Vitamin C has a reputation problem, and it's mostly the fault of the serums. The classic high-potency L-ascorbic acid formulas are genuinely effective, but they're also temperamental: they sting, they need a low pH to work, they oxidize into a sad orange liquid if you so much as look at them wrong, and they often demand a careful introduction. Afterglow is Sunday Riley's answer to people who heard all that and quietly decided vitamin C wasn't worth the hassle. By building the brightening into a gel-cream moisturizer using an oil-soluble, stable form of the vitamin, it sidesteps nearly every one of those headaches — and that format decision is the most interesting thing about it. The vitamin C here is tetrahexyldecyl ascorbate, an oil-soluble ascorbic acid ester sitting fourth on the list and reportedly dosed around 5%. Because it's oil-soluble and stable, it doesn't need the acidic, potentially stinging environment that pure ascorbic acid requires; it sits happily in the silicone-and-emollient base of a gel-cream and converts to active vitamin C in the skin. The brand then does something genuinely smart: it adds ergothioneine, a powerful amino-acid antioxidant, specifically to help stabilize the vitamin C and extend its working life. Combined with the airless pump jar — a notable upgrade over the open-mouth jars that plague so many vitamin C products, including some of this brand's own — you get a vitamin C that's actually engineered to stay effective rather than degrade in the medicine cabinet. Allantoin soothes, xanthophyll and crosspolymer hyaluronic acid round out the antioxidant and hydration sides, and the whole thing is coherent. The texture is where the product earns its name. It's a bouncy, lightweight gel-cream that spreads like a dream and sinks into a soft, dewy finish without any tackiness. The immediate effect is a real, visible radiance — skin looks brighter and more hydrated the moment it goes on, which is exactly the instant gratification a product called Afterglow needs to deliver. Over four to eight weeks of consistent use, the vitamin C does the slower work of evening out tone and reinforcing antioxidant defense, particularly valuable in the morning under sunscreen, where vitamin C and SPF genuinely reinforce each other against daytime free-radical damage. For normal, combination, and oily skin that wants a glow and lightweight hydration in one step, it hits the brief neatly. The reservations are familiar by now if you know this brand. First, the scent: neroli and sweet orange oils give Afterglow a bright, fresh citrus aroma that a lot of people will find lovely and uplifting, but it's present, it's not fragrance-free, and the citrus oils carry the usual small irritation and sensitivity caveats for reactive skin. They're far enough down the list to be low-risk for most, but sensitive or rosacea-prone users should approach with a patch test, and anyone who strictly avoids fragrance should know it's here. Second, very dry skin may find the lightweight gel-cream texture insufficient as a standalone moisturizer in winter, and want something richer layered over it. And third, of course, the price. At $65 for 1.7 ounces, this is luxury-tier moisturizer pricing. The formula is legitimately well-built — stable vitamin C, a thoughtful stabilizer, protective packaging, an elegant texture — so you're not paying purely for the logo, but THD ascorbate is available in plenty of less expensive products, and you are paying a Sunday Riley premium on top of the chemistry. There's a smaller size for trialing and a bit of relief on the entry price, but no large format that meaningfully improves the per-ounce value. As always with this brand, the 2019 FTC settlement over fabricated reviews is worth keeping in the back of your mind; read the ingredient list and trust your own skin over the breathless marketing, and the list here holds up well. There's also a practical efficiency to the format worth naming: by folding vitamin C into the moisturizer, Afterglow collapses two steps into one, which for anyone trying to simplify a routine is a genuine selling point. You're not buying a separate serum and a separate moisturizer; you're getting antioxidant brightening and lightweight hydration in a single jar, and for people who struggle to keep up an elaborate regimen, that consolidation often translates into better consistency — and consistency is what actually delivers results with vitamin C. That said, the flip side is that you can't dial the vitamin C dose independently of your moisturizer the way you could with a standalone serum, so power users chasing maximum brightening may find the moderate dose limiting. As a final read, Afterglow is one of the more sensible ways to get vitamin C into a routine for people who've been burned by finicky serums. It's stable, comfortable, genuinely glow-giving, and protected from the elements better than most. It's not the most potent vitamin C you can buy, it's not fragrance-free, and it's not cheap. But for normal-to-combination skin that wants brightening and radiance built right into the moisturizer step, without the sting or the oxidation drama, it's a polished, likable product that mostly justifies its place — provided the scent and the price sit right with you.