I'm curious about the effects of Celre Diem.

Even after sleeping soundly for over 10 hours on the weekend, when I wake up, my face looks haggard and my complexion is completely ashen, as if I’ve been working overtime for days. In my 20s, my skin would give off a subtle glow even if I just applied basic skincare haphazardly, but now, even if I slather on a hydrating glow ampoule, my skin absorbs all the shine and remains dry and matte. The surface of my skin feels brittle and crackling like dried leaves, so when I stand under fluorescent lights, my unevenness and rough texture are clearly visible—to the point where I feel embarrassed for others to look at my face up close. Even regular vitamin treatments and exfoliation only provide temporary relief, and my complexion itself doesn't get clearer. Is there anyone else out there with skin that has hardened into a dull, lifeless look like mine?