Learn more. When it comes to skin care ingredients, there's no more iconic duo than vitamin C and ferulic acid. Chances are you're probably aware that vitamin C is a key ingredient in many of your ...

The best vitamin C serums combine high-quality, stable forms of vitamin C. They may also include complementary ingredients ...

The patent not only protected the seemingly magical ratio of vitamin C, vitamin E, and ferulic acid, but also Skinceuticals’ stabilization method, which managed to make l-ascorbic acid ...

One of the things we love about this serum is that it contains a synergistic antioxidant combination of 15% pure vitamin C, 1% vitamin E, and 0.5% ferulic acid. These powerful natural ingredients ...