Both products contain hyaluron, which binds moisture and creates small cushions of water that enhance the lubricating effect. This provides added lubrication, which is particularly important in the anal area as this part of the body does not naturally produce any lubrication. The ingredients in pjur BACK DOOR Moisturising, however, are more highly concentrated than in pjur analyse me! Moisturising, making it ideal for intensive anal sex.