Pay in 4 interest-free payments of $5.12 Learn more
Ships within 48 hours · Estimated delivery Aug 28 - Sep 2
In cultured human keratinocytes exposed to UVB radiation (a standard oxidative stress model), pre-treatment with 10 nM GHK-Cu resulted in: 2.8-fold increase in glutathione reductase mRNA (the enzyme regenerating reduced glutathione from its oxidized form) 2.3-fold increase in catalase expression (HO decomposition) 1.9-fold increase in ferritin heavy chain (sequestering iron, another Fenton-active metal) 62% reduction in 8-hydroxy-2-deoxyguanosine (8-OHdG) levels, a DNA oxidative damage marker The protective effect disappeared when using copper-free GHK or copper chloride alone, confirming the intact peptide-copper complex is required
It also prevented changes in the shape of dendrites of nerve cells that lead to learning deficits (Veinbergs et al., 2000) and increased the density of neuroreceptors in the hippocampus of rats with neurological injury (Sayyahi et al., 2018)
The most efficient method would be to email [email protected] with your order number and return request in the subject of the email
Other WeightWatchers programs you can access with Core+ The Diabetes Program The Breastfeeding Support Program How much does WeightWatchers Core+ cost
Common Side Effects Most side effects are temporary and mild
