How do you remove black mold spots around edge of bathtub?

spray the mold with white vinegar

Bleach and elbow grease.

Did you have mold issues before the bath fitters were installed? If you have mold growing behind the bath fitter, it will need to be dealt with

A product called H G moild remover works very well just follow simple instructions. From hardware stores.

I use a cleaner with bleach, and if that isn't strong enough, I use straight bleach and use a toothbrush to scrub. Sometimes the mold comes up, but leaves a slight dark stain behind. I apply bleach with a Q-Tip - dabbing it just on the stain. It may take a few times doing this over a period of several days, but it works for me. Good luck!

After I did research a few years ago, I found that white vinegar kills the roots of mold, whereas bleach does not. I heavily sprayed the vinegar on the mold, let sit, resprayed a few times, then cleaned it with more vibegar. The mold never returned. I hope this helps.

I soaked a few cotton balls in bleach and pushed them against the mold. Works on vertical places, too, though you may have to wring out some of the bleach. Let sit a few hours. Good luck!

I did what Susie did but left cotton balls over night, worked great with no scrubing

The bleach will de-colorize the mold, to apply it, you can use the cotton balls or paint it on with a brush. Rinse the next morning and then spray it with vinegar. The vinegar will kill the mold and spores.

Spray with vinegar.