The 22 year old, who works at Tweedie & Marshall Hairdressing in Falkirk, beat hundreds of hairdressers across the country when she was selected as one of the final six contestants.
Justine was chosen after impressing industry judges with her enthusiasm, confidence and creativity.
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Over the course of the year, Justine and her Schwarzkopf colleagues will train with top hairdressers and work at various high-profile hair and fashion events.
She said: “Winning this means so much to me and I am so excited to get stuck in and learn!”
Anthony Tweedie said: “We are all so proud of Justine for winning – it truly is a fantastic achievement.”