is ghk cu safe for 17 year olds GHK-Cu Peptide Squalane + Copper Peptide (GHK-Cu)

But Im only one person, he said

Without adequate intrinsic factor, only approximately 1% of dietary B12 can be absorbed through passive diffusion , compared to the normal active transport mechanism which is far more efficient

doi:10.1016/j.sjpain.2016.07.004

People taking B12 alone may not get full benefit if co-nutrient levels remain low

However, stimulations of immortalized bovine RECs with various growth factors showed that VEGF-A, but not PlGF, impairs the barrier function of bovine RECs, and that activation of VEGFR2, probably in concert with neuropilin-1, seems to be sufficient to induce barrier dysfunction 40