No, dirty hair does not grow slower. Hair growth is primarily determined by factors like genetics, nutrition, and overall health. While dirt and product buildup can appear to slow down growth by making hair look dull and lifeless, it doesn't actually affect the rate at which your hair grows.
Here's why:
- Hair growth occurs at the follicle: The hair follicle, located beneath the scalp, is responsible for producing new hair. Dirt and grime on the surface of your hair do not affect this process.
- Dirt can make hair appear thinner: Buildup of dirt, oil, and product residue can weigh down hair, making it appear thinner and less voluminous. This can create the illusion of slower growth, but it's merely a visual effect.
- Clean hair appears healthier: Regularly washing your hair removes dirt, excess oil, and product buildup, allowing your hair to appear shinier, smoother, and healthier. This can make it look like your hair is growing faster because it appears more vibrant and healthy.
In conclusion, while dirty hair might not look like it's growing as fast, the actual rate of hair growth is not affected.
