GHK-CU 50 mg - British Dragon

Buy GHK-Cu 50 mg vials by British Dragon at XSteroids. GHK-Cu is the copper peptide research uses for collagen, skin and connective tissue work, supplied by British Dragon as a lyophilized 50 mg vial that is dissolved before use. This page covers what it is, how one 50 mg vial calculates at three dilutions, why the solution turns blue and how to store it.

GHK-Cu is not an approved medicine anywhere; sold here it is a research product and the notes below are educational.

What GHK-Cu Is

GHK-Cu is a copper complex of the tripeptide glycyl-L-histidyl-L-lysine, bound one to one with copper(II). The tripeptide has a high affinity for copper and that binding is what makes it active, so the complex is what research works with rather than the bare peptide. At 400.90 g/mol it is one of the smallest peptide products in this catalogue, and in the body it circulates at roughly 200 ng/ml at age 20, dropping to about 80 ng/ml by 60.

Research describes it as a matrikine: a fragment released when tissue is damaged that signals repair. The reported effects are collagen and glycosaminoglycan synthesis in skin fibroblasts, antioxidant and anti-inflammatory activity, and support for new blood vessel growth. That is also why it appears in cosmetics as a restorative ingredient.

One Vial, Three Dilutions

The brand instruction for a 50 mg vial is 2 to 5 ml of bacteriostatic water, which gives roughly 10 to 25 mg per ml. That one range covers three practical set-ups.

• 50 mg + 2 ml = 25 mg per ml, so 0.1 ml is 2.5 mg
• 50 mg + 3 ml = about 16.7 mg per ml, so 0.1 ml is about 1.67 mg
• 50 mg + 5 ml = 10 mg per ml, so 0.1 ml is 1 mg
• On a U-100 syringe 0.1 ml is 10 units at every one of those dilutions

At the research reference of 1 to 2 mg a day, one 50 mg vial covers 25 to 50 days. Topical work is different: it uses a 0.5 to 2 percent solution, and then the vial lasts however long the carrier lasts, so there is no clean conversion from milligrams to percent without knowing the carrier volume.

Injection or Topical

This is where honesty is needed. The human data on GHK-Cu comes from skin application, not from injections. A 2018 review describes 12 weeks of topical GHK-Cu on thigh skin improving collagen production in 70 percent of the women studied, and a 2015 review reports faster wound healing and better skin graft take. No human study compares the injected and topical routes, and injecting copper peptides is ahead of the evidence - that is the fair reading, not a reason to claim the opposite.

Why the Solution Turns Blue

Once reconstituted, GHK-Cu has a clear blue tint. The colour is the copper in the complex and it is normal. A solution that is cloudy, or that has visible particles, is a different matter and should be discarded.

Storage and Reconstitution

Before mixing, keep the lyophilized powder dry and cool, away from light and moisture, at 15 to 25 C or in the fridge at 2 to 8 C. Do not freeze the powder. After reconstitution, store at 2 to 8 C and use within 30 days, avoid repeated freeze-thaw cycles, and do not use a cloudy solution. These are the brand's own storage rules for this vial.

Side Effects and What Is Known

There is no separate human side effect profile for injectable GHK-Cu, and long-term safety data for that route does not exist. The documented caution is a balance problem: the peptide stimulates both metalloproteinases, which break down dermal proteins, and their inhibitors, which is why the reference source says to use it with care. In sport there is no data on an official ban - GHK-Cu simply does not appear in the 2026 WADA list, which is not the same as a clearance.

GHK-Cu in a Repair Stack

GHK-Cu is usually discussed alongside the other repair peptides. BPC 157 and TB 500 cover tendon, gut and systemic soft tissue work, while GHK-Cu is the skin and connective tissue option. Where growth hormone release is the subject instead, the line has Ipamorelin and Sermorelin.

Why Buy GHK-Cu from XSteroids?

British Dragon GHK-Cu 50 mg comes straight from the brand catalogue with secure checkout, US domestic delivery in 3 to 6 days and international delivery in 12 to 26 days. The rest of the range sits on the British Dragon page.