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.
I 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
My face feels and looks much better already. I feel like any guy can benefit from this product.
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
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.
I 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
My face feels and looks much better already. I feel like any guy can benefit from this product.
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
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.
I 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
My face feels and looks much better already. I feel like any guy can benefit from this product.
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
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.
I 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
My face feels and looks much better already. I feel like any guy can benefit from this product.
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
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.
I 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
My face feels and looks much better already. I feel like any guy can benefit from this product.
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
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.
I 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
My face feels and looks much better already. I feel like any guy can benefit from this product.
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
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.
I 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
My face feels and looks much better already. I feel like any guy can benefit from this product.
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
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.
I 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
My face feels and looks much better already. I feel like any guy can benefit from this product.
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
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.
I 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
My face feels and looks much better already. I feel like any guy can benefit from this product.
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
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.
I 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
My face feels and looks much better already. I feel like any guy can benefit from this product.
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
This is amazing! I've tried dozens of different serums for my face, none did what this one has! My boyfriend and I both use it.
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.
Solid improvement. Saw it on a instagram ad. I never write reviews but this actually works. Highly recommend this copper peptide serum.
LIFE CHANGER. I've been trying to support my skin for years, and nothing worked until I found this! Sounds dramatic I know but I'm serious. On to my 7th bottle.
This is amazing! I've tried dozens of different serums for my face, none did what this one has! My boyfriend and I both use it.
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.
Solid improvement. Saw it on a instagram ad. I never write reviews but this actually works. Highly recommend this copper peptide serum.
LIFE CHANGER. I've been trying to support my skin for years, and nothing worked until I found this! Sounds dramatic I know but I'm serious. On to my 7th bottle.
This is amazing! I've tried dozens of different serums for my face, none did what this one has! My boyfriend and I both use it.
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.
Solid improvement. Saw it on a instagram ad. I never write reviews but this actually works. Highly recommend this copper peptide serum.
LIFE CHANGER. I've been trying to support my skin for years, and nothing worked until I found this! Sounds dramatic I know but I'm serious. On to my 7th bottle.
This is amazing! I've tried dozens of different serums for my face, none did what this one has! My boyfriend and I both use it.
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.
Solid improvement. Saw it on a instagram ad. I never write reviews but this actually works. Highly recommend this copper peptide serum.
LIFE CHANGER. I've been trying to support my skin for years, and nothing worked until I found this! Sounds dramatic I know but I'm serious. On to my 7th bottle.
This is amazing! I've tried dozens of different serums for my face, none did what this one has! My boyfriend and I both use it.
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.
Solid improvement. Saw it on a instagram ad. I never write reviews but this actually works. Highly recommend this copper peptide serum.
LIFE CHANGER. I've been trying to support my skin for years, and nothing worked until I found this! Sounds dramatic I know but I'm serious. On to my 7th bottle.
This is amazing! I've tried dozens of different serums for my face, none did what this one has! My boyfriend and I both use it.
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.
Solid improvement. Saw it on a instagram ad. I never write reviews but this actually works. Highly recommend this copper peptide serum.
LIFE CHANGER. I've been trying to support my skin for years, and nothing worked until I found this! Sounds dramatic I know but I'm serious. On to my 7th bottle.
This is amazing! I've tried dozens of different serums for my face, none did what this one has! My boyfriend and I both use it.
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.
Solid improvement. Saw it on a instagram ad. I never write reviews but this actually works. Highly recommend this copper peptide serum.
LIFE CHANGER. I've been trying to support my skin for years, and nothing worked until I found this! Sounds dramatic I know but I'm serious. On to my 7th bottle.
This is amazing! I've tried dozens of different serums for my face, none did what this one has! My boyfriend and I both use it.
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.
Solid improvement. Saw it on a instagram ad. I never write reviews but this actually works. Highly recommend this copper peptide serum.
LIFE CHANGER. I've been trying to support my skin for years, and nothing worked until I found this! Sounds dramatic I know but I'm serious. On to my 7th bottle.
This is amazing! I've tried dozens of different serums for my face, none did what this one has! My boyfriend and I both use it.
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.
Solid improvement. Saw it on a instagram ad. I never write reviews but this actually works. Highly recommend this copper peptide serum.
LIFE CHANGER. I've been trying to support my skin for years, and nothing worked until I found this! Sounds dramatic I know but I'm serious. On to my 7th bottle.
This is amazing! I've tried dozens of different serums for my face, none did what this one has! My boyfriend and I both use it.
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.
Solid improvement. Saw it on a instagram ad. I never write reviews but this actually works. Highly recommend this copper peptide serum.
LIFE CHANGER. I've been trying to support my skin for years, and nothing worked until I found this! Sounds dramatic I know but I'm serious. On to my 7th bottle.
Follow these simple steps for best results
Start with clean, dry skin.
Dispense 2–3 drops and apply to face and neck.
Work it in gently until fully absorbed. 60 seconds.
(Optional) Layer moisturizer or SPF on top. Done.
GHK-Cu is one of the most studied peptides in skincare — over 70 published studies covering collagen production, skin elasticity, wound repair, and cellular regeneration. It's not a new ingredient and it's not a trend. It was first identified in 1973 and has decades of research behind it.
The reason most people don't see results from copper peptide products isn't the ingredient — it's the dose. The majority of brands formulate at 0.5–1% to cut costs. At that concentration, you're unlikely to notice much. Our formula uses 2% — the maximum effective topical concentration — which is why our customers see results that other serums haven't delivered.
Other brand formula's uses 0.25-1% GHK-Cu. Ours uses 2%. That's double the active concentration.
Beyond that: our formula pairs the peptide with a 1.5% sodium hyaluronate complex, which means you're getting deep hydration alongside the collagen-signaling benefits — not just a standalone peptide in a basic base. Other companies don't include this.
We also back every order with a 90-day money-back guarantee. They don't offer anything close to that. If you've tried theirs and felt underwhelmed, concentration is almost certainly why.
Here's an honest timeline based on what our customers consistently report:
Week 1: Less morning puffiness. Skin looks slightly cleaner and more refreshed. The hyaluronic complex is working immediately — you'll notice the hydration before the peptide effects fully kick in.
Weeks 3–4: Smoother texture, more even tone. This is when people start asking what you've changed. You'll notice it in photos and in normal lighting.
Weeks 8–12: Firmer, more defined-looking skin. This is the compound result of consistent daily use — collagen signaling takes time to show up structurally, but when it does, the difference is noticeable.
Individual results vary. But if you stop after two weeks because you haven't seen a dramatic change yet, you've quit before the best part.
Yes — but timing matters.
With retinol: Don't apply them at the same time. GHK-Cu and retinol can counteract each other when layered simultaneously. The protocol that works: GHK-Cu in the morning, retinol at night. You get the benefits of both without interference.
With vitamin C: Apply vitamin C first, let it fully absorb, then apply GHK-Cu on top. Both are morning-friendly actives and they don't conflict when applied this way.
With SPF and moisturizer: No issues. Apply GHK-Cu first, let it absorb, then layer your moisturizer and SPF over it as normal.
If you're already using retinol and want to add this, the 6-month supply is the right call — you're building a long-term stack, not testing a single product.
No. The formula is non-comedogenic, oil-free, and fragrance-free. It won't clog pores and it doesn't contain any of the common irritants — no parabens, no sulfates, no synthetic dyes, no artificial fragrance.
It's a lightweight water-based serum. It absorbs fully within about 60 seconds and leaves no residue. The vast majority of customers — including those with sensitive or acne-prone skin — tolerate it without any issues.
If you're extremely sensitive, we recommend a 24-hour patch test on your inner arm before full application. But breakouts from this formula are not something we hear about.
Because one bottle covers about 30 days, and 30 days isn't long enough to see the full result.
The timeline is real: puffiness and hydration improve in the first week or two. Texture and tone improve around weeks 3–4. The structural changes — firmer, more defined-looking skin — show up at weeks 8–12. That's the result people are actually after, and it requires consistent daily use to get there.
One bottle gets you started. Three bottles gets you to the point where the results are undeniable. Six bottles keeps you there at the lowest cost per bottle we offer — $0.48 per day — so you're not paying full price every time you re-order mid-progress.
Most people who start with one bottle re-order anyway. The bundle just means you never run out, you never break the streak, and you pay less for it.
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.
The longer you use it, the better it works. Most customers don't go back.
Free shipping · 90-day guarantee · Results or your money back
Most copper peptide serums stop at 1% because it's cheaper to produce. I found that out after spending months researching why results were underwhelming across the entire category. So I built the formula the research actually supports — 2% GHK-Cu, nothing compromised.
I wasn't trying to build a brand. I was trying to build something that actually worked.
— Evan Carter, Founder
Read The Full Story →The formula most brands were selling wasn't good enough. It still isn't.
Shop The FormulaFree shipping. Results or your money back. No questions asked.
