The best replacement for methylene blue is indigo carmine.

The best alternatives to methylene blue are rated as following:

★★★★★	indigo carmine
★★★★★	malachite green
★★★	trypan blue
★★	potassium perm
★★	iodine
★★	safranin
★★	isosulfan
★	new methylene blue
★	methylene blue
★	patent blue
★	methyl red
★	potassium permanganate
★	crystal violet
★	ethidium bromide
★	lymphazurin
	congo red
	methyl orange
	maroxy
	fluorescein which is more polar

Your alternative for methylene blue is not listed? Suggest!

Speaking about methylene blue, one probably shouldn't forget about yeast experiment.

Other search terms related to methylene blue and their ratings are:

★★★★★	yeast experiment
★★★	yeast

You have in mind a companion for methylene blue and it is not yet here? Propose!

Google Trends

Scale is based on the average worldwide traffic of methylene blue in all years. Click on graph for more.

methylene blue

indigo carmine

malachite green