Enzyme-based stain treatment products and detergents like Heritage Park Fine Laundry detergent are highly effective at removing stains (particularly protein-based stains such blood, body fluids, dairy products, egg) and can be used regularly to launder most fabrics. These enzyme-based treatments and detergents can also be used sparingly to treat stains on protein-based fabrics such as silk or wool. For regular laundering of wool and silk, we recommend an enzyme-free detergent such as Fine Silk and Wool Detergent from Heritage Park.