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How to make dog shampoo
Wash your dog with dish soap, vinegar, and glycerin.
A simple, all purpose dog shampoo can be made using one cup of dish soap, one cup of apple cider vinegar, and 2 ounces of glycerin. Glycerin is a form of sugar alcohol you can purchase online or at a drug store.
You will also want jars to mix your shampoo, and an empty shampoo bottle to put it in when you're finished. Pour all your ingredients into a jar, making sure to pour the dish soap first.