Beauty Skincare PSA: The Luxury Serum Making "Annoying Face Lines" Vanish Is Half Off Right Now One reviewer said their skin is looking “younger day by day.” By Maya Gandara Maya Gandara Maya Gandara is an Ecommerce Writer covering beauty, fashion, and lifestyle at Meredith. When not testing the latest buzzy skincare, you can find her shooting film photography around Brooklyn or cozying up with a good novel. InStyle's editorial guidelines Published on September 18, 2021 @ 05:00AM 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: Courtesy/InStyle It's no secret that our skin goes through some major changes as we age. Therefore, our skincare regimens must adapt along the way, too. For those noticing the beginnings of fine lines and wrinkles, a loss of elasticity, and sun damage, adding retinol into your weekly routine can be a transformative move. The potent ingredient has the power to correct a multitude of mature skin concerns at lightning speed — and one highly-regarded retinol serum happens to be majorly discounted today. The Juice Beauty Stem Cellular Anti-Wrinkle Retinol Overnight Serum has dropped to $36 as part of Ulta's 21 Days of Beauty sale. With pages of rave reviews from even the pickiest skincare fanatics — some have seen significant results on forehead wrinkles, discoloration, dark circles, and crow's feet — you may want to take advantage of this limited-time offer and stock up on several bottles. Courtesy Shop now: $36 (Originally $72); ulta.com The vegan and cruelty-free formula contains two forms of retinol, skin-firming peptides, and the brand's own plant stem cellular technology. Though retinol can be harsh on sensitive skin during the first few applications, this serum's level of vitamin A is delivered alongside evening primrose, which ensures the retinol tackles the skin's surface at a gentle pace, preventing peeling, redness, and irritation from occurring. Plus, vitamin E, jojoba oil, coconut oil, and shea butter soften and hydrate the skin. Retinol Too Harsh for Your Skin? Try This Alternative Anti-Aging Cream Ulta reviewers claim the serum is a lifesaver for those "hitting 40 [years old] and over." It's been deemed a "miracle" formula for smoothing out "annoying face lines," and provides "unbeatable results" in just a matter of days. One person even shared that their face is "looking younger day by day," with "creases of concern" slowly fading away with every application. As an added bonus, many agree it melts into the skin with no greasy residue left behind. "The absorbent texture is creamy rather than oily. It smooths out my complexion and fine lines and leaves a natural glow. I could feel the active ingredients the first time I applied it," wrote one shopper, who also noted the serum "doesn't smell cheap or perfumy." Everything You Need to Know About Retinol "I actually wake up with a complexion that looks and feels so amazing, that I really don't even want to apply my makeup because my skin feels and looks that good," shared another. "I think the main thing that hits this product out of the skincare park is the way the retinol is used. This product uses encapsulated retinol, so you truly reap every benefit. After just a few weeks of using this product, it honestly looked and felt like I had younger, rejuvenated and more radiant skin than ever before." Don't miss the last day of Ulta's 21 Days of Beauty — snag the Juice Beauty Stem Cellular Anti-Wrinkle Retinol Overnight Serum while it's down to $36, alongside the brand's other discounted serums.