I received a 14ml sample of this from my dermatologist (they have a 'lolly jar' at reception, filled with samples which I can never resist!) I've managed to get quite a few uses out of this size. What I like most about it is its high SPF and my skin has never burnt when I've used it.
I've only used it on my face. It is a thick white cream but it feels like you are using a normal face cream when you first apply it. I do find it sits quite heavily on my skin as I like to apply sunscreen generously. You definitely know it is a sunscreen as it has that distinctive smell. I haven't used this under makeup as I don't feel like this mattes down enough. Neutrogena do other, lighter facial sunscreens which I feel are better suited for wearing under makeup. Having said that, I would purchase this for using on bare faced days as my skin didn't react to it and most importantly it didn't burn.
This is a great sunblock if you're really worried about reacting to the cream. I use this on any new-ish tattoos in order to preserve the colour while not having to worry about irritating the skin. I also love how light it is when applied, and so for that reason use it for my face. It doesn't leave the icky oily feeling that a lot of sunblocks tend to do - woohoo!
Tips: Great for healed up tattoos