In my experience nothing completely got rid of the skunk smell on Zoee. Maybe because of her double coat. But it took almost 6 months before she was skunk free. I did the above recipe several times, plus other shampoos many times. Of course it took me a few days to realize she had got it in her ear. That's where a lot of the smell was coming from and it's pretty difficult to get the ears cleaned out real well.
Now my brothers shorthaired dog was skunked and a simple washing and letting the shampoo sit on him for about 10 minutes worked for him. It was having him sit still for 10 minutes in the tub that was the tricky part. LOL