The risk of laser hair removal scars with laser or light source hair removal is quite rare
Symptoms of severe vitamin B12 deficiency can include visual disturbances, severe joint pain, paresthesia (tingling in the hands and feet), memory problems, depression, anxiety, poor muscle function, ataxia (impaired balance and coordination), changes in reflexes and even infertility
Tkalcevi VI, Cuzi S, Brajsa K, et al
Materials are not intended for human or animal use, diagnostic use, or therapeutic use
Chem Biol 15:234245 Wewer M, Bittker JA, Lewis TA, Shimada K, Yang WS, MacPherson L et al (2012) Development of small-molecule probes that selectively kill cells induced to express mutant RAS