There are a lot of videos and articles you can read on how to conceal your under-eye circles and here is another one as my own contribution. I do hope you find this helpful specially for Filipina girls like me.
Brushes shown in the video:
Ellana Flat Kabuki Brush
Elf Flat Top Foundation Brush
Landmark's Flat Kabuki Brush(Php149.00)
Marionnaud Angled Blush Brush