can tanning help my scars ?

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So I want to get tan for the summer and swim party's that are coming up and I want to know if sun tanning can help with acne scars or just  acne in general (on my back and thighs) and I know about skin cancer and all that but I mean I live in Texas so I'm gonna get tan either way but I just want to know if it'll help my scars. And how long it would take to get tan.