+22 Regrowth Hair Treatment Ideas. Protecting your hair the type of treatment your doctor prescribes will depend on the cause of hair loss. It'll take at least six months of treatment to prevent further hair loss and to start hair regrowth.

With some conditions, such as patchy hair loss (alopecia areata), hair may regrow without treatment within a year. Web michael andrade/stocksy hair loss can’t always be prevented and can be caused by either genetics or the environment. Test the health of your hair.