I think you have found false information) This is the first time I hear that cannabis can cause hair loss and I am sure that it is not. I have friends who are bald by the age of 40, who have never even sniffed the smell of marijuana, and vice versa, those who have smoked for years and have luxurious hair. Baldness is more likely to be influenced by heredity, nutrition and hair and scalp care, and tobacco smoking can contribute to this. And as a person who orders dailymarijuana every couple of months, I can say that I do not observe this effect personally.