Looking at the small print on the bottle the Bourjois varnish is meant to last 10 days with touch ups but a minimum of 3 days without. From this I am going with the idea that it should last perfectly for 3 days before you have to touch up. This seems doable, non? Especially for a product that is selling itself on it's lasting power.
On application I'm impressed. The brush has an angled tip which allows for easy application. I applied 3 coats to get a good solid colour on my nails. This is one of those products that names it's colours with numbers. If I were to give it a name it would be 'denim'. It also has a very subtle shimmer to it.
In natural light
With a flash-the shimmer is more obvious here
These are photos of my nails after 3 days:
The main wear is on the tips and around the base. The right hand wore more than the left. This might be because I'm right handed?! After three days wear going about my normal day to day life this isn't too bad. However from a product that is selling itself on lasting 10 days, yes with touch ups I know, I don't think it is that great. The bottle states that your nails should last a minimum of 3 days. I'd have expected the nails to still look near on perfect with 3 coats after 3 days for this kind of product. They'd have definitely not looked their best after 10!
Overall, I love the colour and the application is easy and fuss free. For a long lasting product though I'd stick with the Lycra Pro. This will do for normal wear and with a top coat, if I have time...