One lipstick goes through many weddings over a season.
If it touched another bride's lips before yours, it would pick up whatever was on them and leave it in the product, and if she were starting a cold sore, she could pass it on to you. That is why the lipstick never touches anyone: I take the colour out with a disposable applicator, place it on a stainless-steel palette and work from there for your lips. I do the same with mascara, with a fresh disposable wand for each person.
If you want to know what else I use at a wedding and how I clean it, I explain it in the article on makeup artist sanitation.
