It's a common misconception that cutting hair makes it darker. Hair color is determined by melanin, a pigment produced in the hair follicle. Cutting hair only removes the outer layers, not changing the pigment itself. However, a haircut can sometimes *make* hair appear darker due to:
* Removal of dry, lightened ends: Regular trimming eliminates split ends, which tend to be lighter and more porous than healthy hair.
* Increased shine: A fresh cut can create smoother hair cuticles, reflecting light more effectively and making the hair appear darker.
Ultimately, cutting hair doesn't change the underlying pigment, but it can make it appear different by influencing the way light reflects off the hair strands.