Long-term Effectiveness of Pixel?

I am considering a Pixel treatment on my face to help with texture, large pores, fine lines, and sun damage. I'm 37, very fair skinned with freckles, and sensitive skin. I am wondering if there have been any long-term studies performed on this treatment to determine whether or not things might "go bad" from this procedure after a few years; not simply a reversal of the treatment, but worse skin overall.

I know it must be very difficult to determine what a person's skin would have looked like in 5 years if she had never performed the treatment or if she HAS performed it. Yet, there must be some way to determine the long-term benefits vs. liabilities.

When a doctor says the results will probably last for, say, a year, do they mean your skin is constant one year ahead of where it would be had you not done it, or in two years the skin will have simply aged around 2 years? Is the nature of the results of these fractional lasers to "revert" at some point, for the possibility of unwanted effects years down the road? Are you constantly "ahead of the game", or does no one really know? I'd appreciate an honest answer, this seems a little like the elephant in the room. I may be mistaken but I don't think the FDA requires long-term studies? Thanks so much for your advice, it's much appreciated.

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