Tissue Repair · Skin
GHK-Cu Copper Peptide
GHK-Cu is the peptide behind collagen, elasticity, and skin quality. Our serum: 0.5% concentration, once a day, delivered monthly to your door.
4.7·128 reviewsMonthly supply
Copper peptide for skin, hair, and repair — shipped monthly.
Billed each period. Cancel anytime from your account. Secure checkout by Stripe.
- Form
- 0.5% topical serum
- Cycle
- Daily, ongoing
- Frequency
- Once a day, topical
- Included
- Reserved for you — ships when the batch is ready
Why patients choose it
Why patients choose GHK-Cu
Targets what age depletes
Natural GHK-Cu levels drop roughly 60% between ages 20 and 60. In research it's associated with collagen and elastin — the structural proteins behind firm, elastic-looking skin.
Studied at the gene level
Rather than acting through growth-hormone pathways, GHK-Cu has been studied for its effects on genes tied to collagen production and antioxidant activity in skin.
A naturally occurring molecule
Your body already produces and processes GHK-Cu, and topical use has a well-tolerated profile compared with many synthetic skincare ingredients.
Overview
What GHK-Cu is
GHK-Cu (glycyl-L-histidyl-L-lysine copper) is a tripeptide-copper complex that occurs naturally in the human body. Blood plasma levels of GHK-Cu are roughly 200 ng/mL at age 20 and drop to approximately 80 ng/mL by age 60 — a 60% decline that correlates with the reduced regenerative capacity seen in aging.
Research has linked GHK-Cu to the regulation of thousands of human genes, with particularly studied effects on genes governing collagen production and antioxidant activity in skin. Much of the mechanism research is from laboratory and animal studies; human data is strongest for topical skin applications, which is how our serum is used.
Formulation
Multi-Functional Peptide Biotechnology
Our formulation is designed around complementary peptide and mineral interactions that create a unified renewal cascade:
- GHK-Copper Peptide (Pure) supports the appearance of healthier, smoother and more resilient skin.
- Centella Asiatica-Derived Secretome Peptide Complex stimulates fibroblast communication and anchoring protein production.
- Acetyl Hexapeptide-8 smooths expression lines and relaxes microtensions in facial muscles.
- Zinc Hydrolyzed Hyaluronate offers deep hydration and balances the skin microbiome to support the skin barrier.
Candidacy
Who it's for
Our GHK-Cu serum is for adults who want a higher-concentration copper-peptide step in their daily skincare. People who reach for it usually fall into one of these groups:
- Adults wanting a copper-peptide serum beyond over-the-counter skincare
- Those focused on the look of firmness, texture, and fine lines
- People who want to support the appearance of thicker, healthier-looking hair
- Anyone building a consistent anti-aging skincare routine
- Those targeting the appearance of uneven tone, sun-exposed skin, or marks
How to use
Using the serum
Our GHK-Cu is a topical serum for daily skincare:
- 0.5% topical serum: Apply a thin layer directly to clean skin on the face, scalp, or target area once a day. A high-concentration formulation made for skin rejuvenation and hair applications.
- Pair with your routine: Use alongside your existing moisturizer and SPF. Consistency over weeks is what drives visible results.
What to expect
How it unfolds, week by week
01
Weeks 4–8
Skin: many people notice smoother-looking texture and softened fine lines. Hair: scalp users often see less shedding in this window.
02
Weeks 12+
Skin: more visible improvement in firmness and the look of even tone with consistent daily use.
03
Weeks 12–24
Hair: the appearance of fuller, healthier-looking hair continues to develop with ongoing use.
Tested every batch
What’s in the serum, verified
Every lot is third-party tested before it ships. We publish the results so you never have to take potency or purity on faith.
98.6% label claim — passed
No growth — passed
Within spec — passed
Below limit — passed
Sourcing
Where it comes from
Compounded by licensed US pharmacies
Every batch is prepared by state-licensed compounding pharmacies under USP standards — not imported research-grade powder of unknown origin.
Pharmaceutical-grade ingredients
We start from pharmaceutical-grade GHK-Cu and verify each lot before it ships, so the molecule in your bottle matches the molecule on the label.
Safety
Side effects & contraindications
GHK-Cu has an excellent safety profile. It is a naturally occurring peptide that the body already produces, so the risk profile is substantially lower than many synthetic anti-aging compounds. The most commonly reported effects:
- Mild skin redness with topical application that resolves within days as skin adapts
- Mild skin sensitivity in some individuals
Patch-test on a small area before first use. For external topical use only. If you are pregnant, nursing, or have a specific medical concern, check with your healthcare provider before use.
Testimonials
In members' words
The transparency on sourcing and testing is what sold me. I know exactly what's in the vial.
Simplest subscription I've used — and the only peptide I've found with published batch results.
My dermatologist was comfortable with it once she saw the certificate of analysis.
Reviews
What members say
Based on 128 verified reviews
- ✓ Verified buyer
Skin texture noticeably smoother
I'm two months in and the texture on my cheeks and around my eyes is visibly smoother. Easy to layer under moisturizer in the morning.
Dana R.·Jun 2026
- ✓ Verified buyer
Subscription is effortless
Shows up every month without me thinking about it, and pausing was one click when I traveled. The serum itself feels light, not sticky.
Marcus T.·May 2026
- ✓ Verified buyer
Good results, slow start
Didn't see much for the first few weeks but by week six the redness from an old scar had calmed down a lot. Sticking with it.
Priya S.·May 2026
- ✓ Verified buyer
Finally a transparent peptide source
The batch testing panel is why I bought. Knowing potency and sterility were verified made this an easy switch from a sketchy overseas vendor.
Jon M.·Apr 2026
The people behind it
Reviewed by licensed clinicians
Sohaib Imtiaz, MD
Medical Reviewer
Reviews formulation standards and patient-facing safety guidance.
Amil Patel, PharmD
Pharmacy Lead
Oversees compounding partners and batch verification.
30-day satisfaction guarantee
Not happy with your first month? Cancel anytime and reach out — we'll make it right. No long-term commitment, ever.
Pricing
What it costs
Reserve your GHK-Cu 0.5% topical serum for $99 today. We'll email you the moment your pre-order ships — and you can cancel your reservation anytime before it does. See our full cost guide.
FAQ
GHK-Cu questions
Cosmetic use
Our GHK-Cu serum is a topical cosmetic intended to improve the appearance of skin and hair, for external use only. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult your healthcare provider before use if you are pregnant, nursing, or have a medical concern.
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Learn more →Pre-order your GHK-Cu
0.5% topical copper-peptide serum. Reserve yours now — we'll email you the moment it ships.
Pre-OrderGHK-Cu
Shipped monthly