While going through my nail polish collection, I noticed that two of my polishes were sticky, clumpy and were not in its original consistency.
To fix this problem, I used SuperNail Nail Polish Thinner. I bought this at my local beauty supply store for about two dollars.
The directions say to use only a few drops, but in the condition that these polishes were in, I needed to put a lot more in. Once it was inside the polish bottle, I let it sit for a couple of seconds before shaking the bottle vigorously. I continued pouring in some of the thinner until I could hear the beads in the nail polish bottle move around freely.
And here is the finished product! It worked great.
In the pictures: Essie Ballet Slippers (left).....Essie BBF Best Boyfriend (right)
