If a provider names a product, it's worth knowing what that name does and doesn't tell you. Restylane Kysse is a hyaluronic acid filler, described as giving a defined contour with flexible-looking movement, and it comes in a 1.0 mL syringe.
What a product name won't tell you is placement. The same product can be used for quite different shapes, so "where would it go, and how much?" still matters more than the brand.
LookPrep has a Restylane Kysse preview page where you can see amounts from 0.5 to 2.0 mL on demo faces, mapped loosely to looks like cherry, keyhole, butterfly, natural and bow-tie lips. Two caveats it states itself: it renders product and dose, not placement, and it isn't a product recommendation. LookPrep is independent and not affiliated with any manufacturer.
Use it to get your questions straight before you go back. Your provider is the one who decides what's suitable for you.
Sofia R., LookPrep