If you have colored stains on your clothes that won't go away, you can try bleach. For white wool garments; use a solution with 3% hydrogen peroxide. Be careful with darker materials, as they may become discolored. In other words, this is not an ideal solution for dark colored clothing. A milder version you can try is using lemon soap, but this can also bleach darker materials. It is therefore important to not let the lemon soap sit for too long on our products in wool and silk.