These are BARGAINS considering how pricey the brand is, especially for a serum that reviewers swear has “lightened my [sun] damage and tightened my skin,” and has become the “most rewarding step in my [skin care] routine.”

While Sunday Riley C.E.O. is a fan-favorite brand, this serum is particularly beloved for how well it fades dark spots associated with age and scarring — while re-establishing a noticeable glow.

The praise for Sunday Riley C.E.O. are endless — just ask our very own Lourdes Avliva Uribe, who swears by the brand’s duo bedtime products — and certainly not baseless, as it’s known to use ingredients that match its luxury prices. But a simple scroll through Reddit, or even Amazon reviews, and you’ll notice a pattern of statements similar to this one from shopper Rena: “This has been the best Vitamin C serum I’ve ever used on my face.”

Many deem the brand’s 15% vitamin C brightening serum a staple in their routines due to its skin-brightening abilities — some swear it’s a lifesaver when it sits under a layer of moisturizer.

It’s “a total game-changer that leaves my skin looking incredibly bright and refreshed,” says one user who says it gives “radiant results,” and “feels luxurious. “I have 54 year old menopausal skin and I love a glowy dewy look, and this provides that.”