I just started using 5%Minoxidil topical solution ( 3 weeks now). My hair is brown on top and has been thinning over the last couple of years. Since using Minoxidil, I have noticed that my hair is turning very light and almost blond where I have applied the Minoxidil. Is this normal? Is this part of the shedding phase? The rest of my hair is dark brown and it looks like I’m using a hair lightener and my hair is two tones of color. Any suggestions on keeping my hair color the same without dying it? Will the new hairs come back brown? Thx.