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The fundamental problem with the research peptide market is not that all the compounds are definitively ineffective
Breastfeeding Cyanocobalamin is excreted in the breast milk of nursing women in levels similar to the level of vitamin B12 in maternal plasma (18)
GHK-Cu is available for purchase in Canada through peptide research suppliers
Li W, et al
The risk of Vitamin B12 toxicity is low with proper guidance
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