If you want to lighten your hair, then a hair salon is an excellent place to have this done. Here are three benefits of lightening your hair at a hair salon. Lighten Your Hair Safely Lightening your hair can be a bit tricky. If your hair is super dark, it will take a few times to pull your hair as light as you'd like. It is also important to determine exactly how long the bleach should stay on your hair to lighten it without damaging it.