Is the usage of 5% minoxidil topical lotion completely safe for long term permanent eyebrow growth? (photo)

My eyebrow are neither too thick nor too thin . I am happy with its shape even though I've never indulged in any particular grooming other than filling it up with brown liner. But my concern is that it is too thin ,almost negligible in d inner corner where my eyebrows supposed to start naturally. Therefore it appears as if the beginning section of my eyebrow is missing and it deeply affects the aesthetics of my face also considering the fact that I have bigger eyes.