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AHK Cu was gentler on my sensitive skin GHK Cu worked better but irritated me if I overused it

If your goal is anti-aging I’d lean toward GHK-Cu That’s where I noticed the biggest difference

Used GHK Cu after laser treatments and healing seemed quicker Never tried AHK-Cu in that situation

AHK Cu was decent but GHK Cu became a permanent part of my routine because the results were more noticeable

I think expectations matter Neither gave overnight changes but GHK-Cu slowly improved skin quality

GHK Cu seemed better for fine lines AHK Cu felt more like maintenance than correction

My wife uses GHK-Cu and keeps asking me to reorder it That’s probably the best review I can give

I paired GHK Cu with tretinoin on alternating nights and really liked the combination

AHK-Cu absorbed fast but I couldn’t point to major improvements GHK-Cu gave me visible skin glow