This helped me through a headcold that turned to bronchitis. It became severe quickly due to a genetic lung disease, which causes me to be unable to adequately battle lung infections. I have had heavy hair loss for many years, multiple autoimmune issues triggers by viruses exacerbate the hair loss. That hair loss stopped while taking MegaViron. I thought it was possibly due to the zinc, so I began supplementing with chelated zinc and my hair is still shedding 200-300 strands daily. I don’t know why, but MegaViron stops my hair loss. I’ve tried biotin, B-12, K, and other vitamins/minerals, none helped with hair loss like MegaViron has done. I’m ordering more and supplementing daily with 1/3 strength dosage to experiment with lessening hair shedding.