Sparky757
GLP-1 Novice 🚫No Source Discussion🚫

I'm in a bit of a rabbit hole recently about GHK-Cu and its effects on skin. Specifically, I'm trying to get my head around the correct delivery method: subcutaneous, topical, or microneedling. I found a study that says topical barely gets anything through the stratum corneum but that microneedling does pass that barrier. That study is here.Incognitodoberman said:I’m a couple months in on GHK and I’ve seen a noticeable difference in fine lines and overall complexion, however not much with my hair. After doing more reading it sounds like it helps with hair but it’s more directed for skin. AHK-cu is supposed to be more for hair growth by stimulating dermal cells.
I’m just using GHK on my face and neck and just started AHK about a week ago, for my hair.
Edit: I should have added that these are cosmetic GHK and AHK.
I also do injectable GHK. Cycling on and off.
I'm not convinced subcutaneous GHK-Cu is the answer. This is because I make comparisons with vitamin C (ascorbic acid). Study after study shows that oral ingestion of even very high amounts of vitC does not come into the ballpark for concentrations of the molecule in the skin when compared to topical application (especially formulations such as Skinceuticals' ferulic acid/tocopherol formula that just recently went off patent). In contrast with GHK-Cu, vitC does get absorbed with low enough pH.
The concentration in the skin itself is where it counts. I am skeptical that pinning GHK-Cu achieves a high enough concentration where it counts to be doing what we're hoping it's doing. We think we're solving for the "can't get past the skin barrier" problem with pinning, but pinning doesn't solve any problem other than getting large molecules past the digestive tract. Are there any studies that are on subQ GHK-Cu and skin specifically? I can't find any.


