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NG239 Evidence review G: monitoring for gastric cancer in people with vitamin B12 deficiency due to autoimmune gastritis
Discovered in 1973, GHK-Cu is now recognized for its role in skincare and haircare formulations, valued for its protective and restorative properties
Intramuscular injection near an injury site (a common self-administration approach) adds a theoretical local concentration benefit that has some support in animal wound models but has not been tested head-to-head against subcutaneous delivery in a controlled trial
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