I have used this product for about three years. First when it is delivered there is leaking that takes place just because the manufacturer has not tightened the top. This has happened about a quarter of the time. Next the product itself is outstanding for the first half of the bottle. Then it thickens and doesn’t dry properly. I start a new bottle. I have never been able to grow finger nails but with this product , they grow to the point where I actually need to file them down. So if the entire bottle was actually useable and the manufacturer screwed the tops on tightly I would have given it 5 stars.
This base is one of the best I've used. My nails were still beautiful after two weeks using the essie gel nail polish putting an additional top coat on after every three days. No chips, no wear with this base coat. Was very pleased and glad I got the four bottles. Highly recommend. Very hard to find.