bath powder vs toilet powder

bath powder and toilet powder both are nouns.

Word	Noun	Adjective	Verb	Adverb
bath powder	Yes	No	No	No
toilet powder	Yes	No	No	No

As nouns, bath powder and toilet powder are synonyms defined as:

bath powder and toilet powder: a fine powder for spreading on the body (as after bathing)

Other synonyms of bath powder include dusting powder.

bath powder (noun)	toilet powder (noun)
a fine powder for spreading on the body (as after bathing)	a fine powder for spreading on the body (as after bathing)