The Nue Co. has released Topical – C, a powdered topical vitamin C supplement. The company says it is shown to boost collagen and firm the skin. It activates when mixed with moisturizer or serum. Applied daily in the morning or at night, it dissolves into the skin, giving it a brighter, more even appearance, claims The Nue Co. The product is 100% vegan with no fillers, parabens, or preservatives.