Conclusion: Although GHK-Cu and Pal-GHK are effective and relatively skin permeable, their permeability could be successfully increased using permeation enhancement methodologies
With an oral supplement, the B12 needs to be absorbed through your digestive system first before getting to your blood, which takes a lot longer
combine with rest and proper nutrition
Other ways to raise your B12 If injections are not right for you, there are other options: oral B12 tablets or sublingual drops, more B12-rich foods like fish, eggs, and fortified cereals, or a full weight loss program that combines nutrition, activity, and medical oversight
[A] blistering novel
2005;28(3):397419 discussion68