Vitamin C is one of the vitamins involved in the functioning of the immune system, it is needed for the growth and repair of tissues in all parts of the body. For many years, vitamin C has been a popular remedy for the common cold. It is used to form an important protein for making skin, ligaments, etc. helping to heal wounds and form scar tissue. It also repairs and maintains cartilage, bones and teeth. The body cannot produce vitamin C on its own, nor does it store it, because being water-soluble, it is eliminated in the urine. Therefore, it is important to include plenty of foods that contain vitamin C in the daily diet, or to supplement it to achieve optimal levels. Depending on its origin, we can classify this vitamin as natural or synthetic. The advantages of synthetic vitamin C is its low price, its disadvantages are its low effectiveness and the potential side effects that the consumption of mineral elements in replacement of vegetables entails. Due to the high acidity of the product (ascorbic acid) and its impact on the stomach during intake, some of the Vitamins C on the market are presented as "sustained release", which allows the body to assimilate them in a smoother way. over a long period of time, usually 6 or 8 hours, with the added advantage that it is acting continuously. Without lactose.