GHK-CU + AHK-CU

• Hair and follicle support
• Healthier, fuller-looking hair
• Skin quality and appearance
• Collagen and skin-remodelling support
• Skin elasticity and firmness
• Tissue repair and regeneration pathways
• Two complementary copper peptides in one formula

• Shedding
• Density at the hairline
• Skin quality
• A monthly photo in the same light

GHK-Cu is a copper peptide: the tripeptide glycyl-histidyl-lysine, three amino acids bound to a copper ion. It occurs naturally in human plasma, where it was first identified. It is widely researched, with published work around skin remodelling, collagen-related processes and tissue regeneration.

AHK-Cu is its close relative: alanyl-histidyl-lysine, also three amino acids, also carrying copper, with alanine in place of the opening glycine. It has been studied mainly in the context of hair, in laboratory work on human hair follicles and on the dermal papilla cells that sit at the base of each follicle and help set the hair cycle.

This pen holds both. They are research compounds, and this page describes what they are and what they have been studied around, nothing more.

One pen, 100mg in total, split equally: GHK-Cu 50mg and AHK-Cu 50mg. That is half the GHK-Cu of the single-peptide GHK-CU pen in the same range, with AHK-Cu making up the other half, so the choice between the two is whether AHK-Cu is wanted in the cartridge alongside GHK-Cu, or GHK-Cu on its own. The format is the same as every pen on this site: a 3ml cartridge with 12 needles. The product is listed in the anti-ageing part of the range. Both compounds are in the one cartridge; they are not supplied separately. We do not publish dosing for any product.

Every product in the range is tested by Janoshik Analytical, an independent laboratory, and the reports are published rather than described. The ones held for this product are linked above, each named by the compound it covers, and every link goes to verify.janoshik.com, the laboratory's own domain, not to a file hosted on this site. That distinction is the whole point: a report on the laboratory's own server is a record a seller cannot edit, while a certificate hosted on a shop's own website is a picture of one. A report is evidence of identity and purity for the sample submitted, and nothing else. If you want to know what has been tested most recently before you order, ask on WhatsApp and you will get a straight answer.

What is the difference between GHK-Cu and AHK-Cu?

Both are copper tripeptides, three amino acids carrying a copper ion, and they differ by one amino acid: GHK-Cu begins with glycine, AHK-Cu with alanine. GHK-Cu is widely researched, mostly around skin remodelling, collagen-related processes and tissue regeneration. AHK-Cu has been studied mainly in the context of hair follicles and dermal papilla cells. This pen holds 50mg of each.

Can I collect GHK-Cu + AHK-Cu in Marbella, or is it sent from the UK?

The stock on this page is held in Marbella. Order on WhatsApp and collection in person or delivery along the coast is arranged in the same conversation, usually the same day when it is in stock. If it shows as sold out in Marbella, ask anyway: the same product is generally available from the United Kingdom on the same number, and ships from there instead.

Is there a GHK-Cu pen without AHK-Cu?

Yes. The range has a GHK-CU pen with 100mg of GHK-Cu alone. This blend halves that and adds 50mg of AHK-Cu. The difference is which compounds are in the cartridge, not the overall strength: both are 100mg pens.