In days gone by, nothing went to waste in the standard homestead, and this included the liquid leftover after churning butter. You might be surprised to learn there is no butter, per se, in buttermilk, and it is lower in fat than sweet milk. It was usually flecked with tiny spots of sweet, creamy butter that didn't quite make it to the top to be skimmed.Buttermilk soap is especially good for people that have had dry skin, or develop dry skin from the sun or air-conditioning. Skin should never be dried out as it becomes more prone to lines and wrinkles.
Please note that due to the amazing high amounts of fat and moisturising oils in this product (exactly what you need for dry skin), as well as the lack of harmful single-use plastic packaging, the box that your soap comes in may have wet looking markings on it. Please note that your product is not faulty - this just proves it contains a great number of essential ingredients! This will happen most when the weather is warm.