National Vitamin C Day

National Vitamin C Day is observed every year on April 4. It was founded in 2019 by SkinCeuticals, a science-driven skincare company established in Dallas in 1997. The day was created to honor the research of Dr. Sheldon Pinnell, the brand’s founding scientist, whose work established the parameters for effective vitamin C antioxidant delivery to the skin, allowing SkinCeuticals to pioneer the field of cosmeceuticals.

While the day has a commercial origin, its educational purpose extends well beyond skincare, raising awareness of vitamin C as an essential nutrient for overall health.

A Vitamin With a Nobel Prize Behind It

Vitamin C, also known as ascorbic acid, was first identified in the early 20th century and became famous for its role in preventing scurvy, a potentially fatal disease caused by prolonged vitamin C deficiency that was once widespread among sailors on long voyages, where fresh fruits and vegetables were rarely available.

As early as 1757, Scottish physician James Lind recommended mandatory consumption of citrus fruits by sailors in the British Navy, though no one at the time understood why it worked.

The answer came nearly two centuries later. In 1928, Hungarian biochemist Albert Szent-Györgyi isolated a substance he called hexuronic acid, which was later confirmed to be vitamin C, and Norman Haworth subsequently deduced its chemical structure. The compound was then renamed ascorbic acid, from the Latin scorbutus meaning scurvy, with the prefix “a-” meaning without or essentially no-scurvy acid, named directly for its function. Both men received the Nobel Prize in 1937 for their respective contributions.

Today, vitamin C is understood to do considerably more than prevent a centuries-old sailors’ disease. It plays a central role in collagen synthesis, immune function, and the neutralisation of free radicals that cause cellular damage.

Topically, it protects skin from oxidative damage caused by daily exposure to light, heat, and pollution, and may also help reduce blood pressure and lower the risk of gout.

Crucially, the human body cannot produce or store vitamin C on its own, which makes consistent daily intake through food or supplementation genuinely important, not merely a wellness trend.