Hot roots are primarily caused by the heat emanating from your scalp during the hair dyeing or bleaching process.
Here's a breakdown of the explanation:
- Scalp Heat: Your scalp is naturally warmer than the rest of your hair. This warmth acts as a catalyst, speeding up the lightening or coloring process at the roots.
- Faster Processing: Because of the added heat, the dye or bleach processes faster on the hair closest to your scalp, resulting in a lighter or brighter color at the roots compared to the rest of your hair. This creates the "hot roots" effect.
In simpler terms, the heat from your scalp accelerates the coloring process right at the roots, leading to a noticeable difference in color intensity.
