Advanced peptides. Applied, not injected. Clinical concentrations that actually reach the fibroblasts where collagen is built.
"The gap between 'contains GHK-Cu' and 'uses it at the effective concentration' is everything. That's the transparency pitch."
Stratum StandardMost serums list peptides on the label. Few use them at concentrations shown to do anything meaningful. We built Stratum around one principle: if the research says 0.1–0.5% GHK-Cu is the effective range, that's where we operate.
Our liposome delivery system ensures the peptide reaches the fibroblasts in the upper dermis—the cells responsible for collagen synthesis. Without real delivery technology, most topical peptides are just marketing.
Peptides don't fill wrinkles—they signal cells to repair. Here's the full three-stage process.
The water-based formula is applied post-cleanse. Liposomes encapsulate GHK-Cu and carry it through the stratum corneum into the epidermis—past the barrier that stops most topical actives cold.
Transdermal DeliveryGHK-Cu binds to fibroblast receptors and triggers a signaling cascade. Collagen I, III, and IV synthesis ramps up. Simultaneously, inflammatory cytokines TNF-α and IL-1β are suppressed. Build and calm—at the same time.
Cellular SignalingNew collagen fibers form and mature correctly—copper enables the cross-linking that gives them tensile strength. Skin measurably thickens, firms, and gains elasticity over 8–12 weeks. Not surface plumping. Structural change.
Structural Change · 8–12 weeksWe publish the full formula and explain why each component is here. If we can't justify it, it doesn't make it in.
Signals fibroblasts to ramp up collagen synthesis and suppress inflammatory mediators. The copper binding is essential—it delivers bioavailable copper directly into cells where enzymes need it.
Phospholipid vesicles that encapsulate and protect GHK-Cu during skin transit, then fuse with cell membranes for intracellular delivery. This is why topical concentrations actually work here.
Required by lysyl oxidase enzymes for correct collagen cross-linking. Without adequate bioavailable copper, new collagen fibers form structurally weak and degrade faster than they should.
Formulated within the clinically validated GHK-Cu concentration range. Applied first after cleansing, before moisturizer—maximising the absorption window fibroblasts actually respond to.
Effective skincare shouldn't require a twelve-step routine. Stratum integrates in two minutes—morning and evening.
Every pass of the blade disrupts the skin barrier, triggers micro-inflammation, and depletes the collagen that gives skin its structure. It's cumulative damage most men never think to address.
Stratum GHK-Cu Serum repairs what shaving breaks down—restoring collagen synthesis and barrier integrity so skin gets measurably stronger each week, not thinner.
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