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A syringe with 0.1mL graduations makes this easier to measure accurately than trying to use an insulin syringe with its smaller volume markings
If dosing accuracy is your top priority and you do not mind slightly larger injection volumes, the 4mL option eliminates guesswork entirely
However, niacinamide at physiological doses (like those in prenatal vitamins or moderate supplements) is not known to be harmful
The process begins with a brief consultation to confirm the injection is appropriate for your health needs
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