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That is intentional: the two vial sizes reflect two different documented protocols and two different concentration setups, and it is a reminder never to eyeball a dose across vial sizes
It's used in creams and serums, not injections, mainly for anti-aging skincare and hair thinning
How It Works This injection contains Mecobalamin, an active form of Vitamin B12
BUY 4 Combo - Vitamin B12 2000mcg + B100 B-Complex SKU SAVE $9.59 off list price Order Qty
Adding too little water creates overly concentrated solutions where small measurement errors translate to large dose variations
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