skincare vs facial

skincare and facial both are nouns.

Word	Noun	Adjective	Verb	Adverb
skincare	Yes	No	No	No
facial	Yes	Yes	No	No

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

skincare: care for the skin
facial: care for the face that usually involves cleansing and massage and the application of cosmetic creams

skincare (noun)	facial (noun)
care for the skin	care for the face that usually involves cleansing and massage and the application of cosmetic creams
	cranial nerve that supplies facial muscles

skincare (adjective)	facial (adjective)
	of or concerning the face
	of or pertaining to the outside surface of an object