vitamin c – MySymptom

Can taking too much vitamin C cause severe stomach upset?

1. Introduction Ingesting excessive doses of vitamin C can definitely cause severe stomach upset, manifesting clinically as abdominal cramping, profound nausea, and explosive osmotic diarrhea. Vitamin C, chemically known as ascorbic acid, is a highly water-soluble nutrient with a strict physiological limit on intestinal absorption. When the amount consumed far exceeds the absorptive capacity of … Read more

Why does my skin burn intensely when I apply vitamin C serum to my face?

1. Introduction A burning sensation when applying vitamin C serum occurs due to the exceptionally low pH required to keep the active ingredient, L-ascorbic acid, chemically stable. This profound acidity temporarily disrupts the natural lipid barrier of the skin, irritating the superficial sensory nerves located within the epidermis. If the epidermal barrier is already compromised … Read more