Discovered 1973 · Rediscovered by You

The molecule
you were born with.

Lost with age.
Restored by BLU°

GHK-Cu — Copper Tripeptide-1. A naturally occurring complex in human plasma that signals the skin to repair, renew, and rebuild. At 0.1% concentration, delivered in a premium Lyocell sheet mask.

Shop the Mask The Science
GHK-Cu Copper Tripeptide-10.1% Active ConcentrationFragrance Free · Paraben Free · Silicone FreePremium Lyocell SheetCeramide NP · Centella Asiatica99.6% Purity · 16-Point COABarrier Repair · Collagen Support · Skin RenewalBiodegradable · Sensitive Skin Approved
The Collection

Choose your ritual.

All products
Best Seller
4-Mask
Collection
GHK-Cu Copper Peptide Repair Mask
$24.99
$6.25 / mask
  • 4 × premium Lyocell sheet masks
  • 25ml serum per mask
  • 0.1% Copper Tripeptide-1 active
  • Fragrance, paraben & silicone free
Add to Cart — $24.99
Best Value
8-Mask
Collection
GHK-Cu Copper Peptide Repair Mask
$35.99
$4.50 / mask
  • 8 × premium Lyocell sheet masks
  • 25ml serum per mask
  • 28% savings vs. 4-pack
  • Fragrance, paraben & silicone free
Add to Cart — $35.99
The Molecule

Science you can feel.

1973
Year of Discovery
GHK-Cu was first isolated from human plasma by Dr. Loren Pickart. It remains one of the most extensively researched tripeptides in dermatology.
0.1 %
Active Concentration
Each BLU° mask delivers a clinically meaningful dose of Copper Tripeptide-1 — the same concentration used in peer-reviewed studies on barrier repair and collagen synthesis.
99.6 %
Verified Purity
Our GHK-Cu is tested to 99.6% purity via a 16-point Certificate of Analysis. Every batch is traceable to source.