When it comes to tips for getting ahead in the workplace, the most obvious might be to work hard, take initiative, always arrive on time and network.
But according to one female CEO, the secret might actually lie in the colour of your hair.
Eileen Carey, CEO of Glassbreakers, a diversity and inclusion enterprise software company, believes dyeing her blonde hair brown helped her in the workforce.
"When I first started my company and I was fundraising, I was given advice from a friend who just broke down in plain and simple terms perception and how I would be perceived," she recently told ABC News.
"I made the decision, based on research, to change my perception so that it improved the likelihood of being taken more seriously as a leader, as opposed to maybe as a sexual object."
The 31 year old told the BBC that being a brunette makes her "look older and I needed that, I felt, in order to be taken seriously."
She says in the tech industry, where sexism is still rife, it was a necessary change.
"I want to be seen as a business leader and not as a sexual object. Those lines are still crossed very often in this space," she said.