Why is the hairbrush greasy

I've noticed that my hairbrush often feels greasy even after washing it, and it got me curious about the actual causes behind this. The primary reason is the natural oils produced by our scalp, called sebum, which can transfer from the hair to the brush over time. If you use styling products like gels, mousses, or oils regularly, they also tend to accumulate on the brush, making it greasy and sticky. Additionally, dust, sweat, and dead skin cells can stick to the bristles, contributing to the buildup. It's more common to experience this if you don't clean your brush frequently enough. From my experience, cleaning the hairbrush every one to two weeks works well. I soak my brush in warm water mixed with a gentle shampoo or baking soda to break down residues. Using an old toothbrush to scrub between the bristles helps remove stubborn grime. A greasy brush not only feels unpleasant but can also lead to hair looking oily faster because the oils redistribute when you brush. So, regular cleaning keeps your hairbrush fresh and promotes a healthier scalp environment. Also, if you tend to have very oily or product-heavy hair, switching to brushes with synthetic bristles or those designed to reduce oil buildup can be helpful alternatives.