Sweet tart is a lovely soft pink colour that is nicely pigmented, sometimes I look at pinks and think wow they look amazing then put them on my lips and you can barely see them, they just seem to add a tiny amount of shine to my lips but don't show pure pink colour, this does show and is a lovely summery colour.
It states to be long lasting and some reviews on boots show this to but i'm afraid I have not found this. I do find that its usually darker colours that stay put and lighter ones fade quicker but this doesn't bother me as such as I really like the colour and for under £3, can't really complain.
My lips were a little dry when I applied this. The formula of this is not very moisturising but enough not to dry out my lips anymore.
For the price I can't really complain and I do own a few more collection items and as a budget brand, I am happy.