In Québec, il n’y a rien à son épreuve means:
There’s nothing he can’t face,
Nothing can bring him down,
There’s nothing he can’t handle,
Nothing can stop him, etc.
Similarly:
Il n’y a rien à mon épreuve!
There’s nothing I can’t face!
Of course, one of the things that really helps you to face any situation is having amazing hair.
Or at least that’s how it is for Eva Mendes. In an article from Elle Québec, she says:
Quand j’ai une chevelure du tonnerre, il n’y a rien à mon épreuve! (When I have a fantastic hairstyle, nothing can stop me!)
