Natural Dishwashing Liquid - The all-natural line of dishwashing liquid is available in original, water lily, tangerine, free & clear, and simply lemon scents and can be used on any cooking and eating surface.
If the stone soap or dishwashing liquid doesn't eliminate the stain immediately, combine a mixture of one to two tablespoons of liquid dish soap, a cup of flour and enough water to make a paste-like substance.
Many recipes call for variations on the standard recipe of one gallon of vinegar, such as adding one ounce of dishwashing liquid, or one cup of salt, or one cup of lemon juice, or one ounce of essential oil.
If you do not have a commercial enzyme cleaner, many pet parents have removed cat urine using common household products including baking soda, hydrogen peroxide, white vinegar and dishwashing detergent.
You can use some of these methods on carpet, however, the easier process to deal with a dried blood stain on carpet is to use dishwashing soap and gently work it into the stained area with your finger.