Zentucia's targeted 2% GHK-Cu serum for crepey-looking neck, chest, and hands that seem to be aging faster than your face — gentle enough for sensitive skin
Zentucia™ Pure Copper Peptide Serum
- Helps Skin Look Plumper & Hydrated
- Targets Wrinkly Face, Neck & Hands
- Supports Collagen, Elasticity & Firm Skin
- Dermatologist-Created Formula
We built Zentucia because copper peptides with hyaluronic acid in a lightweight serum is specifically designed for the neck, chest, and hands. The formula helps support hydration and a smoother looking appearance.
See it in action
Zentucia™ Pure GHK Copper Peptide Serum
Zentucia is engineered for firmer, smoother skin.
Zentucia is engineered for firmer, smoother skin.
Collagen & Firmness Support
GHK-Cu signals your skin to support its natural collagen and elastin production — the structural proteins behind firm, bouncy-looking skin that decline with age.
Gentle Enough for Daily Use
No stinging, no purging, no adjustment period. Peptides from Zentucia deliver broad anti-aging support without the irritation that makes retinoids and vitamin C hard for many people to tolerate.
Clean Hydration & Barrier Support
Ectoin, PGA, and ferment lysate hydrate, calm, and support your skin barrier — so it doubles as your daily hydrating serum, not just a treatment step.
Naturally Blue, No Dyes
Real GHK-Cu at effective concentrations is visibly blue. If a copper peptide serum is clear, there isn't enough peptide in it to matter. The color is your proof.
INGREDIENTS BREAKDOWN
Pure GHK-Cu
Improves skin firmness and tightness
PDRN
Helps replenish and condition the skin
Hyaluronic Acid
Provides hydration and keeps skin comfortable
Hydrolyzed Collagen
Supports skin smoothness and hydration
Rated by Verified Customers
Your Skin's Journey Ahead
Follow your progress and see what's ahead on your path to success. Great skin isn't built overnight.
Here's what to expect as GHK-Cu goes to work.
THE FIRST DROP
Cleanse, apply 1–2 drops, and let it set.
You'll notice the payoff immediately: a subtle glow, deep hydration, and a smooth finish that isn't tacky. This is the part you feel on day one, and the reason you'll actually look forward to tomorrow's application.
BUILDING THE HABIT
What you notice: no stinging, no purging, no adjustment period — skin stays calm.
What's happening: GHK-Cu works without irritation, so daily use never becomes a battle.
What to do: settle into morning, night, or both. Layer with your retinol or vitamin C as usual.
DEEPER WORK
What you notice: skin feels consistently hydrated, comfortable, and balanced.
What's happening: GHK-Cu supports your skin's natural collagen and elastin — the slow, structural work beneath the surface.
What to do: stay consistent. This phase rewards the routine you built in Phase 2.
VISIBLE PAYOFF
This is what you stayed consistent for: skin that looks firmer, smoother, and bouncier. Skin renewal is gradual by nature — and because peptides stay gentle forever, this becomes a routine you keep, not a treatment you cycle off.
How Firmer, Smoother Skin Actually Builds Daily
Real change in skin builds with consistency, here's what to expect.
Not satisfied? Get a full refund within 60 days, no questions asked.
Instant Hydration & Glow
From the first application: the serum sets quickly, leaves a subtle glow, and skin feels hydrated without any tacky finish. This is the part you notice on day one.
Calm, Comfortable Skin
No stinging, no purging, no adjustment period. While retinoids and vitamin C make many people push through weeks of irritation, peptides let your skin stay calm from the start — so daily use actually stays daily.
Firmness That Builds*
With consistent use, GHK-Cu supports your skin's natural collagen and elastin — the slow, structural work behind firmer, bouncier-looking skin. Skin renewal takes weeks, and this is where showing up daily pays off.
Our Remedy, Real Results
Non-greasy
Smooth Skin
Satisfaction
Complaints
Frequently Asked Questions
Find answers to common questions about our products, shipping, returns, and more.
That's the GHK-Cu itself. Copper peptides at effective concentrations are naturally blue — no dyes added. Clear "copper peptide" serums typically contain too little to matter.
Hydration and glow are immediate. Firmness and fine-line benefits build gradually with consistent daily use — skin renewal takes weeks, not days. Your purchase is backed by our 60-day money-back guarantee, so you have time to see how your skin responds.
Morning or night, or both. Cleanse, apply 1–2 drops to the face, let it set for a moment, then follow with moisturizer.
Zentucia's Copper Peptide Serum are among the gentlest actives in skincare and are generally well tolerated, even by sensitive skin — that's one of our biggest advantages over vitamin C and retinoids. As with any new skincare product, patch test first, and stop use if irritation occurs.
It supports skin firmness, elasticity, and the look of fine lines, alongside hydration and barrier support from the rest of the formula. Think of it as sitting in the space between a hydrating serum and a retinoid: broad anti-aging support without the irritation.
We accept major credit cards, PayPal, Shop Pay, and Apple Pay for your convenience and security.
Standard shipping typically takes 5-7 business days within the continental US. International shipping times vary by location.
We offer a 60-day return policy. If you're not satisfied with your purchase, you can return it within 60 days for a full refund or exchange.
GHK-Cu is a copper peptide naturally found in your body, with levels that decline as you age. It is one of the most-studied peptides in skincare, with research supporting its role in collagen production, elasticity, and skin firmness. Unlike retinoids and vitamin C which many people may find irritating — peptides are gentle enough for nearly every skin type, morning and night. Zentucia's serum is naturally blue, which is why the serum has its signature color.
Money-Back Guarantee
We're so confident in the quality of our product that we offer a satisfaction guarantee. If you're not completely satisfied with your purchase, simply return the item within 60 days for a full refund.
CLAIM NOWMoney-Back Guarantee
We're so confident in the quality of our product that we offer a satisfaction guarantee. If you're not completely satisfied with your purchase, simply return the item within 60 days for a full refund.
CLAIM NOW