Pernod Ricard UK is looking to revitalize its entry-level Martell VS cognac brand with a re-launch next month (May) taking in new liquid and a new-look bottle. Martell VS was once the biggest-selling VS (or three-star) cognac in the off-trade, but sales of Courvoisier VS are more than three times’ bigger in a UK cognac market in which VS accounts for about 80% of sales.