Too much oxidative stress might lead to fewer pigment-producing cells in hair and cause hair to lose color, based on lab studies that simulate this stress in human hair follicles.

As we age, damage from oxidative stress can harm the cells that give hair its color, especially because the body’s natural antioxidants weaken over time — this leads to grey hair.

Too much stress from oxygen-related chemicals in your hair roots might damage the cells that give hair its color, leading to gray hair — especially when stuff like hydrogen peroxide builds up and harms those color-making cells.

When your hair grows fast, it might stress the cells that give hair its color, causing them to wear out faster and turn hair gray sooner.

When the energy factories inside hair follicles don't work right, they make too many harmful molecules that damage the color-producing cells, making hair turn gray faster.

Your hair color depends on special stem cells in your hair roots, and long-term stress from inflammation or oxidation can mess them up, making them disappear or mature too soon.