I haven't been doing eyebrows for very long and one of my clients who is 85 years old has asked to book in for her eyebrows shaping. They are very coarse and bushy and the skin on her eyes is very loose. I can do waxing and threading but have not done either of these on someone of this age before. I am reluctant to thread as am worried her skin will get caught and am also worried about waxing because the skin is so loose but I guess as long as I pull the skin very tight it should be OK. I would be grateful if anyone can give me some advice on how to achieve the best result.