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Those with severe deficiencies may require higher doses of vitamin B12, which can cause side effects including dizziness, headache, anxiety, nausea, and vomiting (Al Amin, 2021)
Side effects are rare when administered properly
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The typical dosage for vitamin B12 injections is 1000 mcg (1 mg)
We found that, regardless of the total dose of rHuEPO used, this substance improves the main hematological (total hemoglobin mass, hemoglobin concentration, and hematocrit) and physiological (maximal oxygen uptake and peak oxygen uptake) parameters, while the maximal performance-related parameters (mainly, maximal power output, and peak power output) also tend to increase
The copper ion itself serves as a cofactor for lysyl oxidase, the enzyme responsible for collagen and elastin cross-linking, meaning GHK-Cu both stimulates production of new structural proteins and ensures they are properly stabilized
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