What is the best solution to put on mold

[Bienes Raices]

There is some mold behind the baseboards due to water intrusion and I've been advised to remove all the baseboards and clean the mold behind them. I was advised to use a "biocide" but later I found that seems to be a generic term for a lot of things.

EPA says not to use bleach, to use detergent instead. Has anyone tried this--do they just mean regular laundry detergent?

I have also read to use a mixture of hydrogen peroxide and boric acid.

Not sure what to do at this point. I don't want to make it worse than it is. It's not black mold--it has a greenish color.