Joining the likes of Blake Lively, Julianne Moore and Jennifer Lopez in her new role, Susan will be the spokeswoman for the Age Perfect skin care and hair colour range.

"The brand has always been a leader in helping in the empowerment and development of women," the 69-year-old beamed in a statement. "The very first time I heard 'Because I'm Worth It' (the brand's motto), it definitely was a shift in the framing of why you should look good. It had to do with women becoming the master of their own lives and decisions.

"It's an extremely powerful statement that has transcended time. Beauty comes from the inside; it's a state of mind. I'm proud to be a part of their message and to represent the L'Oréal Paris woman."

And just like her fellow ambassador Helen Mirren, Susan is known for her natural beauty and embracing the ageing process - not fighting it with endless rounds of preventative measures.

"I look forward to being older, when what you look like becomes less and less an issue, and what you are is the point," she explained.

Picking Susan for the role ahead of her peers was an easy choice for L'Oréal, with brand bosses valuing her work away from the screen just as much as her acting roles.

"Susan is a cinematic icon," Cyril Chapuy, L'Oréal Paris brand global president, smiled. "She is strong, charismatic and talented, and has a compelling sense of self. Her outspoken activism, captivating film work and authentic charm continue to inspire women to be fearless and believe in their convictions."