Pay in 4 interest-free payments of $5.39 Learn more
Ships within 48 hours · Estimated delivery Sep 2 - Sep 7
The copper ion itself serves as a cofactor for lysyl oxidase, the enzyme responsible for collagen and elastin cross-linking, meaning GHK-Cu both stimulates production of new structural proteins and ensures they are properly stabilized
People who are at a high risk of B12 deficiency, such as those who eat strict vegetarian diets, should talk to their healthcare professional about screening for this condition
none of the compounds have been studied for continuous use
The histidine residue in the middle does most of the work
US$ 28.51
US$ 28.12
US$ 28.97
US$ 25.73
US$ 27.89
