I have been using the 9-5 range for quite some time and trust me if I had not spent all that money buying 5 different shades of it I would have thrown it all out. It is very easy to apply and it does provide the matte finish that it claims but at the expense of drying your lips. I have noticed that it provides absolutely no moisturising what so ever and my lips tend to become dry and chappy after a few hours. Not sensitive at all. The irony of it is that it stays on for barely 2-3 hours after application that is if you don’t eat or drink anything .