Storage and Stability GHK-Cu is unstable in solution and sensitive to pH, preservatives, and heat
Contact a doctor of optometry immediately if you notice: Sudden, painless vision loss in one eye Missing or dark areas in your vision, especially in the upper or lower half Blurred or cloudy vision Changes in color vision, such as colors appearing faded or washed out Some changes in the eye, such as swelling of the optic nerve or tiny areas of bleeding, can only be detected during a dilated eye exam
Monitor for any new side effects that emerge at the higher dose
The richest natural sources include: Meat and poultry : Beef, lamb, pork, and chicken, particularly organ meats like liver and kidneys Fish and seafood : Salmon, trout, tuna, sardines, and shellfish such as clams and mussels Dairy products : Milk, cheese, and yoghurt provide moderate amounts of B12 Eggs : Particularly the yolk, which contains B12 in readily absorbable form For individuals following plant-based diets, fortified foods are essential sources of B12
BonDurant L, Potthoff M (2018) Fibroblast Growth Factor 21: A Versatile Regulator of Metabolic Homeostasis
