Does just one use of Celle Diem really relieve inner dryness? I'm also curious who it's recommended for.

Lately, when I wake up, my cheeks feel incredibly tight as if they’re tearing, and the texture is so rough that it just makes me sigh. Even when I try layering creams on the surface, they just sit on the surface quickly because they lack the firming power from within. That’s why I’ve scheduled a Celle Diem treatment. Is it true that it strengthens the skin from deep within? I heard it helps with inner dryness and refines the texture, so I’m half excited and half worried. I’m wondering if just one Celle Diem session is usually enough to relieve inner tightness, or if I need at least three consecutive sessions to see a synergistic effect. I’m also curious if it’s a good idea to immediately apply a hydrating pack for soothing care on the same day of the treatment. Please share any tips you have regarding Celle Diem.