” In short, ingestion Vitamin C does not have the same potential to irritate the skin or cause rashes as topical Vitamin C because the mode of absorption and form of Vitamin C are different“, Confirms Koszyk.
“Vitamin C is one of those nutrients that are as popular skin care active ingredients as food nutrients. What is interesting is that the different methods of topical application compared to ingestion work better with different forms of vitamin C. Vitamin C and many antioxidants in plants and superfoods are unstable when they are used as topical care, so we cannot expect a citrus rich in vitamin C to produce these same nutritional benefits by simply rubbing it on our skin. ”
However, ingesting vitamin C is another story, she says. “Our bodies are adapted to absorb vitamin C from our food, so eating a fruit rich in vitamin C is the best way to get the cleanest, most biologically available dose of this prized nutrient. In summary, because our body has evolved to become ideal it has not been shown that the absorption of vitamins through food sources, the ingestion of vitamin C, specially derived from raw superfoods, imitates topical vitamin C causing irritation and potential breakouts. ”
Although ingestion of vitamin C will not produce the same benefits as topically, it is a renowned immune nutrient and, according to Koszyk, it can reduce inflammation and oxidative stress throughout body. She says it has also been linked to reduced risk of cardiovascular disease and is also beneficial for blood pressure.
“Vitamin C is excellent because its ingestion allows it to support all the main systems, from immunity and digestion to integumentary, which are made up of the skin, hair and nails,” Koszyk tells us. “The best sources of vitamin C come from food compared to supplements. Not only is our body adapted to process food-borne nutrients in the most efficient way, but many studies also indicate that food supplements have given the highest bioavailability compared to synthetic forms of vitamin C. ” Major food sources of vitamin C include goji berries, lucuma, camu camu, and moringa, and Koszyk shares the recommended daily vitamin C intake of 75 milligrams for women and 90 milligrams for men.