Many people who switch to shampoo bars often complain about their hair feeling greasy or waxy after use. It is not because the shampoo bar is not working but rather it is your scalp and hair adjusting to the new formulation. Most shampoo bars make use of organic and natural ingrediets, which is unlike the chemical shampoo you've been using most of your life. This is just part of the transition period and once your scalp has adjusted to the new shampoo bar you should have gorgeous hair in no time. If you hair feels waxy from using shampoo bars you can try using an apple cider vinegar rinse to help with the transition period.