Chitosan based products have been failed in numerous medical trials and researches despite of claiming the reduction in weight. However, most of the best designed medical studies on Chitosan have failed to find out its advantages regardless of positive results obtained in preliminary analysis. This important medical study had time span of six months and involves 250 overweight people. After that, it was in 1878 while Ledderhose recognized chitin to be composed of glucosamine as well as acetic acid; it was not in fact until 1894 that Hoppe-Seyler identified the oriented chitin, chitosan. In the beginning of twentieth century, a number of inquiries and searches considered chitosan as their theme of schoolwork. An ordinary Chitosan generally takes about an hour to be soluble in the stomach acid. In contrast, the LipoSan Ultra Chitosan only needs less than a minute to become soluble in stomach acid. Moreover, it has been recognized by several researchers that high solubility rate of this product in stomach acid results in enhancement of its binding ability. based in Southern California is one of the well known companies producing nutritional supplements including Natrol Chitosan. In fact, this company not only manufactures but also advertises its high quality and branded Chitosan supplements. This manufacturing company is now producing its own Natrol Chitosan capsules along with many other weight controlling tablets. The polyvinyl alcohol-chitosan mixed celluloids are generally made from: The polyvinyl alcohol (PVA). Chitosans (Cs) with changeable concentrations. For additional prominence, the alcohol-chitosan mingle films were manufactured by drawing the individual polymer results. The recognized glutaraldehyde was applied as a type of cross-linking instrument. Furthermore, nowadays they consider that their weight loss products composed of chitosan are just fat substances that emerge to toil happenings for those in hunt of a secure mode to drop that body fat. You must be wondering what is chitosan; it actually is available for so many years and has long been regarded as an influential weight loss resolution.