Where can I find Activia^® in Heathrow?

Activia can also be found in these cities:

Ashford Brentford Carshalton Epsom Hampton Harrow Hounslow Isleworth Iver London Morden Northolt Sutton Teddington Twickenham Uxbridge Watford Wembley Winkfield Row Worcester Park invalidcity

You can also find this in Heathrow:

Confectionery Wine Tobacco Vegetables Fruit Snacks Frozen Food Eggs Soft Drinks Confectionery