How much lip filler for top lip? *pic included*

[Swiggless]

Hi all,

I feel insecure about the size of my top lip compared to my bottom lip and I'd like to enhance it slightly to make them a bit more even. Would 0.5ml be enough to balance them out? Or 1ml? TIA.

I'm suprised by the recommendations for fillers, they look very pretty, don't mess with them!