This is why vitamin B12 is prescription and not over-the-counter
GHK-Cu is supplied to qualified research professionals for in vitro laboratory study
By making your maintenance plan fit your needs and watching your health closely, doctors can make B12 therapy work its best for you
News, Medical and Life Sciences, Obesity drug codenamed AOD 9604 highly successful in trials, 16 December 2004
[33] As another example, after we established C1748 as a device category code effective July 1, 2020, we updated the list of procedure codes (HCPCS codes 43260 through 43265 and HCPCS codes 43274, 43276 through 43278) associated with HCPCS code C1748 in 2022 to include transnasal services (HCPCS codes 0652T, 0653T, 0654T, 43197, and 43198)
This does not make it the most effective, which remains debated, but it does make it among the best characterized for safety