cleanser vs cleaner

cleanser and cleaner both are nouns.

Word	Noun	Adjective	Verb	Adverb
cleanser	Yes	No	No	No
cleaner	Yes	No	No	No

As nouns, cleanser and cleaner are synonyms defined as:

Other synonyms of cleanser include cleansing agent.

cleanser (noun)	cleaner (noun)
a preparation used in cleaning something	a preparation used in cleaning something
	someone whose occupation is cleaning
	the operator of dry-cleaning establishment