This is what the website says...
The new product for upper and lower lashes that your clients will love! Now you have everything you need to make your clients eyes even more beautiful and dramatic. Specially designed with a sensational outer corner flick, C-Curl allows your work to be more pronounced and creative. In fact, C-Curl has been developed in such a way that even people with downward lashes and heavy eyelids can enjoy an incredible open-eye look.
I am assuming downward means top lashes pointing down?