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cofactor

the system

the argument

copper builds. shield protects.

Most ranges are a shelf of individual products that happen to share a logo. This one is a protocol.

The copper system is the reason the brand exists. GHK-Cu is a copper tripeptide your skin makes less of as it ages; putting it back is the single best-evidenced thing you can do about firmness and tone that is not a needle. Four products carry it — the blue serum at one percent, the night oil in a lipid phase, the eye serum and the neck cream at half a dose for thinner skin. Nothing under $118 wears the full cupric flood, because the flood means flagship.

The shield system is the other half, and it is not the afterthought it usually is. Three SPF 50s: one for bare mornings, one with iron oxides for tone and visible-light defence, and one you can mist over makeup at one o'clock. Copper builds at night; without the morning, you are rebuilding the same thing every week.

Underneath both sits the routine — cleanse, water, seal — and beside them the weekly specialists. That is the whole architecture. Nothing in it is there to fill a category.

the colour tells you the dose

One cupric blue, stepped down through five dilutions, and every product wears exactly one step. Full cupric is the copper system. The next step down is the non-copper actives and the shields. Then the weekly masks, then the daily routine, and the palest wash is the cleansers. You can read the shelf without reading a word of it.

shop the range
morning

Cleanse, water serum on damp skin, the blue serum, the barrier cream, then the daily spf. Two fingers of it — less is not SPF 50.

night

Balm, jelly, water serum, then your treat for the evening — copper, retinal or bright, never two at once — and the barrier cream to seal it.

weekly

The enzyme mask on a night with no retinal. The rescue mask on the week you owe skin an apology. One resurfacing step at a time.

Help

the layering rules

Three rules cover almost everything. They are printed on every product page as well.

copper

retinals

sunscreen

The shop

the range

Shop all
  • the copper system
    the blue serum
    the blue serum$188Firmer, bouncier, brighter-looking skin in eight weeks. Copper at full dose.
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  • the copper system
    the eye serum
    the eye serum$128Brighter, firmer-looking eyes. The copper hero, built for the thinnest skin you own.
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  • the copper system
    the night oil
    the night oil$148Overnight elasticity. Copper in a lipid phase, for the hours you're off duty.
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  • the copper system
    the neck cream
    the neck cream$132Firms the zone everyone forgets. The copper franchise, below the jawline.
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  • the shield system
    the daily spf
    the daily spf$98SPF 50 you'll actually want to wear. Invisible, weightless, every morning.
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  • the shield system
    the tinted spf
    the tinted spf$98Coverage, visible-light defence, no white cast. Same price as untinted.
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  • the shield system
    the midday spf
    the midday spf$78Reapplication that respects your makeup. The step everybody skips.
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  • treat
    the bright serum
    the bright serum$124Marks, spots and old breakouts, evened out. Tranexamic and azelaic, dosed.
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  • treat
    the night retinal
    the night retinal$108Smoother texture, softer lines, no peeling week. Retinal, one step from retinoic acid.
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  • daily routine
    the water serum
    the water serum$78Plumper skin on contact. The water layer everything after it works through.
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  • daily routine
    the stress mist
    the stress mist$68Rehydrates over makeup, anywhere. For the days your skin is losing.
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  • weekly
    the enzyme mask
    the enzyme mask$88Weekly glow, no recovery day. Pumpkin and papain do the resurfacing.
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  • body
    the body serum
    the body serum$88Face-grade peptides, body-scale. Crepe, texture, and the parts you ignore.
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  • body
    the hand cream
    the hand cream$48Softer, smoother hands. Peptides and ceramides for the parts that work hardest.
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