What are the results of silikon 1000 for acne scars over time?

I went to a doctor to ask about silikon injections for acne scars. She didn't discourage me from getting them, but she told me that she wanted to be honest with how the results would be over time. She said that after time as I age, my face will lose fat and the scars will begin to show again. She said because you can't get more silikon injections, she suggested a co2 laser every year as sort of a preventive treatment for this happening. Would you agree with these statements?

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