I’ve been talking about vitamin C serum since the beginning of this channel, and since 2018 I’ve reviewed 22 different vitamin C brands. In this video, I’m breaking down why vitamin C isn’t just an “anti-aging extra,” but a core part of a healthy skincare routine—especially if you’re dealing with age spots, dark patches, and hyperpigmentation. The big takeaway is this: vitamin C formulations are not all the same, and the type you choose matters a lot if you have sensitive skin. I explain the difference between L-ascorbic acid (very powerful, but unstable and often irritating) and sodium ascorbyl phosphate (still effective, but much more gentle). Then I answer questions about my own formula, Spotlight C Serum from Clear Revolution Skincare. It’s a buffered sodium ascorbyl phosphate vitamin C, and I also added sodium hyaluronate (a smaller, deeper-penetrating form related to hyaluronic acid) to help hydrate while you’re fading discoloration over time. I even apply it on camera to show you that my skin doesn’t turn red—because you can get antioxidant protection and gradual brightening without the irritation risk that so many sensitive skin types run into.