Tizer is going back to its roots with a more fruity formulation aimed at mothers.
The soft drink is now made with 10% fruit juice and has new packaging based on the 1980s design that will flag up the fact that Tizer now contains no artificial colours, flavourings or sweeteners.
Red fruit has been added to give the fizzy drink its characteristic colour, but more naturally.
Tizer is the latest in a line of brands capitalising on a retro revival, including Mateus, Spam and Blue Nun.
AG Barr is supporting the relaunch with a £1m spend on national advertising and sampling.