Front and rear calipers...whats the correct method to use to regrease them so they dont "stick" anymore...what stuff should I use? Thanks!

Which part is stuck? The caliper pins OR the piston(s)?

Shit i dunno...it feels wierd tho...like i can press the pedal down once and the right rear will squeek, then i'll quickly release and re-apply the same amount of brake pressure it doesnt squeek anymore. I'm just thinkin something is stickin there?