More often than not, we are besieged with commercial advertisements that claim to do miraculous work with their different brands of shampoos. Million dollars have been spent to create hypes after hypes inasmuch as they provide more fictions than facts about their shampoos. Below there are some of the most common myths found with your shampoo. 1. Hair Types When you read the commercial literature, talk with your sales girls, advertisement pamphlets, you are more often advised to buy your shampoo according to your hair types. However, this seems to be another marketing technique that is commonly adopted by big shampoo companies to create more market segmentations in order to sell their products. The truth is that the categories are created much more than you need. The logic is that the differences in terms of their ingredients are minimal. In fact, those shampoos have to share a lot more common ingredients such as surfactants, quaternary ammonium compounds, conditioning properties, sodium lauryl sulfate, water-binding properties, and preservatives in order to cleanse your hair and give your hair the best condition. 2. Natural Extracts Herbal extract such as aloe vera appears to be another boosting factor that is commonly accepted as an important element in choosing your shampoos. Some elements that are contained in certain herbal extracts can be very benefit to your hair shafts. For example, anti-inflammatory elements and antioxidant. However, the truth is that those elements are easily wiped off when you try to rinse your hair after applying the shampoo during your shower. The fact is that they just do not 'stick' on your hair! Besides, some herbal extracts may do more harm than you expect. I will try to evaluate some of them in the near future. 3. Multi Vitamins Besides those things mentioned above, you would find that vitamins not only could be taken orally in the nutritional industry but also can be applied to your hair shafts. The most common belief is that vitamin can nourish your hair. Nevertheless, there is no scientific research proving their effectiveness for hair care. The logic is simple. The process of digesting and absorbing a vitamin by oral can be very complicated. I would say too complicated! Such a process, which does much better by taking the vitamin orally, can hardly be transferred to external application. Furthermore, the ratio of vitamin that can provide protection or nourishment to a single hair shaft is minimal if compared with taking the vitamin orally. In short, the amount of vitamin is just insufficient to cover the amount of your hair shafts.