Unless you're microdosing, 2 mL per vial is a solid rule of thumb
Signs It Is Time to Throw It Out Yes, BAC water can go bad
Notably, the highest dose tested (54 mg) showed increased gastrointestinal event frequency compared to lower doses, suggesting a dose-relationship for this effect category
B Vitamins Can Reduce Body Weight Gain by Increasing Metabolism-related Enzyme Activities in Rats Fed on a High-Fat Diet Supplementation with B vitamins could effectively reduce BW gain and plasma levels of lipids by improving energy metabolism-related enzyme activities in rats, thus possibly providing potential benefits to humans
Heart Health: Vitamin B12, along with other B vitamins, can help decrease homocysteine levels, which are linked to an increased risk of heart disease
These copper ions inhibit type 1 5-alpha reductase by up to 90% in vitro (Sugimoto et al., 1995), reducing local DHT production