I have been using it for about a month and also use it on my [url=http://www.easymake-up.com/503-lower-lashes]lower lashes[/url]. I ordered 4 bottles and got 2 of the vega brushes. The brush seems to work well for me. I put a drop of the carprost on the top of the lid then rinse it off. I don't seem to be wasting that much of it by using the lid. I have noticed new growth. Just be careful about getting it in the corners of your eye, I had to pluck some hairs from there. After I put it in my eye, I use a q-tip to clean the corners my eyes. I have not had any major side effects except for my eyes feeling a little dry.