She sparked concern among fans when she displayed a slimmer physique at the ARIA Awards earlier this week.
But Ruby Rose put on a defiant display when she attended the Sydney premiere of her latest film, Pitch Perfect 3, on Wednesday, donning a shimmery black dress.
The 31-year-old's actress made a statement in the strapless number, which highlighted her extensive body art.
She wore her brunette bob slicked back from her face and accessorised with a silver necklace.