Here's why:
* Cleanliness: Washing removes dirt, oil, and product build-up that can prevent the heat from distributing evenly and potentially damage your hair.
* Moisture: Washing allows you to condition your hair, which helps protect it from heat damage.
* Style: Straighteners work best on clean, dry hair, as wet hair can cause steam and uneven styling.
However, there are some exceptions:
* If your hair is already very dry: Washing your hair before straightening can make it more prone to damage. Consider using a leave-in conditioner or a hair oil to add moisture.
* If you're using a heat protectant spray: Some sprays are designed to be applied to slightly damp hair.
Ultimately, the best approach is to do what works best for your hair type and style. Experiment to find what works best for you.
Remember: Always use a heat protectant spray before straightening to minimize damage.