250mcg equals 10 units on a U-100 insulin syringe, assuming a 5mg vial reconstituted with 2mL of BAC water
May improve mood and symptoms of depression - Vitamin B12 is needed for the production of serotonin, a chemical responsible for regulating mood
It also affects at least 12 genes linked to immune system function
It is a necessity for the formation of red blood cells, the sustenance of a healthy nervous system, and the synthesis of DNA
In weeks 4-6 , users may notice improved skin health , as well as the effects of reduced oxidative stress
Research in humans is a bit less impressive Clinical trials in humans A 1981 double-blind study found that chronic insomniac patients found that subjects slept 59% more, shorter sleep latency, and higher sleep efficiency (Schneider 1981) A 1987 double-blind study did not find any statistically significant changes in sleep structure as measured by REM sleep, NREM sleep, or total sleep time (Debellis 1987) A 1992 double-blind study in 14 chronic insomnia patients found higher sleep efficiency and subjectively estimated tiredness decreased to similar levels of healthy subjects in 7 nights of injections (Schneider 1992) There are some limitations to these studies however
