i did not notice a difference, but many people started telling me my hair looked darker, and they did not know i was on finasteride or minoxidil. in fact, i'm not sure if i had started minoxidil yet. i had not noticed the darkening, but everyone said it looked a lot better. when my first hair transplant surgeon looked at my hair before i was on finasteride, he just quickly and without a care told me that all the hair in front of my head was going to go, siting the light color as his evidence. i had not noticed the color change before then. it was too faint for me to really tell. but remembering back, I now recognise that it is a lot darker. all of my hair looks better.