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B12 may be injected into a muscle or beneath the skin at 100 mcg every day or alternate days for 7 days, and then every 3 or 4 days for a month
Daily or twice-daily use from day one is a common overreach
Levels drop with age and stress, which is why many people supplement it
So stay tuned
Even experienced copper peptide users benefit from introducing 4% products slowly, perhaps every other day initially, then building to daily use as skin demonstrates consistent positive response without signs of irritation or sensitivity
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