Hi! If you shave your facial hair, it will grow back thicker & darker. Women should not shave their hair. I know this lady who is blond and she shaves everyday. She was very happy to continue shaving; and she said that her hair grows back the same. From far, I could not see any facial hair on her face at all. One day, I asked to touch her face. I was so shocked when I touched her chin, that her hair was thick & bristly like a men's. And she did not even realized it. This was at 5 pm. I guess bc she's blonde, the hair was not visible. So no matter what, I think women should not shave. It does not matter what kind of razor they used - whether women's razor, or electric. As long as it is cutting the hair off at the surface, the hair will grow back coarser.
Women should only tweeze, wax or pluck their facial hair. I use Bellabe facial hair threader/remover from http://www.facialhairthreading.com
It is very inexpensive and very easy to use. It also does not damage the skin. It removes the hair from the roots and over time, the hair will actually grow back finer. So, if you shaved & you would like your hair to regrow finer, try this.