I've had med spa consults where all three were suggested however still not clear on these technologies. Do they target different layers of skin? Do they target different parts of the body and face? Do they address same or different concerns? Are they complimentary or best used in conjuction? Can someone please explain how they work and what they address? My concerns are skin tightening/laxity on both face and body, crepiness on eyelids, hands, and joint areas and cellulite on thighs, belly and butt.