AHK-Cu
Studied in hair follicles
Tested on isolated human follicles in the laboratory.
Read the study ↗Papa & Filles · Peptide care
Your scalp
is skin.
Dual Peptide Scalp Serum
Two copper peptides. Once a day.
$79 CAD30 mL · Now available
Shop the scalp serum4–6 drops. Once a day.
Canada shipping $8 CAD · Free on orders $150+
Delivery details
Shown in its Copper Peptide Scalp Concentrate packaging.
Part
Part your hair on a dry or towel-dried scalp.
Apply
Apply 4–6 drops directly to the scalp.
Massage & leave in
Gently massage. Do not rinse. Follow the label.
Inside the formula · Ingredient research
Two peptides. A closer look.
GHK-Cu
Studied in skin cells
Tested for collagen production in laboratory cell cultures.
Read the study ↗The founder’s routine
Watch Joseph apply it.
Joseph shows how he parts his hair, applies the serum to his scalp and focuses on the crown. His own routine, in his own words.
Sound on when you press play. English captions available. Follow the label: 4–6 drops once daily. Apply directly to a dry or towel-dried scalp, massage and leave in.
Shop the scalp serum ↗Inside the serum / The ingredient explorer
Understand
every drop.
Two copper peptides. Four supporting ingredients. Choose one below, turn the molecule, and see what it does in the formula.
GHK peptide backboneC₁₄H₂₄N₆O₄
Loading molecular structure…
CarbonNitrogenOxygenHydrogen
Cu2+
Add copper. Meet GHK-Cu.
This is the peptide backbone. Binding a copper ion forms the copper–peptide complex in our serum.
Computed structure from PubChem ↗. Free peptide shown; not the copper complex’s geometry.
The copper peptide
1%GHK-Cu
in the serum
in the serum
Three amino acids. One copper ion.
Glycine, histidine and lysine form GHK. Bound to copper, it becomes GHK-Cu. Laboratory research has examined its role in collagen production in skin cells. Collagen is part of the extracellular matrix: the support structure around cells. That ingredient research is why GHK-Cu is of interest in skin science.
The amino-acid sequence
GGlycine
HHistidine
KLysine
Research & sources
Read the original laboratory studyResearch on an ingredient is not a clinical result for this finished serum.
FORMULA NOTES / 30 mL / pH 5.5–6.0
Ingredient research informs our formula; it is not a clinical trial of this serum. Featured concentrations from our carton. These are featured ingredients. Read the complete ingredient list.
Before & after / Five months
Five months.
Before & after.
Before-and-after photographs, five months apart.
Drag the divider to compare the photographs.
A customer's own photos. Individual results vary.
Customer reviews
In their
own words.
4.6 out of 5, from
17 reviews
Dual Peptide Scalp Serum
$79 CAD · 30 mL
My issue with scalp products is that they make my hair look like it needs washing immediately. This one fits into my routine without that whole situation. I’m consistent with it because it’s easy.
Still early days. Mostly pleased that I’ve actually been consistent with it. Usually I buy these things, use them three times and forget they exist.
The leave-in part sold me. I do not have the energy for anything that involves getting back in the shower.
Read every review, including the three-star ones. Individual experiences; results vary. Shipping and taxes calculated at checkout.
Before the first drop
A few
good questions.
Why is it called Dual Peptide Scalp Serum?
The formula contains two distinct copper peptides: 1% GHK-Cu and 0.5% AHK-Cu. They sit alongside niacinamide, caffeine, panthenol and sodium hyaluronate in one daily leave-on scalp serum. Explore the formula and complete ingredient list.
When can I buy it?
It is now available at $79 CAD for 30 mL. Papa & Filles packs and ships each order directly from King City, Ontario.
What can I expect from the serum?
A daily leave-on scalp-care step, built around two copper peptides and four supporting ingredients. We do not promise a hair-growth timeline. Our research library separates ingredient findings from finished-product evidence.
Where is the complete ingredient list?
Explore the six featured ingredients and their concentrations in the ingredient explorer. For every ingredient, read the complete ingredient list.
Make room for your scalp.$79 CAD · 30 mL · Now available
Packaging preview. Final presentation may change.
Next in peptide care · Pre-order open
Peptides.
In patch form.
Copper Peptide Complex
Our next chapter: peptide body patches. $79 CAD for 30.
One patch. Once a day.
Apply one patch in the morning. Leave it on for 8–12 hours, then remove it. Repeat the following morning.
30 patches · A 30-day supply.
Follow the product label and stop use if irritation occurs.
Ships from November 15, 2026.
Charged at checkout. If the date moves, we email you; full refund on request before it ships.