It's important to use a detergent specifically designed for sheepskin when washing a sheepskin saddle pad or girth because regular detergents can be too harsh and can damage the wool. Regular detergents often contain chemicals that are designed to remove tough stains and dirt, but these chemicals can also strip the wool of its natural oils and moisture, which can cause the wool to become brittle, dry, and stiff. This can lead to the wool losing its softness, fluffiness, and support, and can cause the saddle pad or girth to lose its shape and become uncomfortable for the horse.
In contrast, detergents specifically designed for sheepskin are formulated to be gentle and moisturizing, and are designed to preserve the natural oils and moisture of the wool. These detergents can effectively clean the wool without damaging it, and can help to maintain the softness, fluffiness, and support of the wool. By using a detergent specifically designed for sheepskin, you can help to protect the wool and maintain the shape, support, and comfort of your sheepskin saddle pad or girth.