Filler for upper cheek lines? (Photo)

I've had Botox since I was 24 (I'm 40) for crows feet, forehead lines and bunny lines. I have strong squint so my bunny lines are extremely resistant to Botox. My crows feet close to my eyes I like as they are a feature of my smile but I don't like the lines that have formed as a result of volume loss. I'm worried as it's over cheek area that perlane may be visible at rest.

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