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Problem: Redness and Irritation Mild redness immediately after application can be normal, especially with higher concentrations
Common, mild side effects: Pain, redness, or itching at the injection site Mild nausea or diarrhea Headache Temporary dizziness Rare but more serious reactions: Allergic reactions (rash, swelling, breathing difficulty) Heart palpitations Low potassium levels during rapid correction of severe deficiency Very rare cases of anaphylaxis requiring emergency care Seek medical attention immediately if you experience symptoms of a serious allergic reaction
Clinical studies consistently show GHK-Cu to be well-tolerated across skin types
Weekly B12 shots are safe for most people, especially during the initial treatment phase for deficiencies
Mediators Inflammation (2016) 2016:9626427
