hair gel vs toiletry

hair gel and toiletry both are nouns.

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

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

hair gel: jellylike substance used in hair styling
toiletry: artifacts used in making your toilet (washing and taking care of your body)

Other hypernyms of hair gel include toilet articles.

hair gel (noun)	toiletry (noun)
jellylike substance used in hair styling	artifacts used in making your toilet (washing and taking care of your body)