* Moisture and Heat Damage: When your hair is wet, the cuticles are open and more vulnerable. Applying the high heat of a flat iron to wet or even damp hair can cause the water inside the hair shaft to boil and create steam. This can lead to breakage, bubbles in the hair shaft, and overall weakening of the hair structure.
* Uneven Straightening: Damp hair doesn't straighten as effectively. You'll likely have to go over the same sections multiple times, increasing the heat exposure and potential damage.
* Frizz and Reversion: Even if you blow-dry your hair after washing, a small amount of moisture may remain. That residual moisture can lead to frizz and cause your hair to revert back to its natural texture more quickly after straightening.
Better Practice:
1. Wash and Condition: Wash your hair a day or two before flat ironing. This gives your hair time to dry completely and for the natural oils to redistribute.
2. Apply Heat Protectant: Always, always use a heat protectant spray before using any heat styling tools. This creates a barrier between the hair and the heat, minimizing damage.
3. Blow Dry (If Needed): If you want extra smoothness, blow-dry your hair thoroughly before straightening.
4. Ensure Hair is Completely Dry: Before using the flat iron, make absolutely sure your hair is 100% dry.
In short: Avoid flat ironing wet or damp hair to prevent damage. Always prioritize completely dry hair and heat protection.