SkinCeuticals founded National Vitamin C Day in 2019 to celebrate this research and the proven benefits of vitamin C. The research of Dr. Sheldon Pinnell, founding scientist of SkinCeuticals, established the parameters for effective vitamin C antioxidant delivery to the skin, allowing SkinCeuticals to pioneer the emergence of cosmeceuticals.
The Registrar at National Day Calendar proclaimed the day to be observed on April 4th annually.