or intramuscularly, 1 injection at a time, 1-2 times a week, with 1 box able to be used 7 times (this one doesn't have to be very frequent to see results, but if you really want to be white, you can do it often) When you're satisfied with the whiteness, gradually reduce to 1 per month
Tanaka K, Tokunaga S, Kono S, Tokudome S, Akamatsu T, Moriyamad T, Zakoujid H (1998)
Candidates for B-12 injections typically include individuals with a vitamin B-12 deficiency, those with certain medical conditions (like pernicious anemia or gastrointestinal disorders), vegetarians or vegans who may not get enough from their diet, or people experiencing fatigue and memory issues potentially linked to low B-12 levels
Thawing the solution does not restore activity
The lack of B12 halts the methylation cycle, which leads to a buildup of toxic homocysteine
Most evidence comes from lab and animal research so far, human studies are still limited