Girls, do you have any remedies for stretch marks?

So I've had stretch marks on my hips and butt for a couple months now, but they're still reddish/purple. With summer coming up I was hoping to decrease the visibility of them. I wasn't looking to spend more than $15. I've already tried cocoa butter and it didn't work. Any tips would be greatly appreciated!
Girls, do you have any remedies for stretch marks?
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