Best vitamin C serums
Vitamin C is one of the most studied topical actives for the look of brightness and a more even tone, but plenty of serums oxidize before they reach your skin or dose the active too low to matter. We score every vitamin C serum on evidence, potency, delivery, formulation, and value using the SerumProof rubric. The picks below are ranked by that total score, highest first.
- 1$27.95, ~$17/moTimeless20% Vitamin C + E Ferulic Acid Serum
One of the great value plays in the vitamin C aisle: the studied antioxidant trio, openly dosed, for the price of a couple of coffees. You give up the stability testing and long shelf life of the prestige names, and 20% is more than reactive skin wants. Used fresh and stored cool, it is hard to beat on active per dollar.
- 2$58, ~$17/moPaula's ChoiceCLINICAL 1% Retinol Treatment
A strong-evidence retinoid at a disclosed 1%, the assertive end of the range, in packaging that actually protects it. You pay a mid-prestige price for the transparency and the polish, and 1% is not a beginner strength, so ease in.
- 3$47, ~$28/moLa Roche-Posay12% Pure Vitamin C Serum
A pharmacy-standard L-ascorbic acid serum at a fair mid-range price, with a disclosed 12% and a touch of salicylic acid for texture. The dropper packaging means it browns over time like most pure vitamin C. A sensible, widely available option if you want the acid form without the prestige markup.
- 4$16, ~$10/moGeek & GorgeousC-Glow
A genuine C, E and ferulic serum for a fraction of the prestige price, doing the well-evidenced antioxidant job without frills. The amber dropper still browns over time like any L-ascorbic acid serum. For the money it is one of the easiest vitamin C picks to recommend.
- 5$26, ~$16/moNumbuzinNo.5 Vitamin Concentrated Serum
A straightforward two-active brightening serum that actually discloses its numbers. 5% niacinamide and 4% tranexamic acid both sit in the studied range and do the bulk of the appearance-of-tone work. Glutathione gets the marketing spotlight, but with no disclosed level it reads as a halo ingredient rather than the reason this works. A solid, fairly priced pick for the niacinamide-tranexamic acid combination.
- 6$33, ~$20/moMaeloveThe Glow Maker
The value story of the vitamin-C aisle: the same strong-evidence antioxidant trio as the category benchmark for around a sixth of the price. It is not the identical formula and it will still brown on you eventually. As a first serious vitamin C, though, it is very hard to argue with.
- 7$15.99, ~$10/moByomaBrightening Serum
A competent, cheap barrier serum with a genuine niacinamide and ceramide showing. The vitamin C that gives it its name looks like a halo ingredient rather than a treatment dose, so buy this for the appearance of a calmer, better-conditioned barrier, not for real brightening.
- 8$23.99, ~$7/moNeutrogenaRapid Tone Repair Retinol + Vitamin C Dark Spot Corrector
A sensible everyday dark spot serum for a drugstore price, pairing two well-evidenced categories of actives at doses too light to verify as more than gentle. It suits a low-commitment daily habit better than it suits skin looking for a strong, fast-acting brightening serum.
Ranked by our SerumProof score. See how scoring works.