I was wrong about the ammonia...
it's not in there but it leaves an ammonia smell. 35% peroxide and you are suppose to be able to leave it in. But I don't. I work on the spot...different spotters to try to get some movement and after everything else I do a quick rinse and mist with the Just Like Magic. Then I go to work in other areas and just before I leave I rinse the Just Like Magic out. But I know Mark leaves it in. I also do a lot of wool rugs so I'm more cautious and it is my habit to remove any chems I put down...except for fabric protectors. Seems to work faster than 4 hours though.
1. Clean Stained area to remove as much contamination as possible before treating with Just Like Magic.
2. Apply Just Like Magic “as is” to the stained area. Allow 5‐10 minutes dwell time. Agitate into the fibers with a spotting spatula or tamping brush after 3‐5 minutes. Blot with clean white absorbent towel. You should start to see the stain disappear. In certain cases it may require additional time to see the stain go completely away so do not judge the results until the spot has dried.
https://saigers.com/images/pdfs/just-like-magic.pdf