Boost Juice Bars UK, the juice and smoothie bar operator, which is backed by the Business Growth Fund (BGF), has opened a flagship central London site.

The 18-strong group has re-opened the former Cornish Bakehouse unit in Oxford Street.

The company, which received £2.5m of investment in December 2012, plans to expand to 50 stores in the next four years.

Boost Juice Bars UK was founded in 2007 when Richard and Dawn O’Sullivan, the team behind Millies Cookies, acquired the rights to operate Boost Juice Bars in the UK and the Republic of Ireland.