They are BOTH CO2 Fractional lasers. Different companies same wavelengths. Often companies claim that "deeper is better" for the tightening aspect. Deeper also means, longer recovery times and I have yet to see 1 study that shows it is necessary to achieve similar results.
There are many CO2 fractional lasers on the market today such as: "Affirm CO2 Micro Ablative" (which I have and LOVE IT!) and many more. My "Affirm CO2 is extremely comfortable as I can dial in the depth of penetration and proximity of 1 spot to another and is extremely fast with my scanner taking about 10-15 minutes for a full facial treatment. I also use what my patients tell me is by far the most comfortable on the market a "Frozen Air Cooling system" called a SmartCool 6.
So it would be great for you if they have this cooling feature which greatly increases your comfort and safety. Great questions! Multiple treatments to remove it all but very good results in just 1 treatment. Really depends on the individual skin conditions. Usually 1-2 with my unit. As far as brown spots,
I utilize an Alexandrite laser to remove benign brown pigmented lesions. In this way I can remove in 1 fast, inexpensive treatment and I check them for cancer 1st. It is critically important to have these checked by a Dermatologist before you "blast them off"! If they are precancerous or cancer and you remove all but a few cells you may have cancer and not know it as, it is this type of "indicator" (the spot) that us Dermatologists look for to screen you for cancer.
Always check before lasing over any suspicious spots or moles! I also utilize 3 forms of Photodynamic therapies to remove precancerous lesions with Levulan, L.E.D. IPL and my Cynergy Multiplex Dual (wavelength sequentially firing) Vascular laser (Which I feel is the Gold Standard" for vascular).
As far as, the CO2 Fractionals, Micro-ablatives, Same lasers really, it all depends on "who is operating it. Choose the most experienced doctor with a great selection of premier technologies.
