2 of 3 people found the following review helpful
Reasonably effective - but don't expect miracles!,
Customer review from the Amazon Vine Programme (What's this?)
The label claims it works on white grout. Brilliant I thought! This should brighten up the rather shabby looking tiles in my kitchen. So I sprayed it on (noticing the extremely pungent bleachy smell), waited around 3 minutes, then carefully wiped away the residue. Result? Hmmm... perhaps a bit brighter looking than before, but the black spots of ingrained mould in the grout, continued to stare at me reproachfully and were as black as ever. Looks like that was a job too far and I'll have to do some fresh grouting. Well onwards and upwards - or rather downwards in this case; I next used this product around and particularly under the sink, where it performed much better - clearing out the mould and even the mouldy smell. Only time will tell if this helps prevent mould from reappearing.
I appreciate that my expectations were too high and I will happily acknowledge that this is effective enough on mould and mildew - provided it's not too advanced or ingrained.