Both collagen, the substance that gives structure to bones, ligaments, tendons and blood vessels, and dentin, the structural element of teeth, can only be formed when certain levels of vitamin C are present in the body. Scurvy, a disease caused by severe vitamin C deficiency and the weakening of collagen in the body that becomes evident through joint swelling, easy bruising and tooth and hair loss, gives testimony to the important role of vitamin C.
Vitamin C is also used by the body as an antioxidant and to help aid in the absorption of iron.

Features

Most people do not need to take vitamin C supplements because so many foods contain enough vitamin C to reach the minimum daily requirements. Vegetables and fruits, particularly citrus fruits, generally have high levels of vitamin C, including staples such as oranges, tomatoes, potatoes, broccoli, spinach, strawberries and grapefruit.
Men should consume about 90 milligrams of vitamin C a day, while women should take in about 75 milligrams.
Vitamin C supplements generally contain 60 milligrams.

Prevention/Solution

To prevent vitamin C deficiencies, certain people are often advised to take vitamin C supplements by their physicians. These individuals include those with iron deficiency anemia who must take iron supplements, people with an extremely low dietary vitamin C intake, especially the elderly, women on birth control pills containing estrogen and people that take aspirin regularly. Individuals with iron deficiency anemia are advised to take vitamin C supplements because the vitamin is known to aid in the absorption of iron. Estrogen and aspirin are known to reduce vitamin C levels in the body.

Benefits

Aside from preventing scurvy and aiding in iron absorption, vitamin C has other important health benefits. Vitamin C, whether provided by a regular diet or in the form of supplements, is an antioxidant that may help prevent the common cold and possibly even heart attacks, strokes and certain cancers.

Warning

While vitamin C supplements are safe in and of themselves, high levels of intake can be toxic. The highest recommended vitamin C intake is 2,000 milligrams per day--anything above that could be toxic. Probiotics

Presence of bacteria in pores
4. Anabolic steroids
5. Birth control pills, but in some women acne has reduced by taking the pills
6. By exposure to high levels of chlorine compounds
7. Irritation of the skin.

All types of acne can be easily treated with the help of medicines, herbal supplements, natural remedies and also some skin care products. Mostly acne is formed due to wrong food habits, improper food, and also due to irregular habits of eating. In some cases excess of starch, sugar and fatty foods are also responsible for growing acne. So to avoid acne it is necessary to rectify these things. Chronic constipation is also one of the major problems of acne.

All the stages of acne whether it is mild or severe can be cured by the help of pharmaceutical products which help our skin to prevent blockage of sebaceous ducts. In more severe cases you must consult to your doctor and follow his prescribed medicines. You should contact to a dermatologist if you are suffering from severe acne. Mild to moderate acne can be easily treated with the application of herbal supplements, some pharmaceuticals product or some natural products.