ghk-cu: GHK-CU – Research Peptide Cu Repairing Serum comes in a pack (3 x 10ml bottles) GHK‑Cu Copper Peptide Therapy |

While maintaining the same purity as Ultra X, the Glutathione content in Ultra 9X has been upgraded from 34.22% (111.2mg) to 40.54% (135mg)

Topical serums lack the mechanical ability to contract tissue

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Huang, C.S., et al., Catalytic and regulatory properties of the heavy subunit of rat kidney gamma-glutamylcysteine synthetase

2003 Jul 1;333(1):19-39

Transcriptomic analysis of cells treated with arsenic, cadmium, and mercury 1321N1 cells were seeded in six-well plates in DMEM complete medium