High quality human clinical trials studying the combination are limited, and people with diabetes or kidney disease should be cautious and consult a clinician before starting
Margolina, The Human Tripeptide GHK-Cu in Prevention of Oxidative Stress and Degenerative Conditions of Aging: Implications for Cognitive Health, Hindawi Limited, 2012
These conditions affect how long b12 stays in the body, as individuals may not absorb enough of the vitamin from food or supplements
Next, vitamin C (70 mg) was dissolved in ultrapure water (10 mL)
N E J M, 2007;357(8):753-61
They are not the same molecule, and TB-500 does not inherit thymosin 4s evidence base