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A gene profiling study found that GHK modulated expression of 4,048 human genes at a very low concentration of 1 micromolar, with significant upregulation of genes involved in tissue remodeling and anti-inflammatory responses 15

Strongest human evidence (topical) The Leyden 2002 photoaging trial in 71 women applied a GHK-Cu facial cream for 12 weeks and reported measurable improvements in skin density, thickness, fine lines, and laxity

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Drawing a TB-500 Dose Use a new insulin syringe each time you inject

When administered at doses of 0, 0.1, 0.25, and 0.5 ug/mL, growth hormone receptor expression was increased in a dose-dependent manner