Here's why:
* Clean hair straightens better: Dirt, oil, and product buildup can make your hair harder to straighten and require more heat, which can lead to damage.
* Reduces damage: Straightening dirty hair can essentially "bake" the impurities onto the hair shaft, making it more difficult to remove and potentially causing damage.
* Better results: Clean hair is smoother and more receptive to styling, leading to a sleeker, longer-lasting straight style.
Important Considerations:
* Use a heat protectant: Always apply a heat protectant spray to your hair before straightening, regardless of whether it's clean or dirty.
* Ensure hair is dry: Never straighten wet hair, as this can cause severe damage. Hair should be completely dry before straightening.
So, while I don't personally straighten my hair, I can definitively say that the best practice is to wash your hair beforehand for optimal results and to minimize potential damage.