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It is not recommended for individuals with known allergies to its components, or for those with chronic asthma, unless approved by a physician
investigational only
Seal It In With a Rich Moisturizer After your GHK-Cu serum has absorbed (510 minutes), apply a ceramide-rich night cream to create an occlusive seal
Severe adverse events reported include allergic reactions, kidney damage, and potential increases in skin cancer risk (e.g., melanoma), especially from unregulated products
Healthy individuals with normal B12 levels and intact absorption do not benefit from injections, and routine use for 'energy boosting' is not supported by clinical evidence or NHS guidelines
Proc Natl Acad Sci USA.1984;81:9359
