A fixer is a must for those that have tough to curl stick straight lashes! Curl your lashes, apply the fixer sparingly, apply your mascara and you've got a curl that last for most of your day! I apply to mostly to the bottom of my upper lashes to hold the curl, as applying too much on your entire lash can weigh your lashes down. Be careful how much you put on as the product is thick and a heavy hand can result in thick spider lashes. It do find it takes a bit to take the fixer off at the end of the day. I've learned to use an oil based makeup remover and soak my lashes for a minute or two to remove the product.