Before you enter

This is a medical program, not a store

Bioaminex does not sell products directly. Everything begins with lab work and a licensed physician. Please confirm you understand:

I'm not ready — exit

Peptide therapies may involve compounds that are prescription-only or investigational. Nothing here should be used without physician supervision and appropriate laboratory monitoring.

Home · Peptide library · GHK-Cu
Skin & tissue · Copper-binding tripeptide

GHK-Cu

A copper peptide with genuinely solid evidence — for topical skin use specifically. The injectable, systemic claims are a different, less-proven story.

GHK-Cu is a useful example of a compound where the evidence is real but narrower than the marketing suggests. Here's the difference between what's well-studied and what's extrapolated.

At a glance

Drug class
Naturally occurring copper-binding tripeptide (glycyl-L-histidyl-L-lysine)
FDA status
Topical form regulated as a cosmetic ingredient (Copper Tripeptide-1), not a drug. Injectable form is not FDA-approved; Category 2 in 2023, removed April 2026
Brand names
Sold under many cosmetic-ingredient names; no branded injectable
Discussed uses
Topical anti-aging/skin repair (strongest evidence); hair growth, wound healing, systemic anti-aging (largely preclinical for injectable use)
Route
Topical (cosmetic products); subcutaneous injection (compounded, systemic use)
Prescription
Not required for topical cosmetic products; required for injectable, compounded form

What GHK-Cu is

GHK-Cu is a naturally occurring peptide that declines with age and plays a role in skin repair and wound healing. It's widely available in over-the-counter cosmetic products (marketed as "copper peptides") and, separately, as an injectable compounded product for broader systemic claims.

How it works

In skin, GHK-Cu appears to support collagen and elastin production and modulate the wound-healing process, which is the basis for its topical anti-aging use. Systemic/injectable use is based on extending that same wound-healing and tissue-remodeling logic to the whole body — a much bigger extrapolation that hasn't been established with the same rigor.

What the evidence shows

This is a genuine "tale of two evidence bases." Topically, GHK-Cu has real controlled human trial support: pooled data across a dozen studies and nearly 900 participants shows improved skin density, thickness, and wrinkle appearance with daily use over about 12 weeks, and a good safety record with minimal irritation and no evidence of systemic copper overload from topical use. For injectable, systemic use — hair growth, wound healing beyond skin, general anti-aging — the evidence is largely preclinical (animal and lab studies), not human trials.

Side effects and who it's not for

Topically, side effects are minimal — mild redness or itching in a small percentage of users, no signal of toxicity in pooled safety data. Injectable/systemic use carries the general uncertainty of any compounded, non-FDA-reviewed injectable, and should go through the same lab-and-provider process as anything else on this page — not be assumed as safe as the topical version just because it's the "same" peptide.

The Bioaminex standard for ghk-cu

Before starting (injectable)
Baseline labs + provider review of current regulatory eligibility
Screening
Copper metabolism history (e.g., Wilson's disease), general health
Dosing
Provider-managed if pursuing injectable/systemic use; topical use is lower-risk and provider-optional
During therapy
Monitoring appropriate to route (topical vs. injectable)

The bottom line

If you're interested in GHK-Cu for skin — the topical evidence is genuinely solid. If you're interested in it for systemic, injectable anti-aging or hair-growth claims, you're relying on a much thinner, mostly preclinical evidence base, and that route should go through the same provider-supervised process as any other injectable peptide.

Want to know if it's right for you? That's not a question a website can answer — it's a clinical evaluation. Start your intake and a licensed provider will review your goals and your labs.

Start your consultation

This article is for educational purposes only and is not medical advice. It does not establish a provider-patient relationship. FDA-approval status and clinical information are summarized in general terms and may change; consult a licensed healthcare provider and current prescribing information before making any medical decision. Bioaminex does not sell or dispense GHK-Cu or any medication.