face soap vs toilet soap

face soap and toilet soap both are nouns.

Word	Noun	Adjective	Verb	Adverb
face soap	Yes	No	No	No
toilet soap	Yes	No	No	No

As nouns, face soap and toilet soap are synonyms defined as:

Other synonyms of face soap include bath soap.

face soap (noun)	toilet soap (noun)
soap used as a toiletry	soap used as a toiletry