Mars is launching a limited edition orange variant of its Galaxy Bubbles chocolate bar.

The flavour orange ranked the highest out of various flavour variants in consumer tests and will be available from February, the company said.

The company has also launched an on-pack promotion called Win a Million Moments, offering customers a chance to win and choose from a prize fund of GBP13m (US$20m).

Each pack contains a unique code, which can be entered at www.galaxychocolate.co.uk, or sent via text.