Can a woman who usually shaves her legs etc, and waxes her brows/lips a few days before tevilla, do so during the 9 days?
Yes she may, since she usually does it, it is considered needed for her tefilla.
Halichos Baiso 25 ftnt. 67 in the name of R’S. Z. Auerbach zt”l, Shiurei Shevet Halevi -Sikum Halachos 198-20(7).