★★★★★ 4.9/5 from 100 orders · Australian Flag Locally Made in Australia
Evidence-informed peptides · Made in Australia

The dose,
printed in full.

Most serums name a peptide on the label without telling you how much is inside. We print the exact percentage of active in every formula — a no-needle skin solution with copper peptides and hyaluronic acid, suitable for all skin types.

Woman holding the Skincare Science Australia 2% GHK-Cu Peptide Serum
The range

Three formulas. Every dose printed.

No proprietary blends, no hidden percentages. Suitable for all skin types — choose by what you're after, or by how much active you want.

Find your dose:

Shipping is charged once per order: $10 standard (3–5 business days) or $15 express (1–2 business days).

Best match
The Starter: 1% GHK-Cu Peptide Serum with hyaluronic acid, 30 ml
1% GHK-Cu · Hyaluronic Acid · 30 ml

The Starter

A gentler 1% copper-peptide serum with hyaluronic acid — an easy first step for newer or more sensitive skin.

Ingredients

Ingredients: Water (Aqua), Copper Tripeptide-1 (GHK-Cu), Hyaluronic Acid, Glycerine.

$35.00
Best match
The Standard: 2% GHK-Cu Peptide Serum with hyaluronic acid, 30 ml
2% GHK-Cu · Hyaluronic Acid · 30 ml

The Standard

2% copper peptides with hyaluronic acid, for a smooth, hydrated, radiant-looking complexion.

Ingredients

Ingredients: Water (Aqua), Copper Tripeptide-1 (GHK-Cu), Hyaluronic Acid, Glycerine.

$50.00
Best match
The Scalp Restore: 3% GHK-Cu Scalp Restore Serum with hyaluronic acid, 30 ml
3% GHK-Cu · Hyaluronic Acid · 30 ml

The Scalp Restore

Our highest dose — 3% copper peptides with hyaluronic acid, in a light dropper serum made for the scalp and hairline.

Ingredients

Ingredients: Water (Aqua), Copper Tripeptide-1 (GHK-Cu), Hyaluronic Acid, Glycerine.

$65.00
Bundles

Pair up and save 5%

The same serums, bundled together for less.

Save 5%
The Face & Scalp Duo: one 2% GHK-Cu Peptide Serum and one 3% GHK-Cu Scalp Restore Serum
2% GHK-Cu + 3% GHK-Cu · 2 × 30 ml

The Face & Scalp Duo

One bottle of The Standard (2%) for your face and one of The Scalp Restore (3%) for your scalp and hairline, together for 5% less.

$109.25$115.00Save $5.75
Save 5%
The Standard Trio: three bottles of 2% GHK-Cu Peptide Serum
3 × 2% GHK-Cu · Hyaluronic Acid · 30 ml

The Standard Trio

Three bottles of The Standard, our 2% copper-peptide serum. Stock up for the months ahead and save 5%.

$142.50$150.00Save $7.50
How to use

30 Seconds Morning & Night

1
Cleanse Skin

Wash face with a gentle cleanser and pat dry.

2
Apply One Full Dropper

Press one full dropper of serum into face and neck until absorbed.

3
Seal & Protect

Seal with your standard moisturiser and daytime sunscreen.

For Scalp & Hairline

Using The Scalp Restore? Part the hair and apply one full dropper directly to the scalp, morning and night. Massage in gently — no need to rinse.

Suitable for all skin types. New to peptides or sensitive? Patch test on the inner arm first and introduce gradually.

Applying 2% GHK-Cu Peptide Serum to the cheek, with the bottle on the bathroom bench
The science library

Two actives. Different levels of proof.

We separate human topical results from laboratory evidence, then show exactly how each finding informed our formulas. No ingredient gets promoted beyond the study that supports it.

Human topical + laboratory moderate evidence

A signal peptide with copper at its centre.

GHK-Cu is a naturally occurring tripeptide bound to copper. Laboratory studies connect it with extracellular-matrix signalling; small human topical studies report visible improvements in firmness, density and wrinkle appearance.

Signal

In fibroblast and skin models, GHK-Cu influences pathways associated with collagen, elastin and matrix turnover.

Topical result

Controlled cosmetic studies are encouraging, but smaller and older than the evidence base for established actives such as retinoids.

Our use

Face serums at 1% and 2%, plus a higher 3% leave-on scalp formula for concentrated copper-peptide care.

The clinical proof, in context

The result matters. So does the denominator.

Human appearance outcomes and experimental collagen measurements answer different questions. Here they stay separate, with the study size and timeframe attached.

67women in the facial study

Participants aged 50-59 had mild to advanced photodamage and used GHK-Cu cream against placebo.

12weeks, twice daily

Investigators reported improvements in visible laxity, clarity, firmness, density, thickness and wrinkle appearance.

7/10showed a procollagen response

In a separate one-month thigh-skin comparison. This was an experimental tissue endpoint, not a facial wrinkle result.

These studies support GHK-Cu as a cosmetic ingredient. They do not prove that 1%, 2% or 3% is superior, and they were not trials of Skincare Science Australia finished products.

Measured outcomes

The numbers behind copper peptides.

55.8%

Less visible wrinkle volume

In an 8-week study, GHK-Cu reduced measured wrinkle volume by 55.8% versus a control serum — visibly smoother-looking skin, backed by science.

25.4×

More Collagen IV

In fibroblast (skin-cell) testing, GHK-Cu paired with low-molecular-weight hyaluronic acid raised Collagen IV by 25.4× — deep hydration meeting real structural support.

25%

Built more collagen

In head-to-head testing, GHK-Cu raised collagen more reliably than vitamin C or retinoic acid. Copper is the very cofactor skin uses to cross-link and strengthen new collagen — firmer, denser structure, not just surface glow.

+28%

Denser collagen in 12 weeks

Ultrasound measured a 28% average rise in collagen density over three months — climbing to +51% in the strongest responders. Real, measurable firmness deep in the skin, not just a smoother surface.

Figures are drawn from published GHK-Cu ingredient and laboratory studies at the concentrations and vehicles described in those papers. They support copper peptides as a cosmetic active; they are not trials of Skincare Science Australia finished products, and individual results vary.

Important contextPublished figures relate to the specific ingredients, molecular weights, vehicles and study products described in the linked papers. They are not trials of Skincare Science Australia finished products and are not promises of individual results. Cosmetic benefits describe visible appearance and skin feel.
The science

GHK-Cu, drawn honestly.

GHK is a tripeptide — three amino acids, glycine, histidine and lysine, joined by peptide bonds. In GHK-Cu, a copper ion sits coordinated to three of its nitrogen atoms: the N-terminal amine, the amide nitrogen, and the imidazole ring of histidine. It's the same molecule drifting across this page.

A well-known copper peptide in modern skincare, chosen for the way it leaves skin looking and feeling. The Cu is copper — that's where the name, and the blue of the bottle, come from. We simply tell you exactly how much we use.

Nitrogen — the three copper-coordinating sites
Oxygen, and the copper ion (Cu²⁺)
Carbon backbone & peptide bonds
The range · 1% & 2% GHK-Cu
Get in touch

Questions? We're here.

Ingredient questions, order help, or wholesale enquiries — reach us directly, and a real person (often the one who made your serum) will reply.