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Reputable medical organizations note that high doses of vitamins delivered intravenously can cause kidney damage, heart rhythm abnormalities, and blood pressure changes, and that most nutrients can be obtained safely through diet and oral supplements
Why GHK-Cu Dosage Depends on the Administration Route GHK-Cu dosing differs fundamentally between systemic injectable research and topical research
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Individual Case Reports A 2024 case study published in The Parker Journal of Health Science described a woman who developed anxiety, palpitations, acne, and insomnia after taking 1,000 mcg of cyanocobalamin daily for 12 days
Pharmaceutical Research (1999) 7
**If you are very sensitive in the eye area, begin only using this product very sparingly every other day or so
