Beauty These $20-and-Under Vitamin C and Hyaluronic Acid Serums Are Taking Years Off Reviewers' Faces Each has over 10,000 five-star ratings on Amazon. By Tamim Alnuweiri Tamim Alnuweiri Instagram Twitter Website Tamim is beauty commerce writer at InStyle, with nearly a decade of experience writing about beauty, fashion, wellness, and music. InStyle's editorial guidelines Updated on November 1, 2022 @ 04:27PM 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. Courtesy There are so many beneficial skincare ingredients, but two hugely popular ones are none other than vitamin C and hyaluronic acid. The former for its hyperpigmentation reducing, collagen promoting benefits, and the latter for its ultra-hydrating and anti-aging properties. To harness the benefits of both ingredients, I personally have relied on layering products, but it turns out, there is a world of vitamin C and hyaluronic acid hybrid serums out there — and they're dermatologist approved. The 2-in-1 serums are not only safe and efficient, but the two ingredients also play well together, according to New York City-based dermatologist Rachel Nazarian. "Vitamin C can occasionally be irritating for some skin types, [while] hyaluronic acid is typically universally tolerated well," she tells InStyle. When the two are in one product "it allows you to have a regimen that targets uneven skin tones, pigment, free radical damage, and hydration," but without the potential vitamin C downsides. According to Dr. Nazarian, both are vital ingredients for healthy skin. "Vitamin C is a natural antioxidant that can improve the complexion and hyperpigmentation," she explains. "It's also an incredible and important ingredient for keeping a strong healthy skin barrier, being one of the fundamental ingredients necessary for healthy collagen." (Read: anti-aging benefits). Hyaluronic acid is a naturally occurring substance in the body. But the amount produced by your body diminishes with age, according to the derm. Incorporating the ingredient into your skincare routine helps your skin draw and retain moisture, which allows the skin to look plumper (aka diminished fine lines) and therefore more youthful. Each of the five serums below harness the benefits of both ingredients, and happen to individually have over 10,000 five-star ratings on Amazon. TruSkin Vitamin C Facial Serum 4.6 Amazon View On Amazon View On Target View On Walmart This vitamin C and hyaluronic acid combo serum has a staggering 57,800 five-star ratings. Overall, users praise its quick effectiveness — many report seeing differences in their skin tone and breakouts within a week. One reviewer shared that "fine lines are going away. Acne scars [are] fading. Pigmentation [is] evening out. Even my neck and jawline are smoother." They said that the product worked so well, their husband wanted to use it for his "dad neck." The difference is so astounding that another shopper claimed after using it for a month, "when my kid took a picture of me the other day, it looked like he added a filter." InstaNatural Vitamin C Serum 4.3 Amazon View On Amazon View On Walmart View On Luckyvitamin.com Vitamin C can be a drying ingredient for some. This formula is boosted with both hyaluronic acid and vitamin E to ensure hydration. In describing this product's ability to soak into the skin and minimize the appearance of pores, a happy shopper said "this serum is [the] nectar of the gods for your skin." Several other users have emphasized the serum's ability to reduce dark spots and even acne scars. Eva Naturals Vitamin C Serum Plus Hyaluronic Acid Walmart View On Amazon View On Walmart View On IHerb Acne is inflammation of the skin and vitamin C is a known anti-inflammatory. Users have commented on how smooth and hydrated their skin feels after using this serum. While the first couple weeks have caused a "purging" for some (i.e. when your skin gets worse before it gets better) but after that, one shopper said the serum helped with acne scarring, reducing redness, marks of aging, and minimizing the appearance of pores and blackheads (whew). CeraVe Skin Renewing Vitamin C Serum 4.2 Amazon View On Amazon View On Target View On Walmart Cerave has gone through a resurgence since the advent of TikTok thanks to its affordable yet effective results. According to Amazon shoppers, this is a super hydrating and wrinkle-reducing product (you can thank the hyaluronic acid) that also makes the most of the vitamin C by reducing redness and dark under-eye skin. L'Oréal Paris Revitalift 1.5% Pure Hyaluronic Acid Serum 4.2 Walgreens View on Ulta View On Amazon View On Target The word "filler" in the name might seem superfluous, but as one reviewer said, "not only did I see great results, but I absolutely flipped when my adult son asked me if I had gotten fillers or Botox." Another shopper shared that even though they were neglecting parts of their skincare routine, using this product has helped with the tightness of their skin.