Copper peptides are short chains of amino acids bound to copper. The one on your label, Copper Tripeptide-1 or GHK-Cu, is a molecule your body produces in higher amounts when you are young, and levels fall with age. That decline is part of why skin loses firmness and takes longer to bounce back.

Applied topically, GHK-Cu signals your skin to support its own collagen and elastin activity, so firmness and elasticity are rebuilt rather than just coated over.

Many brands advertise high GHK-Cu percentages like 5% or 10%, but those figures often refer to the entire raw material solution, which includes water, glycerin, and stabilizing carriers, with only a small fraction being actual GHK-Cu peptide. The real pure peptide content in those products is usually far lower than the headline number suggests.

Peptist uses 2% GHK-Cu. That means 2% of the formula is the isolated, active copper peptide itself, with no dilution from composite raw materials. More active ingredients, less filler.

Five peptides working different jobs. Palmitoyl Tripeptide-1 and Tripeptide-5 cue collagen. Palmitoyl Tetrapeptide-7 helps calm the inflammatory signals that break firmness down. Palmitoyl Pentapeptide-4, better known as Matrixyl, is one of the most studied peptides in skincare for smoothing. Acetyl Hexapeptide-8, or Argireline, softens the look of expression lines.

GHK-Cu leads, and the rest make it a full firming system rather than a single-ingredient bet.

Retinol works by accelerating cell turnover, which is effective but often comes with peeling, redness, and a purge phase. Copper peptides work by signalling repair instead of forcing turnover, so you get firmness and smoothing without the irritation cycle. Many people who cannot tolerate retinol use copper peptides instead.

Different jobs. The infusion kits are a bi weekly deep treatment that carries serums past the skin barrier using micro-needles. This serum is your daily leave-on step, worked over the face and neck to keep collagen support, hydration, and smoothing running between treatments.

They are designed to work together. Most people use the serum daily and the infusion kit bi weekly.

Apply once or twice daily. Dispense a few drops onto clean, dry skin and gently massage over the face and neck until fully absorbed. That is the whole routine.

After cleansing, before moisturizer. Serums go on first so the actives meet skin directly rather than sitting on top of a cream. In the morning, follow with sunscreen.

Retinol, yes, on alternating nights while your skin adjusts. Vitamin C is the one to separate. Direct-acid vitamin C can destabilize copper peptides when layered wet on wet, so run your vitamin C in the morning and this serum at night. Simple timing solves it.

Yes. Your label directs it over the face and neck, and both areas show ageing early, so include the neck every time rather than treating it as optional.

Each bottle is 1 fl oz / 30 ml. Used once daily it lasts roughly two months, or about one month at twice daily.

Most people notice a smoother, more hydrated, plumper finish within the first one to two weeks, which is the hyaluronic acid doing fast work. Firmness and elasticity build over eight to twelve weeks, because that is the pace at which collagen actually rebuilds. Daily consistency matters more than quantity.

It should not. There is no retinoid or exfoliating acid in the formula, so there is no purge phase to push through. A brief tingle on very dry or compromised skin usually settles as your barrier recovers.

The formula is built around well-tolerated actives with no fragrance, no essential oils, no acids, and no retinoids. As with anything new, patch test first. If you are pregnant, nursing, or under a dermatologist's care, check with them before starting.

Yes. There is no acid, retinoid, or photosensitizing ingredient in the formula, so it suits all skin types and tones, including deeper tones where harsher actives can risk uneven pigment. Avoid any area with open or actively irritated skin until it settles.

No. It is a lightweight, water-based gel serum with no oils or silicones, so it absorbs fully and layers cleanly under moisturizer, sunscreen, or makeup.

Yes. Every batch is third-party tested for purity and potency, and the formula is cruelty-free and vegan. Certificates are available on request.