Hello!
i've done laser hair removal and its great! i did my legs, underarms and bikini. only negative is the price. in order to completely remove the hair, you will need to do between 6 and 10 sessions depending on your skin type and how coarse your hair is....it cost me $300 per session....and do not go anywhere but a dermatologist! otherwise, going to a salon, spa, etc, you are risking getting burned...i got minor burn on my leg because the nurse set the laser tool too high....
one other thing...there are certain parts of your body that you cannot get laser done because of either the sensitivity or risk....such as eyebrows, etc...i think that the upper lip is one of them....go for a consultation and they will let you know....