Vitamin C is a highly coveted ingredient in the world of skincare, often taking center stage in any skincare enthusiast's collection. Its popularity is so immense that it even has its own designated day of celebration every April 4th - National Vitamin C Day. According to board-certified dermatologist and consultant for Skincare.com, Michael Kaminer, MD, this powerful antioxidant is essential for neutralizing free radicals and minimizing damage caused by environmental factors.