Jenny did a great job at facial threading, and offered some kind suggestions for my acne afterwards, which I appreciated. However, she waxed my upper lip to remove some very small hairs, without first asking me if I used any retinoids/retinol (as is expected standard procedure) and now I have ended up with burn marks above my upper lip, which are very visible unfortunately. I am surprised she proceeded to use facial wax on my face, even though she could tell my face is very sensitive.