By contrast, most vitamin B12 supplements come in 600 mcg doses, which is 25,000% of the daily requirement
Tung C, Varzideh F, Farroni E, Mone P, Kansakar U, Jankauskas SS, et al
A collection of brightening ingredients includes Glutathione, Alpha Lipoic Acid, Vitamin C, Niacinamide, Tranexamic Acid, Alpha-Arbutin, and Bisabolol may help fade away dark spots and leave the skin clear and bright
The form, dose, and timing are worth recording, and further workup becomes necessary if the elevation persists once those sources are accounted for, or if symptoms, examination findings, or other labs raise concern