I felt that this product worked very well in the beginning. The product went on very smoothly and my nails were less prone to breaking. It even worked well as a base coat. Over time however, I found that the calcium gel gets more tacky and harder to apply until eventually it gets hard. So I would recommend using this product within 6 months for best results. When the gel gets tacky, it’s no longer suitable to use as a base coat as it will cause whatever nail varnish you apply next to look streaky and messy. As the product gets older, the tendency to leave “bubbles” also increases.

Another downside to this product is that it tends to chip within 3-4 days and when it does, the exposed nail is in danger of breaking off/chipping again. This product only works when it’s on your nails, it doesn’t actually make your nail itself stronger.