GHK-Cu influences the expression of over 4,000 human genes, representing roughly 31.2% of the entire human genome
For example, hypervitaminosis A can be caused by taking one large dose of over 200 mg of vitamin A, or chronic use of more than 10 times the recommended daily intake ( Vitamin A toxicity may lead to serious complications, such as increased spinal fluid pressure, coma, and potentially fatal organ damage ( Additionally, taking megadoses of vitamin D more than 50,000 IU daily over long periods can lead to high blood levels of calcium (hypercalcemia), which can lead to death ( Overdosing on other vitamins can likewise cause potentially fatal side effects, such as liver damage
Decreasing overall body fat can lead to improved metabolic health, including better blood pressure, cholesterol levels, and blood sugar control
These might include additive, synergistic, or antagonistic effects that cannot be reliably predicted without dedicated pharmacokinetic and pharmacodynamic studies