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When you think of serum, you may envision a petite tube with a clinical-looking pump that deposits a bitty amount of slick liquid. But what if I told you that the best serum I've tried actually comes in a chunky glass jar speckled with cartoon watermelons? Hanhoo's Watermelon Illuminator Overnight Serum may not be packaged like you imagine, but it works.
Hanhoo, conveniently available in — of all places — Walmart, actually only makes a handful of products. Among its small collection you'll find innovative items like Hydrocolloid Blemish Patches and Peeling Pads loaded with collagen, but the brand's signature product is its watermelon day and night duo. The Facial Oil is lovely, but the Overnight Serum is one of those can't-live-without-it deals.
The key ingredient is watermelon extract, which contains obvious hydrating properties and vitamins along with a skin-brightening antioxidant compound called glutathione. There's also some niacinamide, aka vitamin B3, thrown in to minimize pores and fight off fine lines.