Direct Dosage: A single B12 injection often delivers a much higher dose directly into the system than a typical daily oral tablet, particularly when considering the limited absorption rate of the latter, contributing to their perceived and actual strength. However, for individuals with mild dietary deficiencies and no underlying absorption problems, high-dose oral B12 supplements (e.g., 1000-2000mcg daily) can sometimes overcome the need for intrinsic factor by allowing for a small amount of passive absorption, eventually raising levels, though this method is less predictable and slower than direct injection
Moreover, glucuronidation activity was also detected in other tissues such as kidney (Sutherland et al., 1993), brain (King et al.,1999), or placenta (Collier et al., 2002)
Using Both Together: Potential Synergistic Benefits While each product works very well on its own, some patients and providers choose to use GHK-Cu topical alongside a tretinoin/niacinamide formulation for complementary effects
In turn, we found that elevated ROS activated poly (ADP-ribose) polymerase (PARP), a DNA repair enzyme, consuming large amounts of cellular NAD+ as its cofactor
