There are many reasons your eyelashes are sparse. Whether it's the cause of stress, hormones, or time itself, your lashes thin out as you age. Enter eyelash extensions—a quick way to add length and fullness to your lashes. Watch as we chat with CEO & Creative Director of NovaLash, Sophy Merszei, to see how eyelash extensions are applied. Also watch until the end to see the dramatic before and after