Hyaluronic acid is naturally present in the human body. One can say that it is the integral part of the cell. The highest concentration of hyaluronic acid is present in the eyes and the joints. Hyaluronic acid is also present in the bacteria and can be extracted in the laboratories. Hyaluronic acid is extensively used in the cosmetics. No side effects of hyaluronic acid are reported, until now. Hyaluronic acid preparations are used in fairness, and anti aging products, these are very commonly used by the people. All these products are safe, no matter in which form they are used. In some cases, adverse effects due to hyaluronic acid may be swelling, redness or heat in the specific areas. It is clearly stated by many researchers that individuals who are having sensitive skin may suffer from irritation. Hyaluronic acid is also used in the lip surgeries. Hyaluronic acid is involved in the migration and proliferation of few malignant tumors. However, very few people have reported about the allergic reactions due to hyaluronic acid. The increased amount of hyaluronic acid in the body cannot be harmful, because it is extensively present in the connective tissues, neural tissues and epithelial tissues of the human body. It is easily figured out by many people that extensive use of hyaluronic acid is of no harm. Scientists believe that misuse of hyaluronic acid can result in damaging the human skin, but no scientific proof is available, which can support this hypothesis.

If we go around searching for the side effects caused by the misuse  of the hyaluronic acid we will find nothing. The hyaluronic acid is already present throughout the body and increasing the amount of hyaluronic acid within the body cannot be of any harm. In few cases sometimes slight redness and pain may occur. Few doctors believe that misuse of hyaluronic acid helps in better joint movements. Hyaluronic acid if misused  may cause increased pressure in the eye or sometime allergic reactions occur in the skin. Allergic reactions may include vesicle formation in different areas of the body. Whereas according to recent research, hyaluronic acid is safe under all conditions. The drug is also considered safe for the pregnant women because no side effects are reported yet. It is also not known that the hyaluronic acid can pass through the breast milk. Not much data is available on the side effects of the hyaluronic acid. Normally, it is believed that the drug is excreted in the greater amount via urine. Few people may also believe that misuse of hyaluronic acid can increase working of the kidneys. The kidneys will have to work more for the excretion of the drug from the body.

Hyaluronic acid is extensively used in the anti-aging products, and it can be used directly on the body. According to many scientific journals, hyaluronic acid is very safe and can be used within limits. According to a survey which was carried out by few university students; people who have been using hyaluronic acid in greater amounts were having more fresh and glowing skin than the people who had never used hyaluronic acid. This finding is somewhat encouraging for those who use hyaluronic acid. Due to its high biocompatibility and its  presence in the  tissues, hyaluronan is used in bio engineering. Hyaluronic acid irrespective of the preparation is considered to be safe and has no side effect according to young researchers. Still many scientists and researchers are working on the effects of hyaluronic acid on the body.