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Description
GHK-Cu Copper peptide for skin regeneration and collagen research

only the first amino acid differs ( glycine in GHK-Cu vs alanine in AHK-Cu)
For those who are deficient, it may be necessary to supplement the diet with B12

Vitamin B12 shots and vitamin B12 injections are the same treatmentboth terms refer to the direct intramuscular administration of vitamin B12 for rapid absorption and immediate wellness benefits