4.8/5 based on 1046 reviews

The 2% formula. Less Puffiness. Sharper Definition.

Helps reduce the look of marks & uneven texture
Supports smoother, clearer-looking skin
Improves skin quality over time
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LESS PUFFINESS. MORE DEFINITION.

LESS PUFFINESS. MORE DEFINITION. CLEANER LOOKING SKIN

The Science Behind GHK-Cu

GHK-Cu isn't a trend. It's a naturally occurring peptide your body already produces — and one that scientists have been studying since 1973.

Over 70 published studies document what it does at the cellular level: it signals the cells responsible for collagen and elastin production to increase output. More collagen means denser, firmer-feeling skin. More elastin means skin that stays tight instead of going soft.

The problem is concentration. Most brands formulate at 0.5–1% to cut costs. Too low for consistent results. We use 2%, the maximum effective topical dose, paired with 1.5% sodium hyaluronate for hydration that works immediately while the peptide effects build over time.

Absorbs in 60 seconds. No residue. Gets more effective the longer you use it.

Very good 4.8/5 based on 1046 verified reviews

What Our Customers Are saying...

Review by Adrian S.
Adrian S., 28
didn’t expect results this fast. Skin looks firmer for sure. Only got the month supply and decided to write this a review after a re up
Review by Imad H.
Imad H., 32
I was skeptical at first, but after using this for a month, I'm a true believer. The quality is outstanding!
Review by Jaylen B.
Jaylen B., 24
Skeptical at first, but this peptide topical is the real deal. My face looks 10x better and skin feels better than ever. Onto my second bottle now.
Review by Sam A.
Sam A., 30
Genuinely happy with the results of this copper peptide serum from D20. It took about 3 weeks to start noticing change. Been on it for 3 months now and look like a whole different person. Visited my mom yesterday and she told me im "glowing" and look happier lol
Review by Jake A.
Jake A., 22
Been using this peptide serum for about three weeks and my skin looks healthier overall. Smoother texture, more even tone. And it absorbs really nicely without feeling heavy. Face feels less bloated overall. Good stuff. Would recommend.
Review by Sevan G
Sevan G, 19
Solid improvement. Saw it on a instagram ad. I never write reviews but this actually works. Highly recommend this copper peptide serum.

Frequently Asked Questions

Find answers to common questions about our products, shipping, returns, and more.

How do I use it? +

Recommended for use morning or night. Apply a small amount to clean, dry skin and gently massage until absorbed. Follow with your moisturizer or night cream.

If you have sensitive skin, we suggest patch-testing a small amount on the neck before applying to the face.

How long before I see results? +

Most users notice a fresher look within days. Texture and marks improve progressively over weeks.

Can I use it every day? +

Yes — it’s made for daily use, morning or night.

Will it break me out? +

The formula is designed to be lightweight and well-tolerated. Always patch test first.

Can I use it with other products? +

Yes, but avoid mixing with strong actives at the same time for best results.

Is it just hydration? +

No — it helps improve how your skin looks over time, not just how it feels short-term.

Ingredients +

Water, Pentylene Glycol, Phenylpropanol, Sodium Hyaluronate (1.5%), Copper Tripeptide-1 (0.10%), Sodium Hydroxide.

What is your return policy? +

Processing: 1-3 days.

Once your product has shipped, it usually takes 6 to 12 business days.

If you have not received your products, feel free to contact us using our contact page.

We stand behind every product we make. If you’re not completely satisfied with your purchase, you can return it within 30 days in accordance with our return policy — no questions asked.

How long before I see results? +

Most users notice a fresher look within days. Texture and marks improve progressively over weeks.

Will it break me out? +

The formula is designed to be lightweight and well-tolerated. Always patch test first.

Is it just hydration? +

No — it helps improve how your skin looks over time, not just how it feels short-term.

What is your return policy? +

Processing: 1-3 days.

Once your product has shipped, it usually takes 6 to 12 business days.

If you have not received your products, feel free to contact us using our contact page.

We stand behind every product we make. If you’re not completely satisfied with your purchase, you can return it within 30 days in accordance with our return policy — no questions asked.