Wilkinson Sword submitted evidence disputing Gillette's claim that pulses produced by the razor "stimulates hair upward and away from the skin, making it dramatically easier to shave more thoroughly in one easy power stroke".
The judge granted the temporary injunction forcing Gillette to remove claims about the produce from its packaging and marketing. The temporary ruling stands until the judge receives Gillette's response at which point a final ruling will be made.
Wilkinson Sword's European vice-president Colin Hutchison said the company went to a German court to get a speedy resolution, and it could now launch court action in the other countries Gillette operates in.
It is the latest in a series of legal blows the two have exchanged. Gillette tried to stop Dutch ads for Wilkinson Sword's four-blade Quattro, but failed after Wilkinson filed a countersuit. The judge ruled that claims in both ads should not necessarily be believed.
At the start of the year, US courts also thwarted legal action by Gillette, which tried to prevent Wilkinson Sword from selling Quattro altogether. Gillette took out a preliminary injunction to halt sales of the Quattro in the US, where it has been the number-one selling razor since its launch in September.
Wilkinson Sword accounts for nearly 20% of the UK's 拢261m shaving market, against Gillette's 69%.
Gillette's worldwide media buying account is held by MindShare and AMV handles its UK creative.
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