"i used yaz for about a year and it was obviously effective for preventing pregnancy and it did clear up my skin but for me there were a few negative side effects.  it took a while for me to realize it was the yaz causing the problems.  i suddenly had very brittle dry hair that would break off and it just didn&#039;t seem to grow very much.  my cuticles became very dry which caused my nails to become more apt to breakage.  my eyes were very dry and i had to use eye drops several times a day.  i have been off of yaz for about 3 weeks and already my hair is so much healthier and seems to be growing back in and my nails have not broken in a few weeks.  i have gone from using eye drops a few times a day to a few times a week.  the down side of being off of yaz is my skin has broken out more but i can deal with that better than all the other symptoms."