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GHK-Cu Trio
The complete daily GHK-Cu copper peptide system. Three minutes morning and night. Save 15% vs. buying individually.
GHK-Cu Balm Stick
Targeted signal delivery — fine lines, texture, problem areas.
GHK-Cu Capsule Cream
GHK-Cu peptide delivery and skin barrier sealing in one step.
The Science Behind the Brand
What is GHK-Cu?
It's the copper peptide your skin uses to stay firm and smooth — and production drops after your twenties. Koppā puts it back at a clinical 2% dose.
Why ours works
- Absorbs deeper — sinks in to work, instead of sitting on top.
- Clean & lightweight — no silicones, no filler, no greasy film.
- Gentle at full strength — calm on skin, even at 2%.
Why it's blue: that's the copper itself, not a dye. If it's not blue, there's no active copper peptide in it.
Real Customers · Verified Reviews
Loved by people who use it every day.
The GHK-Cu 2% Serum is the real deal.
Six weeks in and my aesthetician asked what I changed. The GHK-Cu 2% Serum is the real deal. That says everything.
Skin has completely transformed.
Three products, three minutes. My skin has completely transformed on the GHK-Cu Trio — tighter, more even, way less dull.
Crow's feet visibly softer.
I've been using the GHK-Cu Balm Stick on my forehead lines every morning for 6 weeks. The depth of the lines has visibly reduced — not plumped, actually smoother.
Best skincare investment I've made.
The GHK-Cu Capsule Cream changed the texture of my skin after 5 weeks — smoother, more even, the kind of skin I thought I'd lost in my 40s.
Three minutes — that's the whole thing.
I don't want 12 steps. Balm Stick on my forehead, GHK-Cu Serum everywhere, Capsule Cream to seal it. Three minutes. My skin has never looked better — and I'm 52.
My derm looked it up right there.
My derm asked what I'd changed. Told her about the GHK-Cu 2% Serum. She looked it up right there in the office. 2% GHK-Cu is the real deal.