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GHK-Cu

Copper Peptide Serum

4.8 1,200+ reviews

GHK-Cu is a copper peptide your skin already makes, and makes less of with age. This serum puts it back: six clean ingredients for visibly firmer, smoother skin.

30-day money-back guarantee. Free shipping.

Meet the serum
  • Helps visibly firm and smooth the look of skin
  • Immediate hydration from 1.50% hyaluronic acid
  • Six ingredients, no fragrance, no fillers
  • Vegan & cruelty-free
Details
  • GHK-Cu (Copper Tripeptide-1) at 0.10%, studied for over 50 years
  • Ultra-lightweight, absorbs fast with no residue or pilling
  • The blue color is the copper peptide itself, not a dye
Why subscribe
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How to apply
  • Press 2-3 drops into clean, dry skin
  • Follow with moisturizer, and SPF in the morning
  • Use AM and/or PM, daily
Ingredients
  • GHK-Cu (Copper Tripeptide-1) · 0.10%
  • Sodium Hyaluronate · 1.50%
  • Water, Pentylene Glycol, Phenylpropanol, Sodium Hydroxide
  • That's the whole list, nothing else
30-Day Money-Back Guarantee Cruelty-Free Fragrance-Free Paraben-Free Vegan

Your skin already knows this peptide. It just makes less of it.

GHK-Cu is a copper peptide your skin naturally contains, at its highest levels when you're young. Like hydration and bounce, your natural supply tapers with age.

Studied for over 50 years, GHK-Cu is one of the most researched peptides in skin science, prized for supporting the look of firmer, smoother, more resilient skin. This serum simply puts it back.

Before
After
After
Before

Helps firm. Helps smooth. Hydrates from day one.

One lightweight serum with three jobs. It absorbs in seconds and gets to work while you go about your day.

Helps firm. Helps smooth. Hydrates from day one.
  • Visibly firmer

    Helps improve the appearance of firmness and elasticity with consistent daily use.

  • Visibly smoother

    Supports a smoother, more even-looking surface and softens the look of fine lines over time.

  • Hydrated from day one

    1.50% hyaluronic acid draws and holds moisture for immediate, lasting hydration and a plumper look.

Results that build over time

GHK-Cu rewards consistency. Here's what most people notice, from the first application to week twelve.

  1. Day 1

    Hydrated, soft, smooth

  2. Weeks 1-2

    Softness and radiance

  3. Weeks 3-4

    A more refined surface

  4. Weeks 6-8

    Visible firmness

  5. Week 12+

    Maximum benefit

How to get there

Use once or twice daily: morning, night, or both. Individual results may vary.

Results that build over time
Results that build over time Results that build over time

Six ingredients. That's the whole list.

No fragrance, no silicones, no filler. When the label is this short, you can actually read it, and every ingredient earns its place.

GHK-Cu

GHK-Cu

0.10%

The hero active. A tripeptide (three amino acids) bound to copper, studied for over 50 years for supporting the look of firmer, smoother skin. It's also why the serum is blue: that color is the peptide itself, not a dye.

Sodium Hyaluronate

Sodium Hyaluronate

1.50%

Hyaluronic acid, a natural polysaccharide that draws and holds moisture, for immediate hydration and a plumper, more supple appearance.

The Clean Base

The Clean Base

Water, pentylene glycol, phenylpropanol, sodium hydroxide. A minimalist carrier, a humectant, a gentle preservative, and a touch of pH balancer. Nothing that doesn't earn its place.

6 Ingredients total
0 Fragrance
0 Silicones
0 Parabens
0 Sulfates
0 Dyes

Loved by customers

5 out of 5
Based on 73 reviews
My skin drinks this up. It absorbs in seconds, and within a couple of weeks my face felt noticeably smoother and more hydrated.
Alex M. Verified reviewer
Three months in and the difference is real. Firmer skin, softer lines around my eyes. It's the only serum I've ever finished and reordered.
Jordan P. Verified reviewer
I have sensitive skin, and six ingredients was the selling point. No sting, no smell, just a little blue serum that does its job.
Sam R. Verified reviewer

Customer results have not been independently verified. Individual results may vary.

Two minutes, morning or night

Two minutes, morning or night

  1. Step 1: Cleanse

    Start with clean, dry skin so nothing competes with the active.

  2. Step 2: Apply 2-3 drops

    Press and pat gently into face and neck until fully absorbed.

  3. Step 3: Lock it in

    Follow with your moisturizer. In the morning, finish with SPF.

How we compare

Our serum Typical serum
Clinically-studied GHK-Cu at 0.10%
Six-ingredient formula
Fragrance-free
No silicones or fillers
Transparent percentages
Cruelty-free & vegan
30-day money-back guarantee

Before you buy

What exactly are copper peptides?
GHK-Cu (Copper Tripeptide-1) is a small copper-bound peptide and one of the most extensively studied actives in skin science. In skincare, it's valued for supporting the look of firmer, smoother, more refined skin.
Does my skin really make GHK-Cu?
It does. Your body produces it naturally, with the highest levels when you're young. Like hydration and bounce, your natural supply tapers with age. This serum puts it back topically.
Why is the serum blue?
That color isn't a dye. It's the copper peptide itself, and the natural blue hue is a built-in sign that the GHK-Cu in your bottle is present and active.
When will I see results?
Skin feels hydrated and smooth from day one. Most people notice improved softness within 1-2 weeks, a more refined surface around 3-4 weeks, and visibly improved firmness with softer-looking fine lines around 6-8 weeks. Individual results may vary.
Can I use it with my other products?
Yes. It layers cleanly over hyaluronic acid and under moisturizer, morning or night. Keep strong exfoliating acids (AHA/BHA), retinoids, and high-dose vitamin C in a separate routine step.
Is it good for sensitive skin?
It's fragrance-free, silicone-free, and built on just six ingredients, which many people with sensitive skin appreciate. As with any new active, patch test first. The side of your neck works well.
What's not in it?
No parabens, sulfates, phthalates, dyes, silicones, or synthetic fragrance. Vegan and never tested on animals.

Put the peptide back

Visibly firmer, smoother skin in one daily step. Simple. Clean. Effective.

Get the serum
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