Both the joint and the stains on the ceiling ... The bathroom has really become like new. Already when applied with a brush, the spots have faded on the ceiling and no longer be seen after a short time. The tile joints are bright again .... No but really to recognize no foxing. I'm excited ... and our tenants also ... After nearly 30 years the bath has again become really beautiful. Once the cause has been found and eliminated for the mold, we have a few new fixtures, shower and towel racks donated and are more than satisfied. Now remains to be seen whether the mold Stop also keeps its promises. After 4 weeks, which is the case at least so far ... Therefore, 5 stars for the complete set !!!!