oomis1105 -“I know for a fact that several women have had permanent eyeliner or eyebrows tatooed on, and in each case they asked shailas and were told it was halachically permissible, because it is NOT under the umbrella of k’soves kaaka, which was done in ancient times by Ovdei Avoda Zara as part of their rituals of A”Z.
The women who have permanent eyebrow makeup are primarily doing it for the purpose of replacing something that they are missing due to chemotherapy or skin conditions that destroyed the follicles. Others have permanent eyeliner or lipstick and sometimes flesh colors tatooed over an unsightly birthmark, which sounds very painful to me for them to do, but if they have a heter, who am I to judge?”
You bring two Heterim in your post:
1. It’s not K’soves Kaaka.
2. They need it due to a disfigurement.
If the #2 doesn’t apply, ie. they are doing it for beauty, even though there still is #1 – I hold it’s Ossur.
Why? Because it’s a waste of money -Baal Tashchis.