Barry M All-In-One - £2.99
This nail polish by Barry M is called All-In-One, in the sense that it is a base coat, topcoat and clear nail polish in one bottle. I've been using this for a while now as you can probably tell from the first picture. I'm about half way through the bottle and I've repurchased it maybe 2/3 times. :3
The thing I like the most about it is that you don't have to spend money buying 3 different polishes. This is great if you're on a budget like me. The problem I found with this polish is that the formula is very thin and I felt like it wasn't really protecting my nails.
My nails also tended to chip when I was wearing it, but that could have been due to the nail polish I was wearing at the time (which was No7, so if you want me to review it let me know). I still do wear it all the time just to give my nails whatever protection it has.
Really I don't think it would hurt for anyone to try it out. It's only £2.99 from Superdrug and the link to it is under the picture above!