Figure 1: Changes in blood serum biochemical detection of mice in the aged group and in the group treated with FOXO4-DRI
The safety margin is over 300 times the therapeutic dose, making GHK-Cu one of the safest peptides available for research use
Users typically see fine line improvement earliest in their copper peptide journey, often within the first four to six weeks of consistent use
however, it is highly recommended to conduct a patch test prior to regular application of skincare products.[4] Users should discontinue use if they experience any signs of allergic reactions, such as redness, hives, or itchiness.[5] While copper can potentially cause skin irritation or toxicity, in vitro studies suggest that GHK-Cu complexes may have a lower likelihood of inducing these effects.[6] However, it is always recommended to consult a healthcare professional before using any new skincare product
About the Author Maryke Louw is a chartered physiotherapist with more than 20 years' experience and a Masters Degree in Sports Injury Management
Selected batches are independently tested by Janoshik Analytical for purity verification, with reports published on the product page where available