Australian entrepreneurs Alex Tomic and Nik Mirkovic were not yet 21 when they came up with an idea that would rank them among their country's youngest self-made multimillionaires and put their names on the lips of celebrities from Kylie Jenner to Conor McGregor.
The moment came at dinner one evening in 2014, shortly after Tomic had dropped out of his first semester of his undergrad studies. Within hours, the best friends had decided to pool their savings — a combined 20,000 Australian dollars (around $15,000) — and give it a go.
Three years on, their business has surpassed 50 million Australian dollars (almost $40 million) in sales, and last October their estimated $35 million joint fortune earned them the title of youngest new entrants on the Australia Financial Review's Young Rich List 2017.
Tomic and Mirkovic, now 24 and 23 respectively, are the guys behind HiSmile: the Australian teeth whitening start-up that shot to success on the back of social media marketing.