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Australian Made

Australian owned & operated

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In-House Chemists

Never white-labelled

🌙

Overnight Formula

8-hour repair window

4.9 / 5 Rating

Verified reviews

COPPER PEPTIDE OVERNIGHT TECHNOLOGY

GHK-Cu Never Stops Working.
Neither Should Your Skincare.

GHK-Cu is the copper tripeptide your skin recognises as a repair signal. This overnight resurfacing mask pairs 1% Copper Tripeptide-1 with Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, Alpha-Arbutin, four forms of hyaluronic acid and Ceramide NP, so the formula does more than hydrate — it supports renewal, firmness, brightness and barrier recovery while you sleep.

ADD TO BAG
0+ Genes RegulatedBroad Institute MIT/Harvard
0% Firmness Increase2023 double-blind study
0% Fine Line ReductionSame peer-reviewed study
0hrs Active repair windowOvernight mask delivery

STAR INGREDIENT SPOTLIGHTS

Six actives doing serious work. While you sleep.

The GHK-Cu mask is built around copper peptide repair, signal peptides, tone refinement, layered hydration and barrier support — each active earns its place.

01 · Signature Active

1% Pure GHK-Cu

The blue peptide everyone is talking about — at a serious 1% concentration, built for overnight renewal, bounce and visibly smoother skin by morning.

1% Copper Tripeptide-1 Pure GHK-Cu · overnight repair signal

02 · Firmness Peptide

Palmitoyl Tripeptide-1

The bounce-back peptide. Helps skin look firmer, smoother and more supported — exactly what you want in a regenerative overnight mask.

Firmness Signal peptide support

03 · Calming Peptide

Palmitoyl Tetrapeptide-7

The comfort peptide. Supports a calmer, more resilient-looking finish so renewal feels plush — not stripped.

Calm Comfort + elasticity

04 · Tone Refinement

Alpha-Arbutin

The glow-up active. Added for uneven tone, post-blemish marks and that clearer, fresher look customers actually notice.

Glow brighter look Tone more even Refine clearer finish

05 · Hydration Matrix

4 Types of Hyaluronic Acid

Four hydration textures in one formula, so skin feels juicy, cushioned and visibly plumper when you rinse in the morning.

Sodium Hyaluronate classic hydration
Hydrolyzed Sodium Hyaluronate smaller-feel HA
HA Crosspolymer surface veil
Acetylated HA long-lasting comfort

06 · Barrier Lipid

Ceramide NP

The barrier closer. Helps seal in comfort so this feels like a luxe recovery mask, not an aggressive treatment.

Barrier Seal

HOW WE COMPARE

Not All Overnight Masks Are Created Equal

See why customers choose the Helloskin GHK-Cu overnight mask

BEST VALUE
Helloskin
Generic Sleep MasksCopper Peptide Clinics
GHK-Cu Concentration
1% pure GHK-Cu
None
Clinic-only treatment
Peptide Complex
PT-1 + PT-7 included
Trace / none
N/A
Price
Under $90 AUD
$30–60 AUD
$150–400/session
Formulated In-House
Own chemists
OEM / white-label
N/A
Concentrations Declared
Full disclosure
"Proprietary blend"
N/A
Made In Australia
Yes
No (imported)
N/A

Overnight copper peptide system

1% GHK-Cu is only part of the sleep step.

The GHK-Cu mask takes the copper peptide story and makes it overnight-specific: 1% Copper Tripeptide-1, two supporting peptides, Alpha-Arbutin, four hyaluronic acid forms, Ceramide NP and squalane in a richer formula made for one to four nights per week.

The label problem

A blue mask needs more than a copper peptide headline.

Copper peptide gets the attention, but a leave-on overnight mask also needs hydration, comfort and a support system that makes people want to use it consistently.

The Helloskin difference

Copper peptide + tone support + cushion.

This mask uses 1% Copper Tripeptide-1 with Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, Alpha-Arbutin, four hyaluronic acid forms, Ceramide NP and squalane for a more complete overnight copper peptide ritual.

Helloskin GHK-Cu Overnight system

Built as a copper peptide sleep step with support peptides, hydration and comfort ingredients.

Basic blue masks No clear strategy

A product can look like a copper peptide mask and still rely mostly on colour and a surface-level story.

OVERNIGHT COPPER PEPTIDE FORMULA

Copper Peptides. Resurfacing Support. Barrier Repair.

9% Total Peptide Volume1.2% Copper Tripeptide-1 + 5% Palmitoyl Tripeptide-1 + 3% Palmitoyl Tetrapeptide-7

1% pure GHK-Cu, two signal peptides, Alpha-Arbutin, four forms of hyaluronic acid and Ceramide NP in one overnight mask.

1% GHK-Cu 1%
Copper Tripeptide-1

The signature copper peptide at the heart of the formula. Supports skin repair signalling, firmness and post-stress recovery while the overnight mask keeps it in contact with skin for hours.

Signal Collagen Support Signal
Palmitoyl Tripeptide-1

A matrikine signal peptide used to support collagen production, firmness and smoother-looking texture. It pairs with GHK-Cu without competing for the same pathway.

Signal Elasticity Support Signal
Palmitoyl Tetrapeptide-7

Helps calm visible stress and supports the look of firmer, more resilient skin. Together with PT-1, it rounds out the multi-peptide resurfacing story.

Supporting Actives

Alpha-Arbutin

A targeted tone-evening active that helps reduce the look of uneven pigmentation and post-blemish marks while the mask supports overnight renewal.

💧
4 Types of Hyaluronic Acid

Sodium Hyaluronate, Hydrolyzed Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer and Sodium Acetylated Hyaluronate hydrate across multiple layers overnight.

🧱
Ceramide NP

A skin-identical lipid that helps reinforce the barrier, reduce overnight moisture loss and keep resurfacing actives feeling comfortable.

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Squalane

Plant-derived emollient that mimics skin's natural sebum. Locks in the mask formula without congesting pores.

🛡️
Panthenol (Pro-B5)

Soothes, repairs the barrier and locks in moisture — essential when the mask is working on cellular renewal overnight.

🌿
Madecassoside + Centella

A calming recovery complex that supports visible redness, stressed skin and barrier resilience alongside the copper peptide pathway.

🍃
Beta-Glucan

A soothing polysaccharide that supports hydration, comfort and barrier recovery, especially useful in an overnight resurfacing formula.

⚗️
Niacinamide

Supports barrier strength, brightness and oil balance, complementing Alpha-Arbutin and the peptide complex for a more even-looking finish.

✗ No Parabens✗ No Sulfates✗ No Silicones✗ No Phthalates✓ Cruelty Free
View Full INCI List

Water · Propanediol · Glycerin · Butylene Glycol · Niacinamide · Panthenol · Copper Tripeptide-1 · Palmitoyl Tripeptide-1 · Palmitoyl Tetrapeptide-7 · Alpha-Arbutin · Ascorbyl Glucoside · Sodium Hyaluronate · Hydrolyzed Sodium Hyaluronate · Sodium Hyaluronate Crosspolymer · Sodium Acetylated Hyaluronate · Polyglutamic Acid · Beta-Glucan · Ceramide NP · Squalane · Tocopherol · Madecassoside · Centella Asiatica Extract · Asiaticoside · Portulaca Oleracea Extract · Adenosine · Pullulan · Sclerotium Gum · Algin · Chondrus Crispus Extract · Ethoxydiglycol · Phytic Acid · Arginine · Carbomer · Xanthan Gum · 1,2-Hexanediol · Pentylene Glycol · Hydroxyacetophenone · Tetrasodium Glutamate Diacetate · Ethylhexylglycerin

REAL RESULTS

What our customers say.

4.9 · verified reviews
3 weeks ago

“I've spent a fortune on overnight masks over the years. This is the first one that has actually made a measurable difference to my skin's firmness. By week three, the lines around my eyes had visibly softened. I won't be without it.”

Rachel D. 48 · Dry/Mature
✔ Verified Anti-Aging
Firmness Devotee
1 month ago

“I use this after microneedling and the recovery is dramatically faster. Redness gone in 24 hours instead of three days. The GHK-Cu is doing exactly what it says on the label.”

Chloe M. 34 · Combination
✔ Verified Texture & Scars
Post-Procedure Hero
2 weeks ago

“I layer this over the GHK-Cu serum three nights a week. My skin has never looked more even or felt more resilient. My dermatologist asked what I'd added to my routine.”

Tanya H. 41 · Sensitive/Mature
✔ Verified Redness
Layering Convert
1 week ago

“I wake up glowing every morning I use this. My skin looks like I've had 10 hours of sleep even when I've had six. The subtle blue tint rinses off completely — no staining.”

Emma F. 29 · Normal
✔ Verified Glow & Radiance
Morning Glow

YOUR NIGHT RITUAL

How to Use.

01
STEP 01 · CLEANSE
🧴

Cleanse

Double cleanse in the PM. Start with an oil cleanser to remove SPF and makeup, then your Helloskin cleanser. Apply the mask to clean, dry skin.

02
STEP 02 · LAYER
💧

Layer

Optional: apply your GHK-Cu serum first, allow 1 minute to absorb. Apply the mask generously over the face and neck — do not rub, press gently.

03
STEP 03 · SLEEP
🌙

Sleep

Leave on overnight — 6 to 8 hours. Rinse with lukewarm water in the morning. Follow with moisturiser and SPF 30+.

EXPECTED RESULTS

Night 1–3

Skin calmer and softer on waking. GHK-Cu's anti-inflammatory effect reduces overnight redness and sensitivity. Barrier begins to repair.

Week 1–2

Texture visibly smoother. The GHK-Cu and signal peptide complex supports renewal while the hyaluronic acid network keeps skin looking plump.

Week 3–8

Visible firmness, glow and more even-looking tone. Alpha-Arbutin and Ascorbyl Glucoside support brightness while Ceramide NP keeps the barrier resilient.

💡 Pro Tips

Use 3–4 nights per week — copper peptides need recovery time between applications

Do not use on the same night as exfoliating acids — alternate nights for best results

Pairs perfectly with the GHK-Cu serum underneath for amplified overnight copper peptide delivery

⚠️ The natural blue tint from Copper Tripeptide-1 does not stain pillows or skin when rinsed properly in the morning

Overnight ingredient notes

Copper peptide overnight care, made clear.

The mask takes the approved GHK-Cu story and makes it sleep-specific: 1% Copper Tripeptide-1, two support peptides, Alpha-Arbutin, four hyaluronic acid forms, Ceramide NP and squalane in a richer overnight format.

Why an overnight copper mask is different

The GHK-Cu serum is the daily copper peptide step. The mask is the overnight ritual: richer, more cushiony, and made for the nights you want your routine to feel a little more serious without adding ten steps.

It is tailored to sleep, not copied from the serum page. Think of it as copper peptide care with extra hydration, comfort and a soft morning finish.

The 1% Copper Tripeptide-1 callout

This mask uses 1% Copper Tripeptide-1. That is the blue copper peptide ingredient people recognise, and it is the reason the formula has such a distinctive look.

We keep the language grounded: copper peptide skincare for skin that you want to look firmer, smoother, fresher and more polished. No wild claims, no pretending a mask is a clinic service.

Two more peptides round it out

Palmitoyl Tripeptide-1 and Palmitoyl Tetrapeptide-7 support the copper peptide story for visible bounce, softness and smoother-looking texture. They make the mask feel more complete than a single-hero product.

That matters because overnight formulas need to be both active-feeling and wearable. If it feels like too much, it will sit in the drawer. This is made to be used.

Alpha-Arbutin for tone support

Alpha-Arbutin is included for tone support and a more even-looking, luminous finish. It gives the mask another reason to exist beyond “blue peptide product”, especially for people who want overnight care that helps the skin look more polished.

It is not the loudest ingredient in the room. It is the quiet detail that makes the formula feel smarter.

Four forms of hyaluronic acid

The mask includes Sodium Hyaluronate, Hydrolyzed Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer and Sodium Acetylated Hyaluronate. That gives the hydration story more dimension than a basic single-HA formula.

This is the plush part of the mask: the part that helps skin feel bouncy, cushioned and not tight when you wake up.

Ceramide NP and squalane make it wearable

Copper peptide formulas can sound intense, but the supporting base matters. Ceramide NP and squalane help the mask feel soft, comforting and more barrier-minded.

That is important for a product you leave on while you sleep. It needs to feel like a treat, not homework.

How often to use it

Use the GHK-Cu Overnight Mask one to four nights per week. That rhythm keeps it special, realistic and easier to commit to.

On non-mask nights, keep your routine simple. The point is consistency over time, not using more product than your skin needs.

How to layer it with the serum

If you have the GHK-Cu Serum, apply it first and give it a minute to settle. Then apply the mask as your final step.

If you are using strong vitamin C, retinol or exfoliating acids, keep those in a separate routine at first. The mask is already an active-feeling overnight step, so let it have the night.

GHK-Cu mask questions

Overnight copper care, explained simply.

The practical questions people ask before adding the GHK-Cu mask to one to four nights per week.

1% Copper Tripeptide-1 in a sleep-step mask.
What is the GHK-Cu Overnight Mask?

It is a leave-on overnight mask built around 1% Copper Tripeptide-1, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, Alpha-Arbutin, four hyaluronic acid forms, Ceramide NP and squalane.

How is it different from the GHK-Cu Serum?

The serum is the lighter daily peptide step. The mask is richer and more cushiony, made for one to four nights per week when you want extra overnight comfort and hydration.

How often should I use it?

Use it one to four nights per week. That cadence keeps the mask realistic and special without making people feel like they need to use it every night.

Can I use the GHK-Cu Serum underneath?

Yes. Apply the GHK-Cu Serum first, let it settle for about a minute, then apply the mask as your final step.

Why is it blue?

The blue tone comes from Copper Tripeptide-1. It is a normal visual cue of a copper peptide formula.

What does Alpha-Arbutin do here?

Alpha-Arbutin is included for tone support and a more even-looking, luminous finish. It gives the overnight formula another cosmetic role beside the copper peptide story.

What are the four hyaluronic acid forms?

The mask includes Sodium Hyaluronate, Hydrolyzed Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer and Sodium Acetylated Hyaluronate for a bouncy, hydrated-feeling finish.

Why Ceramide NP and squalane?

They help the mask feel comfortable, soft and more barrier-minded, which matters in a leave-on overnight formula.

Can I use it with retinol, vitamin C or acids?

Keep strong vitamin C, retinol and exfoliating acids in a separate routine at first. Use the mask on quieter nights so the copper peptide system has space.

Is it suitable during pregnancy?

If you are pregnant, breastfeeding, trying to conceive or under medical care, check with your healthcare professional before introducing active skincare.

CURATED ROUTINE

The Overnight Copper Ritual

Cleanse, layer, sleep. Three steps — wake up with your best skin every morning.

+
STEP 01 🫧
The clean slate Helloskin Glow Cleanser

pH-balanced, glycerin + aloe base. Double cleanse at night to maximise overnight mask absorption without residue blocking peptide delivery.

$28.00
+
STEP 03
The daytime booster GHK-Cu Peptide Serum

Layer underneath the mask at night for amplified copper peptide delivery — or use alone in your AM routine to keep skin in continuous repair.

$89.00

BUNDLE PRICE

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EIGHT HOURS. WHILE YOU SLEEP.

Ready to Wake Up to Different Skin?

1% pure GHK-Cu with signal peptides, Alpha-Arbutin, four forms of hyaluronic acid and Ceramide NP. Overnight resurfacing support without starting from scratch every morning.

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