How long does threading last?
Depending on your hair type and area of the face, full re-growth can be anywhere from 2 to 8 weeks. Hair will start to grow back sparse and finer after repeated threading because hair is pulled out at the root, which weakened it. You can get re-threaded as soon hair grows just above the skin, whereas with waxing the hair needs to be at least 2/8″ long before it can be removed again.
