Laser question options between PicoSure laser and Fraxel or fully ablative CO2 laser (female late twenties, no wrinkles yet)?

What is most appropriate treatment for skin- issues: Face: Some mild hyperpigmentation around lips Some PIH (very small) Pores in cheeks (not very large or excessive) Mild discolouration in skintone Wants collagen, glow & even skintone Neck: Some small hyperpigmentation patches left after irritant contact dermatitis. Currently using pigmanorm Considering: Picosure, heard helps with pigmentation,collagen stimulation& pore reduction? Fraxel Fraxel for face, pico for neck? Or pico for both?