Natural hair, and human hair extensions which are made from natural hair, are prone to frizz as a result of the humidity present in the atmosphere. Apart from humidity, excess use of chemicals also dries up the cuticles and lifts them up, resulting in uneven moisture absorption, which is a feature of frizz in hair. Curly or coarse hair becomes frizzy more easily since the proteins in these types of hair are not distributed evenly. Frizz causes the moisture in the human hair extensions to become uneven, resulting in swellings at places where there is an excess of moisture. The human hair extensions look bumpy and shabby as a result. Also, since the distances between the human hair extensions and the scalp are unequal, the human hair extensions lose their grip and are prone to slippage, which results in shedding of hair. To prevent the hair from becoming frizzy, moisturize the human hair extensions by conditioning them regularly. In case the human hair extensions are prone to frizz despite the best of precautions, coat them with anti-frizz products available in the market. These products not only retain essential moisture, but also impart luster to the human hair extensions.