I've suffered from bad skin most of my teenage years as my skin is very sensitive and dry. I got suspicious that maybe all the skin treatments I was using were only making the situation worse. I tried to make my own shampoo out of natural soap and vinegar but it wasn't an amazing long term solution. I then found an organic shop down the road from me and they sell the most amazing soaps and shampoos which are all natural and free from detergents and man made chemicals. I now always get told that my hair looks beautiful and my skin has mostly cleared up. I wouldn't say it was an amazing quick fix because I still have problems and despite using shea butter and olive oil I still find that natural substitutes don't tend to be as good moisturisers as man made ones such as E45. Otherwise I would agree that detergent shampoos and beauty products are completely unneccessary in this day and age.