It’s a good question ,I don’t think so .
Xandrox contains Azelaic acid that inhibits the DHT ,and regular minoxidil doesn’t .
Maybe by using xandrox 5% you can maintain the results.
Well from what I hear 15% is a lot more expensive and a lot less cosmetically managable so if you can stand using it for a year or maybe even a half a year and then could use the 5% to maintain I think it might be a good idea.