• Advanced care for healthy-looking skin: hydrates, improves firmness, rejuvenates
  • Paraben-free, dermatologically tested, fragrance-free, cruelty-free copper peptide serum
  • Silky blue copper peptide serum texture swatch on fingertip
  • Core dual-effect ingredients: Copper Tripeptide-1 GHK-Cu and Sodium Hyaluronate
  • How copper tripeptide-1 GHK-Cu works across the skin cell layers
  • Copper peptide and hyaluronic acid dual-effect combination
  • Silky, dewy, non-sticky serum texture from the dropper
  • Lightweight serum absorbs quickly without clogging pores
  • Macro close-up of copper peptide serum dropper and blue drop

GHK-Cu Copper Peptide Serum with GHK-Cu + Hyaluronic Acid

$49.99
$49.99 $99.99
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Advanced Copper Peptide Skincare

GHK-Cu Copper Peptide Serum

1% GHK-Cu + Hyaluronic Acid · 60ml / 2.02oz

  • ✔Replaces a peptide your skin makes less of every year
  • ✔Firmer, smoother-looking skin over 8–12 weeks
  • ✔Hydration you feel from the first morning
  • ✔Gentle daily use — and no sun sensitivity, unlike retinol

Choose Your Supply

✓Ships free on orders $50+ · 30-day refund, even if opened
Add the next step in your routine
GHK-Cu Copper Glow Peptide Face Cream

GHK-Cu Copper Glow Peptide Face Cream

Locks your serum in overnight. Same GHK-Cu peptide, richer form.

+ $39.99$79.98Save $39.99
Free shipping on orders $50+Order today — arrives in 3–7 business days. Tracked the whole way.
30-day money-back guaranteeDon’t love it? Full refund — even if the bottle is open.
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VeganFragrance-FreeDermatologist-TestedParaben-FreeCruelty-Free
Complete the routine

The two steps either side of your serum

Cleanse before it, seal after it. Both are cheaper added here than bought on their own.

GHK-Cu Copper Peptide Serum with GHK-Cu + Hyaluronic Acid
Step 2 · Your serumGHK-Cu Copper Peptide Serum with GHK-Cu + Hyaluronic Acid
✓
Korean Matcha Hydrating Foam Cleanser
Step 1 · Cleanse first

Korean Matcha Hydrating Foam Cleanser

Copper peptides absorb better into properly cleansed skin. Lifts the day off without stripping your barrier.

+ $19.99 $44.99
GHK-Cu Copper Glow Peptide Face Cream
Step 3 · Seal it in

GHK-Cu Copper Glow Peptide Face Cream

A rich overnight balm built on the same GHK-Cu peptide — it seals the serum in while you sleep.

+ $39.99 $79.98
How to use

Thirty seconds, morning and night

Step one: patting freshly cleansed skin dry with a soft white towel
STEP 01

Cleanse

Wash and lightly pat skin, leaving it slightly damp so the serum has something to sink into.

Step two: a glass dropper releasing a pale blue copper peptide serum droplet
STEP 02

Apply 3–4 drops

Press into face and neck until absorbed. Layers clear and never pills under makeup.

Step three: smoothing a visible dollop of white moisturiser across the cheek
STEP 03

Seal it in

Follow with moisturiser. In the morning, finish with SPF.

Build up slowly — don’t start twice daily
Weeks 1–23 nights a week
Weeks 3–4Every other night
Week 5+Nightly — add mornings if skin is happy
✓ Use in the same routineThese sit happily alongside copper peptides — layer them in any order you like.

Niacinamide · Ceramides · Hyaluronic Acid · Moisturiser · SPF

⏰ Use at a different time of dayNot dangerous — they just compete with each other and you lose some of both. Put these in your morning routine and the serum at night.

Vitamin C · AHAs & BHAs · Retinol

Patch test first. Skip it if you have a known copper allergy or Wilson’s disease, and check with your doctor if you’re pregnant or breastfeeding. External use only; avoid the eye area.

Before you buy

Questions, answered

How long does one bottle last?+
One 60 ml bottle is a 2-month supply at full use. Because copper peptides need 8–12 weeks to show their full effect, a single bottle covers a complete results cycle — and the 2- and 3-bottle options carry you 4 and 6 months without reordering.
Is 1% a lot?+
Copper peptide serums are typically formulated between about 0.05% and 2%, and irritation reports climb above roughly 2–3%. 1% sits high enough to matter and comfortably below the level where copper peptides start causing trouble. More isn’t automatically better with this ingredient — what matters is that the number is printed at all, and most brands don’t print it.
Will it make me break out at first?+
It can, for some people — redness, small bumps or breakout-like activity in the first one to three weeks, because the peptide speeds up renewal and brings existing congestion up. Start at 3 nights a week for the first fortnight and it’s far less likely. If it’s still worsening after six weeks, stop and email us.
Why is it blue?+
The blue comes from the copper bound inside GHK-Cu itself — a visual sign of the active peptide, not an added dye. It absorbs clear and won’t stain skin, pillows or clothes.
Is this better than retinol?+
Different tools. Retinol can be powerful but irritating, and it makes skin more sun-sensitive. Copper peptides are gentler and don’t increase sun sensitivity, which is why they suit daily use. Plenty of people run both — copper peptides on non-retinol nights.
Can I use it with vitamin C or retinol?+
Yes — just separate them by time of day. Vitamin C or acids in the morning, this serum at night. They’re not dangerous together, they simply compete and you get less out of both.
Can I use it on my neck and chest?+
Yes, and it’s worth doing — the neck and décolletage show laxity early and get neglected. Same routine, same ramp-up.
Is it safe for sensitive skin?+
It’s fragrance-free, paraben-free and dermatologist-tested. Patch test first and follow the ramp-up. Skip it if you have a known copper allergy or Wilson’s disease, and check with your doctor if you’re pregnant or breastfeeding.
What if it doesn’t work for me?+
Send it back within 30 days for a full refund — even if the bottle is open.
Why your skin needs it back

Your body makes this peptide. By 60, it makes 60% less.

GHK-Cu isn’t something new being put into skincare. It’s something your own body runs out of.

AGE 20
≈200 ng/mL in plasma
AGE 60
under 80 ng/mL

Published figures for GHK levels in human blood plasma — a drop of more than 60% across four decades.

1973Found

Isolated from human blood

Dr Loren Pickart identified GHK in human plasma and found it made aged tissue behave more like young tissue. Fifty years of study followed.

71Women

A published 12-week facial trial

A GHK-Cu cream was applied for 12 weeks to 71 women with sun-damaged skin, measuring skin density, thickness, laxity and fine lines.

<500Daltons

Small enough to get through

Most actives are too large to cross the skin’s outer barrier. GHK-Cu is one of the few copper complexes small enough to — which is why it works topically at all.

Research described here concerns the GHK-Cu peptide itself, not this specific formulation. Zyntra has not conducted its own clinical trial. Individual results vary.

What it does

Three things you’ll actually notice

Skip the biochemistry. Here’s what changes, and roughly when.

Woman pressing her fingertips into her cheek to show skin springing back
Firmer · weeks 6–12

Skin that bounces back

Copper peptides signal skin to build collagen and elastin — the two proteins behind that snap. It’s the slowest change, and the one people notice around week 8.

Fingers running across a cheek to feel how smooth the skin is
Smoother · weeks 3–6

Texture you can feel

A calmer, more even-looking surface and softer-looking fine lines. Makeup stops catching and starts gliding.

Visibly dewy hydrated skin straight after a skincare routine
Hydrated · day 1

Plump from the first morning

The hyaluronic acid does this immediately, long before the peptide’s slower work shows. It’s why the bottle feels worth it on night one.

Also associated with copper peptides
Look of refined poresMore even-looking toneSkin density & thicknessAntioxidant supportCalmer-looking skinSofter-looking scars
What’s actually in it

Two ingredients. Here’s what each one is.

If you’ve never heard of either, that’s normal. Neither name tells you anything useful — so here’s the plain version.

Pale blue GHK-Cu copper peptide serum texture
Say it: “G-H-K copper”

GHK-Cu

What it is: a tiny protein fragment — just three amino acids — with a copper atom attached. Your body already makes it. It’s in your blood.

What it does: it acts as a signal. It tells skin cells to produce collagen and elastin, and helps clear out damaged collagen so newer fibres can replace it. That’s why the change is gradual rather than overnight.

Why it’s blue: the copper. Not a dye. It absorbs clear.

1% — the sweet spot, and printed on the label
Clear hyaluronic acid gel droplet
Also called sodium hyaluronate

Hyaluronic Acid

What it is: a moisture magnet. Your body makes this one too — it’s part of what keeps young skin looking plump.

What it does: it pulls water into the surface layers of your skin and holds it there — over a thousand times its own weight in water. That’s the instant plumpness, and it’s what stops a peptide serum feeling tight or dry.

Included — not a separate purchase
Why they’re in the same bottle

These two aren’t just sharing a bottle — they work better together.

Laboratory and ex-vivo skin research on GHK-Cu paired with hyaluronic acid found the combination raised collagen IV production well beyond either ingredient on its own. Collagen IV sits at the junction between your skin’s upper and lower layers — the seam that keeps skin looking taut. The hyaluronic acid also creates the hydrated environment copper peptides absorb into best. Cell and ex-vivo skin research on the ingredient pairing, not a human trial of this product.

And nothing else you’d need to worry about
✕Fragrance✕Parabens✕Dyes✕Sulfates✕Animal testing
What to expect

Copper peptides compound. Here’s the arc.

Not a one-week active. Consistency does the work — which is why one bottle covers a full cycle.

DAY 1

Instant hydration

Skin drinks it in and looks softer and plumper — that’s the hyaluronic acid working immediately.

WEEK
1–2

Calmer, smoother

Skin feels smoother to the touch and looks less irritated. The tight, dry feeling eases off.

WEEK
3–6

More even texture

Tone looks more even, texture more refined. Makeup glides instead of catching.

WEEK
8–12

Firmer & more radiant

The payoff. Published research on the peptide puts visible firmness and fine-line change in this window.

Individual results vary. One 60 ml bottle is a 2-month supply at full use.

The honest bit

Some people get worse before better. Here’s why.

⚠
The “copper uglies”

A minority of people get redness, small bumps or breakout-like activity in the first one to three weeks. It happens because GHK-Cu speeds up skin renewal, which brings existing congestion to the surface faster than usual. It typically settles within a few weeks.

The single biggest cause is going straight to twice a day from day one. So don’t. Here’s the way in:

  1. Weeks 1–2: 3 nights a week only.
  2. Weeks 3–4: every other night.
  3. Week 5 on: nightly, then add mornings if your skin is happy.

If it’s getting worse after six weeks rather than better, that’s not an adjustment period — stop and email us. We’d rather refund you than have you push through something that isn’t working.

Most people never experience this at all. We’d just rather you hear it from us than find out and assume something went wrong.

Give it 12 weeks.

That’s what the research says it takes — and one bottle covers the whole thing. From $18.33 a month.

↑ Choose your supply30-day money-back · Free shipping $50+ · Cruelty-free

These statements describe the cosmetic appearance benefits of this product. This product is intended to improve the look of skin and does not alter its structure or function. Individual results may vary. Not evaluated by the FDA; not intended to diagnose, treat, cure or prevent any disease. For external use only; avoid the eye area and discontinue use if irritation occurs.