My fine lines look softer.
I've been using this at night for about a month and the fine lines around my eyes don't look as noticeable. My skin also feels a lot smoother.
Rachel K.
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Daily Line-Smoothing Serum · 60 mL
GHK-Cu Copper Peptide Serum
A daily copper peptide serum designed to visibly smooth fine lines and support firmer, healthier-looking skin over time.
Made For
30-Day Satisfaction Guarantee
Free U.S. shipping on every order. Shipping & returns
01
Cleanse
Clean, dry skin
02
GHK-Cu Serum
The targeted step
03
Moisturize
Seal it in
Fine lines don’t usually appear all at once. You notice a forehead line in certain lighting. Fine lines around your eyes. Texture that doesn’t look quite as smooth as it used to.
GHK-Cu Copper Peptide Serum gives those concerns one dedicated daily step — designed to support smoother, firmer and healthier-looking skin over time.
Forehead · Eyes · Mouth · Texture
The forehead line that doesn’t disappear quite as quickly. The fine lines around your eyes that weren’t there a few years ago. The little changes you suddenly notice when the bathroom lighting hits differently.
You don’t need to change your face. You just want your skin to look smoother again. That’s where this serum comes in.
For the lines you’re starting to notice
Smoother-looking lines
Designed to help soften the appearance of fine lines and visible texture.
Firmer-looking skin
Peptide-rich skincare supports a more resilient, firm-looking appearance.
Plumper hydration
Hyaluronic acid and humectants help replenish moisture for smoother, plumper-feeling skin.
Healthier-looking skin
Daily antioxidant and skin-conditioning support helps maintain a refreshed, resilient appearance.
Where you see it first
One daily serum designed to address the visible signs of skin aging across the face — applied across the face and neck, avoiding direct contact with the eyes.
The reason to believe
You came for smoother-looking skin. Here’s what’s behind the formula.
Copper Tripeptide-1 (GHK-Cu)
A copper-binding peptide used in skincare to support natural renewal processes and healthier-looking, resilient skin.
Hyaluronic Acid
Helps attract and retain moisture for hydrated, plumper-feeling skin.
Niacinamide
Supports the appearance of smoother, more even-looking skin while helping maintain the moisture barrier.
Glycerin
A proven humectant that helps draw moisture into the skin for lasting hydration.
Butterfly Pea Flower Extract
An antioxidant-rich botanical that helps soothe and condition the skin — and gives the serum its naturally blue hue, never artificial dyes.
Sodium Phytate
A gentle, rice-derived ingredient that supports the look of clarity and even tone while keeping the formula stable.
Naturally blue-tinted
The blue tone comes from the formula itself — its botanical and peptide ingredients, including butterfly pea flower — not artificial blue dye.
Your serum has one job in the routine: deliver targeted skincare before your moisturizer.
GHK-Cu Copper Peptide Serum gives fine lines, visible texture and firmness a dedicated daily step — without turning your routine into ten products.
Cleanse
GHK-Cu Serum
Moisturize
SPF — morning
Simple enough for every day.
Targeted enough to earn its place.
Cleanse
Begin with clean, dry skin.
Apply GHK-Cu Serum
Press 3–4 drops across the face and neck with your fingertips, avoiding direct contact with the eyes.
Moisturize
Follow with your preferred moisturizer to seal the routine in.
SPF — morning
Finish daytime routines with a broad-spectrum sunscreen.
Apply nightly. Use it consistently for at least 8–12 weeks.
Individual results vary. For external use only — avoid direct contact with the eyes, and discontinue use if irritation occurs.
When fine lines start showing up, it’s easy to build an entire shelf trying to address them. PEPTYD takes a simpler approach.
Give visible lines and texture one dedicated serum. Then moisturize. Then get on with your day.
Cleanse → Serum → Moisturize
Targeted skincare without the 12-step routine
GHK-Cu Serum
For the lines you’re starting to notice.
You’re here
Architectural Complex 39C
The final step after your red-light mask.
View productBarrier Recovery
The recovery step after your actives.
View productSize & Value
A generously sized daily serum, made for the kind of consistent nightly use that peptide skincare asks for. 3–4 drops across the face and neck is all one application needs.
Free U.S. shipping on every order.
Building the full routine? See the Complete PEPTYD System
If it isn’t right for your routine, return it within 30 days of delivery in line with our return policy.
Shipping & ReturnsWhat early customers are saying
I've been using this at night for about a month and the fine lines around my eyes don't look as noticeable. My skin also feels a lot smoother.
Rachel K.
This has become my favorite serum. My skin looks more plump and firm, especially around my cheeks and jawline.
Nicole D.
I bought it mainly for anti-aging and after a few weeks my skin looks smoother and more refreshed. The lines around my mouth seem less obvious too.
Sarah B.
I love how lightweight this is. My skin feels hydrated, but the biggest difference is that it looks firmer and the texture has improved a lot.
Emily C.
GHK-Cu, or Copper Tripeptide-1, is a small copper-binding peptide naturally found in the body and widely used in cosmetic skincare. In a topical formula it is used to support the skin’s natural renewal processes and healthier-looking, more resilient skin.
One daily copper peptide serum for smoother, firmer, healthier-looking skin.
60 mL · 30-Day Satisfaction Guarantee
$78
60 mL · Daily serum