When it comes to purchasing the best flat iron for straightening your hair, you get what you pay for. The cheaper the flat iron you purchase, the less consistent the heat through the plates will be. Every time you close the flat iron around your hair, the temperature will fluctuate; the bigger the fluctuation, the more passes you will have to make over the hair.
Invest in flat irons that have an adjustable digital temperature for total control. Protect your hair by lowering the temperature and holding your hair on the iron for a shorter period. These adjustable flat irons allow you to use a higher setting on thick hair, and a lower setting on fine locks.
If you have colored hair, the cuticles are more open, and the hair's internal strands are more exposed. This means your hair can be flat iron quickly and doesn't need high heat to be tamed and straightened.
Use this guideline when setting the temperature on your flat irons:
- Fine, chemically treated or damaged hair: 300° or less
- Healthy hair with a medium texture: 300-380°
- Coarse, curly or thick hair: 350-400°
- To avoid damage, never flat iron any hair type above 450°