lotion vs hand lotion

lotion and hand lotion both are nouns.

Word	Noun	Adjective	Verb	Adverb
lotion	Yes	No	No	No
hand lotion	Yes	No	No	No

As nouns, hand lotion is a hyponym of lotion; that is, hand lotion is a word with a more specific, narrower meaning than lotion:

Other hyponyms of lotion include after-shave, after-shave lotion, body lotion, toner.

lotion (noun)	hand lotion (noun)
any of various cosmetic preparations that are applied to the skin	lotion used to soften the hands
liquid preparation having a soothing or antiseptic or medicinal action when applied to the skin