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At the cellular level, GHK-Cu signals the body to ramp up production of collagen, elastin, and glycosaminoglycans the structural building blocks of firm, youthful skin
the first lab may measure and report a value of 220 pmol/l, and a different lab may measure and report 380 pmol/l, again in the same blood sample (!) There is day-to-day variation of serum B12
Nausea, vomiting, diarrhea, constipation
TB-500 has essentially none
An incidental-finding cohort from a Spanish university hospital (2023) What was found: among 4,800 people who had a B12 measured, about 7 in 100 had a level above 1000 pg/mL
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