I had some issue with mold in my bathroom especially near the sealant area and so i gave the above HCL89 from http://hcl89.byethost10.com a try
One issue i always had with the mold in the past was that it always seems to come back no matter how many times i cleaned the area
After using the HCL89, the mold had totally vanished and did not reoccur, the product seems to have settled the reoccurring mold issue for me