Repairing Steroid-Induced Skin Thinning at 26: Topical vs. Oral GHK-Cu?

I’m 26 and dealing with significant skin thinning and mid-face volume loss after years of using topical steroid creams for eczema. My epidermis feels incredibly weak and thin. I’m looking into GHK-Cu to help thicken the dermis and rebuild collagen. I'm looking for facial fullness specifically in the mid-face/cheek area to reverse the hollow look.

I’m considering the NIOD CAIS 3 (Topical) for direct signalling or the Quicksilver Liposomal Copper GHK (Oral) for a systemic approach. Could both be used at the same time?