Can you lose or damage the hair if using a hairbrush that hasen’t been cleaned for a long time?
Have you heard the old saying that cleanliness is next to godliness? Are you asking if you can damage your hair using a brush that has been in the drawer for a long time and then used on your hair without the brush being cleaned? Well, the answer is probably not. The question I’d wonder might be how old the brush really is and how long it has been since you used it last.