hair mousse vs toiletry

hair mousse and toiletry both are nouns.

Word	Noun	Adjective	Verb	Adverb
hair mousse	Yes	No	No	No
toiletry	Yes	No	No	No

As nouns, toiletry is a hypernym of hair mousse; that is, toiletry is a word with a broader meaning than hair mousse:

hair mousse: toiletry consisting of an aerosol foam used in hair styling
toiletry: artifacts used in making your toilet (washing and taking care of your body)

Other hypernyms of hair mousse include toilet articles.

hair mousse (noun)	toiletry (noun)
toiletry consisting of an aerosol foam used in hair styling	artifacts used in making your toilet (washing and taking care of your body)