Couldn't load pickup availability
Acne is not a hygiene problem. It is an inflammatory response.
Most products only target the symptoms — drying out the skin, damaging the skin barrier, and worsening the problem over time.
GHK-Cu targets the root cause:
• Helps reduce inflammatory markers linked to acne, including IL-6 and TNF-α
• Copper has antimicrobial properties against P. acnes bacteria
• Niacinamide helps regulate sebum production and reduce redness
• Hyaluronic Acid hydrates without clogging pores
No drying. No stripping. Your skin is repaired — not attacked.
GHK-Cu is not a trend. It is one of the most researched peptides in dermatology.
GHK-Cu Peptide:
• Over 4,000 peer-reviewed studies
• Stimulates Type I and III collagen production in fibroblasts (Maquart et al., 1988)
• Helps inhibit the NF-κB signaling pathway and reduce IL-6 and TNF-α (Pickart et al., 2012)
• Influences over 4,000 genes toward a more youthful expression profile (Broad Institute / CMAP)
• Shown to outperform Retinol and Vitamin C in skin density improvement — without irritation (Leyden et al.)
• Natural production declines by over 60% between the ages of 20 and 60
Niacinamide (Vitamin B3):
• Clinically shown to help reduce excess sebum production
• Supports ceramide synthesis in the skin barrier
• Helps reduce hyperpigmentation and redness
Hyaluronic Acid:
• Binds up to 1,000 times its weight in water
• Helps plump the skin and support optimal peptide performance
• GHK-Cu (Copper Peptide): Supports collagen production, skin regeneration, and improved firmness and skin texture.
• Hyaluronic Acid: Provides deep hydration, helps plump the skin, and supports the effectiveness of the peptides.
Additional Ingredients: Aqua (Water), Glycerin, Hydroxyethylcellulose, 1,2-Hexanediol, Copper Tripeptide-1, Sodium Hyaluronate, Niacinamide, Disodium EDTA.
No fillers. No unnecessary additives — only ingredients with a real function.
Step 1 — Cleanse
Wash your face with water or a gentle cleanser.
Step 2 — Apply
Place 2–3 drops onto your fingertips and apply evenly to the face and neck.
Step 3 — Let absorb
Do not rinse off. Can be used alone or underneath a moisturizer.
Use morning and/or evening. For optimal results, use consistently for at least 8–12 weeks.
At Curivea, we ship our products to customers worldwide.
Every order is carefully prepared and shipped to ensure it arrives quickly and safely.
Most orders arrive within 3–5 business days.
For more information, please visit our shipping page.
CU Serum combines GHK-Cu copper peptides with Cycloastragenol and hyaluronic acid — a dual-active formula that targets collagen synthesis and cellular aging simultaneously.
Shop now
1% GHK-Cu + 0.5% Cycloastragenol. Copper rebuilds collagen. Cycloastragenol targets the cellular clock. Two mechanisms in one dropper.
Hyaluronic acid for instant hydration. Lightweight, fast-absorbing. Layers under CU Tallow or any moisturizer.
Transparent dosing. No fillers. Every ingredient on the label. Every percentage visible. Week eight — you see the difference.
Most serums contain one active. CU Serum targets two aging pathways at once — collagen synthesis and cellular renewal.
GHK-Cu signals your fibroblasts to produce collagen I, III, and V — the building blocks of firm, elastic skin.
Cycloastragenol is researched for telomerase activation — an additional mechanism targeting cellular aging from the inside.
Hyaluronic acid binds 1,000x its weight in water. Plumps and hydrates from the first drop.
GHK-Cu strengthens the skin barrier and reduces inflammatory cytokines. Less redness, less sensitivity.
Visible firming within weeks. The combination of peptide signaling and deep hydration plumps fine lines from within.
Absorbs in seconds. No sticky residue. Layers perfectly under any moisturizer or sunscreen.
No filters. No editing. Consistent use of GHK-Cu copper peptides over 8–12 weeks.
Individual results may vary. Photos show results after consistent GHK-Cu use.
Transparent concentration. Dual-active formula. No hidden dosages.
| CU Serum | The Ordinary | NIOD CAIS3 | Vitali 3% | |
|---|---|---|---|---|
| GHK-Cu concentration | 1% | 1% | Undisclosed | 3% |
| Concentration on label | ✓ Yes | ✓ Yes | ✕ No | ✓ Yes |
| Cycloastragenol | ✓ 0.5% | ✕ No | ✕ No | ✕ No |
| Hyaluronic acid | ✓ Yes | ✕ No | ✓ Yes | ✕ No |
| Price | €29.95 | €28 | €43–90 | €60–150 |
| Dual-active formula | ✓ Yes | ✕ No | ✕ No | ✕ No |
"Most men think they have a bone structure problem — they don't. It's a skin quality problem. Soft jawlines, lack of definition, acne scarring… it usually comes from low collagen and poor skin regeneration, not genetics. What makes this different is the mechanism: GHK-Cu is a signaling peptide that tells your skin to produce more collagen, repair damage, and tighten from within. That's how you get firmer skin, fewer scars, and a more defined facial structure. Not temporary. Not surface-level. It's about rebuilding the structure from the inside out."
No hidden dosages. Transparent concentrations. Every ingredient has a function.
Signals collagen synthesis, barrier repair, and anti-inflammation
Telomerase activator — targets cellular aging at the DNA level
Binds 1,000x its weight in water for instant deep hydration
Vitamin B3 — brightens, reduces pores, strengthens barrier
Soothes irritated skin, promotes cell regeneration
Our concentration vs. mass market
GHK-Cu — 10–100x above drugstore average
GHK-Cu rebuilds collagen. Cycloastragenol targets telomerase. Together: a dual-active approach to skin aging.
Pickart et al. (2012): GHK-Cu activates over 4,000 human genes involved in tissue remodeling and collagen synthesis.
Harley et al. (2011): Cycloastragenol activates telomerase in human T-cells, supporting cellular longevity pathways.
Finkley et al. (2005): Topical GHK-Cu improved skin density and reduced fine lines in a 12-week study with 67 women.
Layer it first. Let your moisturizer seal it in. Simple.
Start with clean, dry skin
2–3 drops on face, neck, and around the eyes
Pat gently — absorbs in seconds
Follow with CU Tallow or your moisturizer
Real reviews from verified CU Serum users across Europe and the US.
"Two weeks in and the texture of my skin has completely changed. Smoother, plumper, more even. The dual-active formula is no joke — I can feel both the peptides and the hyaluronic acid working."
"I've used NIOD CAIS for years. Switched to CU Serum because of the Cycloastragenol addition. Same copper peptide quality, better formula, half the price. Won't go back."
"Finally a serum that doesn't irritate my sensitive skin. Absorbs in seconds, layers perfectly under my moisturizer. Fine lines around my eyes are noticeably softer after 6 weeks."
"Solid product. The dropper makes dosing easy. Skin feels firmer but I'm only 4 weeks in. Will give it the full 12 weeks before final judgment. Promising so far."
"I was spending £90 on Allies of Skin peptide serum. This does more for a third of the price. The concentration transparency is what convinced me. 1% GHK-Cu — it's right there on the label."
"At 56 I didn't expect much from any skincare anymore. CU Serum proved me wrong. My jawline looks more defined, my skin bounces back when I press it. Real collagen, not marketing."
"As a guy I never had a skincare routine. Started with just this serum. 8 weeks later my barber asked what I changed. Skin looks healthier, fewer red spots, better texture overall."
"The Cycloastragenol sold me — I was already taking it orally. Having it topically too is a game changer. Combined with CU Tallow as the second step, my skin hasn't looked this good since my 30s."
CU Serum — 1% GHK-Cu + 0.5% Cycloastragenol + hyaluronic acid. Transparent concentration. For all skin types. With a 30-day money-back guarantee.
Shop now
