How do I recognise Real Marseille Soap? As you know, there are so many counterfeits when it comes to Traditional Marseille Soap. Most soap sold as “Marseille soap” has nothing to do with the original soap and its traditional soap-making methods. This is because “Marseille soap” is not a protected appellation. There are several key points to help you recognise real Marseille soap. So how do we identify real Marseille soap?