ghk-cu bulk Skin Perfection Copper Peptides Powder for Face 99.7% Pure 1 Gram GHK-CU for Sale | Tripeptide-1
Description
PMID 8492341

Intrinsic factor is a protein which is vital in the absorption of B12

2013;19(1):76 to 83

In the UK, vitamin B12 levels below 150 pmol/L are usually considered deficient and typically require treatment

At 10 mg/mL, you get the best of both worlds
