Different molecule, potentially different GI response
Oral GHK-Cu dosing research considers bioavailability differently than injectable research, because oral administration involves gastrointestinal processing before systemic distribution
Ensuring your cat receives enough vitamin B12 is critical to maintaining their health and wellbeing, especially in younger cats and those with certain health conditions
One is usually seen as more targeted, the other as more systemic, so using both is meant to cover more recovery pathways
In the U.S., zinc deficiency is unusual, as most people receive sufficient zinc from foods as varied as meat, fish, fortified cereals, beans, eggs, nuts, and dairy products
It will ensure theres enough B12 in the blood to replenish the cells and tissues around the clock, and cure the deficiency