Will MoldZyme remove the black mold stains from the caulk between my tub and tiles?
MoldZyme will remove mold stains from caulk; however in most cases the black stain you see is not mold or mildew but actually damage to the caulk caused by chlorine-based products. The only solution is to remove the old caulk, replace it with new, mold-proof caulk, and only use MoldZyme to clean your tub, shower and tile.