What is GHK-Cu?
GHK-Cu stands for glycyl-L-histadyl-L-lysine-copper (try saying that five times real fast or even once lol). It is a naturally occurring peptide that binds to copper. It is found in human plasma, saliva, and urine. And as with most good things, GHK-Cu declines with age.
In our bodies, GHK-Cu is involved with cellular repair, collagen production, wound healing, and inflammation.
I know what you are thinking, tell me about the collagen part!
Yes, GHK-Cu is like Miracle-Grow for your skin.
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Supports collagen and elastin production
- The structural proteins that keep skin firm, plump, and springy
- Rescue the appearance of fine lines and wrinkles
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Boosts tissue repair
- Helps wound healing
- Helps skin cell turnover and health
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Anti-inflammatory and antioxidant
- Calming effect on the skin to protect from oxidative damage (UV, pollution)
And Hair Too!
There is evidence that it can help hair.
- Pushes the hair follicle toward the growth phase
- Reduces inflammation of the scalp
- Promotes the collagen around the follicle to help hair health, texture, and thickness.
But Isn’t Copper Toxic?
Copper by itself is toxic to your body. In the body, to prevent toxicity, it is bound by a protein called ceruloplasmin.
The peptide GHK loves copper. If there is a good amount of GHK peptide in your system, then it can whisk the copper away from the ceruloplasmin. Which then creates GHK-Cu.
It is the combination of copper and GHK that is great for skin and hair.
Should I take copper for my skin? Taking copper as a supplement is not going to have the effects on skin and hair like GHK-Cu unless there is a copper deficiency (which is not common).
It’s the GHK peptide combined with copper that is the magic for skin and hair. Now, when I say that, it is your own GHK peptide that binds to copper that is magic for hair and skin. We are still in the learning phase if the copper peptide (GHK-Cu) injected could have an impact on hair and skin. But it certainly does look promising.
It's your declining GHK peptide (with age) that can cause issues with hair and skin.
In young adults, their GHK peptides are relatively robust. Which is why we notice hair and skin changes as we age. Then combine that with declining hormones, environmental pollutants, and stress, well, I sure pay more for skin and haircare now at 52 than ever before.
- Slower wound healing
- Thinner skin
- Loss of collagen and elasticity
- Hair thinning
- Slower tissue repair
That is why, as we age, our skin can become more fragile and prone to more micro-traumas like scratches, tears, and slower-healing. And also why our hair starts to grow more slowly, the strands are finer and weaker, and increased shedding.
Topical vs Injection:
Topical GHK-CU (copper peptide) supports the skin you see (or apply it to). Whereas the injectable theoretically supports the biological signals underneath.
Topical is the most popular, having been around longer and with more studies. Again, it only helps where you put it. And will not have the systemic effects that injections can/could have.
- Acts locally on the upper layers of your skin
- Can support skin texture and appearance
- May help with fine lines and wrinkles where you apply it.
- Hair topical has limited penetration to the follicle and deeper tissues of the scalp.
Injection delivers the GHK-Cu directly to the tissues where it can influence:
- Fibroblasts: cells that make collagen and keep skin and connective tissue strong
- Endothelial cells: the cells that line your blood vessels to support circulation and nutrient delivery.
- Immune signalling: helps to regulate inflammation and healing
- Extracellular matrix: this is like a ‘scaffolding structure’ to give tissue strength and elasticity.
The injections have the potential of shifting from a cosmetic peptide to tissue repair signals.
Injectable GHK-Cu (copper peptide) is a newer clinical application, and research is still evolving. Much of what we understand about GHK-Cu injectables is theoretical and based on in vitro, animal studies, and clinical experience. The potential sounds very promising.
In the full article, I break down:
- Injectable GHK-Cu
- Who is actually a good candidate
- Safety blood testing labs to run
- Cycling protocols
- Clinical dosing examples for skin fragility, wound healing, and hair loss.