I'm not sure which goes deeper. I think they can both go as deep as the operator wants.
I know with dermabrasion if they go too deep, that is what produces scarring.
CO2 burns the skin. I know it can produce more scars but don't know if it's due to the improper healing of the burn, or if they do too many passes.
What scares me about CO2, is that it can produce a waxy appearance, which I *think* is scar tissue resulting from a burn. Burn scar tissue is probably even harder to get rid of than other forms of scarring IMHO.
That said, some people experience great results from CO2 laser, so it really depends on your skin, the practicioner, and your skin.
Emma



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