Deficiency is common in those with fatigue, brain fog, or nutrient absorption issues, especially individuals with gastrointestinal conditions, vegans and vegetarians, or those taking medications like metformin or proton-pump inhibitors
Regenerative and protective actions of the GHK-Cu peptide
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Todays most popular peptides like AOD 9604, BPC 157, MOTS-c, Ipamorelin, Tesamorelin, Sermorelin, and friends have become so popular it seems Amazon just couldnt resist selling them
Folic acid has also been shown to decrease vitamin B12 levels as well
If you are using a 20mg vial at a 2mg weekly dose and will need 10 weeks to consume it, reconstitute only half the vial and store the remaining powder in the freezer until you need it