Both men and women have hair on their upper lips. Extra hair growth may be caused by stress, a bad diet, or hormonal changes. As the procedures or techniques used for the removal of hair on upper lips may be very uncomfortable and harsh.

What causes upper lip hair growth?
"Lips are the only area of our body where hair development is the least expected for women. When upper lip hair grows, put it down to hormonal and inborn causes. Furthermore, Polycystic Ovary Syndrome, a prevalent condition in women, has been shown to hasten the growth of facial hair", says Ruchita Acharya, the founder of Glow & Green.