About two months in, I looked in the mirror one morning and noticed my little eye wrinkles were just plain gone… I use it generously at bedtime, and in the morning, always over clean skin. I don't notice any scent at all. It literally glides on like silk. Afterward, It feels a little sticky at first, but that dissipates. I'm so pleasantly surprised by the obvious results. It really did exactly what it claimed it would! My complexion looks tighter, very moisturized, soft, and smooth." Amazon's Luxury Beauty Store Is Packed With Supermodel-Approved Beauty Buys Another shopper added, "I have a small amount of rosacea on my cheeks that comes out in the winter and if I use certain face products. I did research on switching my skincare routine and, honestly, have fallen in love with this stuff. It's gentle, and my skin has been looking better and better. A small amount does go a long way, but I for sure will be buying again." And they confirm that the results the brand promises really come through. One shopper wrote, "it revived the plumpness of my skin and smoothed fine lines. Just love the La Roche-Posay line of products because it is ideal for sensitive skin! Just recently started using this product and immediately saw great results in a few weeks." Even if you think you've tried it all before, try La Roche-Posay's hyaluronic acid serum on Amazon for only $30 and watch your fine lines and wrinkles disappear.