- ✓ Cruelty free
- ✓ No sulfates
- ✓ No silicones
- ✓ No parabens
Copper peptide serum · decades of skin research
GHK-Cu Advanced 1% Copper Peptide Serum
A 1% copper peptide serum for visibly firmer, smoother, more even-looking skin. GHK-Cu is a copper peptide with decades of skin research behind it.
Key benefits
- Visibly firmer, more elastic skin
- Visible fine-line softening
- Supports a stronger skin barrier
- Visibly brighter, more even tone
Best for
- Firmness
- Fine lines & wrinkles
- Collagen production
- Smoother texture
- Barrier support
- Photoaged / mature skin
70%
Increased collagen production
of volunteers saw increased collagen production vs. vitamin C & retinoic acid comparators
55.8%
Visible wrinkle reduction
reduction in wrinkle volume vs. control after 8 weeks
85%
Eye-area wrinkle improvement
reduction in eye-area wrinkles vs. placebo & vitamin K
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- Fragrance free
INTU HAS BEEN FEATURED
BACKED BY PUBLISHED RESEARCH
GHK-Cu isn't hype. It's a copper peptide backed by decades of published research.
Topical GHK-Cu has been evaluated in controlled human trials for over two decades. Here's what the published research shows, not just brand claims.
01
70%
INCREASED COLLAGEN PRODUCTION
of volunteers saw increased collagen production with topical GHK-Cu, outperforming both vitamin C and retinoic acid comparators in the same trial.
02
55.8%
VISIBLE WRINKLE REDUCTION
reduction in wrinkle volume vs. control after 8 weeks of topical GHK-Cu, plus a 32.8% reduction in wrinkle depth.
03
85%
EYE-AREA WRINKLE IMPROVEMENT
reduction in periorbital wrinkles, with 70% of participants reporting improved firmness and clarity, outperforming placebo and a vitamin K comparator.
Results reflect published research on topical GHK-Cu as an ingredient, observed over 8–12 weeks of consistent use. Individual results from this finished formula may vary. Full citations below.
THE PEPTIDE SYSTEM
Three peptides. One advanced formula.
01 · COPPER PEPTIDE CORE
1%
Copper Tripeptide-1 (GHK-Cu)
The hero active and the most extensively studied peptide in the formula. Associated with fibroblast activity and extracellular matrix production, the basis of its collagen, elastin and firmness support, plus antioxidant and barrier-hydration benefits.
02 · SMOOTHING SIGNAL PEPTIDE
+
Palmitoyl Pentapeptide-4
A well-studied signal peptide that supports the skin's own structural protein production, contributing a broader smoothing and bounce effect alongside the copper peptide core.
03 · COMFORT SIGNAL PEPTIDE
+
Palmitoyl Tetrapeptide-7
A complementary peptide associated with calming visible redness and irritation responses, rounding out the system for a more even-looking, well-conditioned finish.
NOT ALL GHK-CU SERUMS ARE BUILT THE SAME
Us vs. the typical copper peptide serum
| What matters | INTU SKIN | Typical GHK-Cu serum |
|---|---|---|
| Declared GHK-Cu concentration | 1%, clearly stated on pack | Often undisclosed “proprietary blend” |
| Supporting peptide system | Palmitoyl Pentapeptide-4 + Palmitoyl Tetrapeptide-7 | Usually GHK-Cu alone, no signal peptides |
| Botanical soothing complex | Centella asiatica extract | Rarely included, or a single fragrance-grade extract |
| Hydration system | Trehalose, triple hyaluronic acid complex, tremella fuciformis extract | Single basic humectant (usually glycerin only) |
| Barrier comfort actives | Panthenol, allantoin, beta-glucan, serine | Often absent |
| Brightening support | Niacinamide | Rarely included |
| Backed by cited research | Yes, published studies referenced on this page | Rarely cited beyond marketing claims |
| Price vs. injectables | A fraction of the cost of injectable peptide treatments | Comparable topical pricing, fewer actives |
“Typical GHK-Cu serum” reflects common formulation patterns observed across the category, not any single named competitor product.
REAL RESULTS
Before. After. This is what the ritual does.
Customer photos taken weeks apart on the Confidence System, submitted with permission. Individual results vary.
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BEFORE / AFTER
Week 4 · GHK-Cu + Wellness ritual
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BEFORE / AFTER
Week 6 · GHK-Cu + Wellness ritual
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BEFORE / AFTER
Week 8 · GHK-Cu + Wellness ritual
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BEFORE / AFTER
Week 4 · GHK-Cu + Wellness ritual
WHY CONCENTRATION MATTERS
1% GHK-Cu: strong enough to work, gentle enough for daily use
THIS FORMULA
Hydration comes first. Trehalose, a triple hyaluronic acid complex and tremella extract help draw in moisture and leave the surface feeling smooth and comfortable, so your skin is ready for the actives.
Calm and even. Centella asiatica, niacinamide and Palmitoyl Tetrapeptide-7 help calm visible redness and support a brighter, more even-looking tone.
Firmness over time. 1% GHK-Cu works alongside Palmitoyl Pentapeptide-4 to support your skin's own collagen and elastin, for visibly firmer skin over 8 to 12 weeks of consistent use.
COPPER PEPTIDE, EXPLAINED SIMPLY
Frequently asked questions
THE APPLICATION
Two to three drops. Pressed, not rubbed.
The serum glides on with a light, watery texture that sinks in fast — no stickiness, no pilling. Use it on clean skin, morning and evening, before moisturiser. The blue tint is simply the copper peptide doing its job.
- Lightweight, fast-absorbing texture
- Layers under moisturiser and SPF
- Fragrance-free for sensitive skin
- Stable enough for daily, consistent use
YOUR COPPER PEPTIDE RITUAL
Simple to use. Built for consistency.
STEP 01
Cleanse first
Start with clean, dry or slightly damp skin. Apply toner or essence first if used.
STEP 02
Use 2–3 drops
Press and smooth across face and neck. Avoid direct contact with eyes.
STEP 03
Let it settle
Allow a minute to absorb before layering moisturiser.
STEP 04
Seal & protect
Finish with moisturiser, and SPF if used in the morning.
Note: GHK-Cu is unstable in the presence of pure vitamin C and can be deactivated by it. Use at separate times of day (vitamin C AM, GHK-Cu PM). Most clinical benefits were observed over 8–12 weeks of consistent use.
Award-winning formulas
Recognised by the experts.
Our products are backed by independent judging panels and trusted industry awards.
FOR THE INGREDIENT NERDS
Cited research
- Pickart et al., 2015 “GHK Peptide as a Natural Modulator of Multiple Cellular Pathways in Skin Regeneration,” BioMed Research International. Source for the 70% collagen-production data point. View study
- Abdulghani et al., 1998 “Effects of topical creams containing vitamin C, a copper-binding peptide cream and melatonin compared with tretinoin on the ultrastructure of normal skin,” Disease Management and Clinical Outcomes. Source for the periorbital wrinkle-reduction data.
- Badenhorst et al., 2016 “Effects of GHK-Cu on MMP and TIMP Expression, Collagen and Elastin Production, and Facial Wrinkle Parameters.” Randomised, double-blind clinical trial (n=40, ages 40–65) of topical GHK-Cu in a nano-carrier serum over 8 weeks. Reported a 55.8% reduction in wrinkle volume vs. vehicle control (p<0.001) and 32.8% reduction in wrinkle depth (p=0.012). Source for the 55.8% wrinkle-volume-reduction data point. View study
- Leyden, 2002 “Clinical Evaluation of a Copper Tripeptide Cream and Serum for Photodamaged Skin,” Journal of Cosmetic Dermatology, 1(3):197–204.
Important: these figures describe published research on the GHK-Cu ingredient and related comparator creams in separate clinical trials, not clinical results generated by testing this finished formula.