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The box
GHK-Cu
Injector pen100 mg
From $14 per week as a VIP member
What users report
More collagen
after one month (trial)Firmer, denser skin
Hair, at the root
What age takes away
Firmer, denser skin, sought with a copper peptide your blood already contains, but less and less with age.
More collagen
As a cream, it raised collagen production in 7 people out of 10, against 5 out of 10 with vitamin C and 4 out of 10 with retinoic acid (Abdulghani, 1998).
Increased collagen measured after one month, as a cream (Abdulghani, 1998).
Firmer, denser skin
As a cream, three controlled trials in 41 to 71 women measured firmer, denser skin and softened wrinkles.
Hair, at the root
In the lab, it enlarged the follicle and extended its growth phase.
What age takes away
Its blood level falls by about 60% between ages 20 and 60.
Laboratory research
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People choose it for skin and hair: as a cream, it raised collagen in 7 people out of 10.
What it is: A copper tripeptide naturally present in the blood, discovered in 1973, that shifts the expression of at least 4,000 genes toward repair, including those for collagen.
Laboratory research
GHK-Cu shifts the expression of up to 4,000 genes toward repair (Pickart, 2018).
This tripeptide (glycine, histidine, lysine), discovered in 1973, circulates in the blood: its level goes from 200 ng/mL at age 20 to 80 ng/mL at 60.
Why people choose it:
- Collagen: as a cream, it raised collagen in 7 people out of 10, against 5 out of 10 with vitamin C and 4 out of 10 with retinoic acid.
- Firmness and density: as a cream, three controlled trials improved wrinkles, laxity and skin density.
- Hydration: it raises hyaluronic acid, which holds water in the skin.
- Hair: it enlarges the follicle and lengthens its growth phase.
It is the only peptide in our catalogue that carries copper, the cofactor of lysyl oxidase, the enzyme that cross-links collagen fibres.
Level of evidence, possible effects and contraindications: see the full GHK-Cu profile.
30-day trial, no card: the member price from today, no commitment. Start my free trial
$149.00 without a subscription
+ $20.00 shipping, free from 2 items
Format
This size covers between 7 and 9 weeks depending on the dose · 44% of a full cycle · $14 per week as a VIP member, at the minimum dose.
1 to 2 business days in Quebec and Ontario
In stock
Add 1 item and shipping is free (from 2 items).
Recommended supplies
- Embouts d'aiguille, paquet de 50A fresh needle tip for every injection$16.00
- Tampons d'alcool, boîte de 25To disinfect before injecting$6.00
- Combo embouts et tamponsNeedle tips and swabs together$20.00
What to combine it with?
Pick one to three products: the text follows your combination.
Supply and rebuild
What each one brings
- BPC-157 : It stimulates blood vessel formation and fibroblast migration: it supplies.
- GHK-Cu : It shifts at least 4,000 genes toward repair, including those for collagen: it rebuilds.
Why together
GHK-Cu builds collagen, BPC-157 brings the blood supply: two steps of the same repair. It is the logic of Glow Blend, which adds TB-500 to this pairing.
What adds up
- For skin and connective tissue: blood supply and collagen together.
- Collagen supported by GHK-Cu, and a first improvement as early as week 1 or 2 according to BPC-157 users.
In practice
Two pens, each on the protocol shown on its own page.
When will I feel the effects?
Weeks 1 to 2
Getting started
Your routine settles in. Noticing nothing at the start is perfectly normal.
Weeks 3 to 5
Skin takes its time
Skin changes slowly: judge it over several weeks, not a few days.
Weeks 6 to 8
The difference shows
The product starts to work well: the difference is visible after 6 to 8 weeks, according to users.
Week 9 and up
The rest of the cycle
The cycle continues up to 4 months extended (16 weeks), then a 4-week break follows.
These timings vary from one person to the next. This timeline is a guide, not a promise.
More info
Is it for me?
People choose it for skin and hair: as a cream, it raised collagen in 7 people out of 10.
Not for you if:
- Wilson's disease or any disorder of copper metabolism.
- Pregnancy or breastfeeding.
- Active cancer (due to its stimulation of tissue growth and remodelling).
- Minors.
Cycle length
A cycle lasts between 8 and 16 weeks, then a 4-week break before starting again.
The number of pens for a full cycle, the dose ramp-up and the injection days are in your protocol, sent with your order.
Price per week
- 100 mg$14 per week as a VIP member · $17 without a subscription
At the protocol's minimum dose. Quantity discounts lower this figure further.
How to use
The box
- Ready in one step: the included water syringe is already measured for this pen.
- In the box: the pen, its pre-measured water syringe, 12 needle tips (a new one for each injection) and the alcohol swabs.
- The Peptiva system: powder sealed without air or light, intact down to the last dose. Sealed until you: the box is shrink-wrapped at Peptiva, you are the first person to open it. Pen or vial: the difference
- Shipped from Quebec by Xpresspost, 1 to 2 business days in Quebec and Ontario*, with tracking. Replacement if your package is lost.
- Analyzed by Sidechain, independent laboratory · see the certificate.
- Pen with a defective mechanism: our team assesses it, and replaces it at no charge if the defect is confirmed. See the details.
Shipping
- More items, more value: shipping ($20.00) is on us from 2 items (anywhere in Canada), then 3 items −5%, 4 to 5 items −8%, 6 items or more −10% off your cart, except NAD+, glutathione and the full ramp-up, which already carry their quantity price. Stacks with your member discount. A complete stack counts as 1 more item.
- Read the full educational profile : description and how to use it, in the Centre.
Storage
Good for 9 weeks after reconstitution, if it has been kept properly: in the fridge, away from light, with an alcohol swab on the tip before each use. Past that, we do not recommend using it, even if some is left; if the liquid turns cloudy or changes colour, do not use it, even before. The solution is blue-violet: if it fades, the copper has come off and the pen should not be used.
VIP membership
$29.80 off this item (20% off all year), plus shipping at $10 instead of $20: the membership pays for itself by your 3rd order.
See all 3 benefits
- Member: this protocol becomes a dose schedule in your account, with its days, its reminder time and the tracking of your effects.
- Your training and meal plans: built from your answers, with every exercise shown on video, every meal with its calories and macros, and your grocery list.
- Victor, your VIP butler: he adjusts your dose, your days and your plans; you confirm with one click.
Membership$119· 12 months· free from $649
Chemical identityCAS No. 49557-75-7
- Form
- Copper(II) complex of the GHK tripeptide (1:1)
- CAS No.
- 49557-75-7
Salt form: as stated on the lot's certificate of analysis.
Also available as a complete protocol
This peptide is part of:
Certificate of analysis
The Peptiva system
From the box to the first injection, in three steps.
1. Receive
The pen and its water syringe arrive in the same box.
2. Empty the syringe
One gesture, once: the water goes into the pen, the plunger moves back.
3. Set the dial
For each injection, a new needle tip and the dose on the dial, with nothing to measure.
The protocol comes with the product
Dosage, cycle length, storage and injection technique, written for this product. Get it right now, even before you order.
Where to find it: The QR code on your box label · In My account, as soon as the order is paid · In the payment confirmation email
Get the protocol by email
A Peptiva account is required: the full protocol is sent to that account's email as soon as it exists.
Frequently asked questions about this product
What if my package never arrives?+
What is a peptide and how does it work in the body?+
How does the personalized Peptiva plan work?+
Are the injections done into fat or muscle?+
* Xpresspost transit time for most areas of Quebec and Ontario, counted from shipping and not from the order. Allow 2 to 4 business days elsewhere in Canada. Shipping details.

