* Perms alter the hair's structure: A perm uses chemicals to break and reform the disulfide bonds in your hair, giving it a new curl pattern.
* Heat weakens the bonds: The heat from a flat iron can weaken or even break the newly reformed disulfide bonds that create the perm's curls.
* Loss of curl: This weakening leads to the perm losing its curl definition and becoming frizzy, limp, or straight in places.
* Damage: Repeated flat ironing on permed hair can also lead to dryness, breakage, and overall damage.
In summary, flat ironing is essentially working against the chemical process of the perm, undoing the curls and causing damage.
If you want to occasionally straighten your permed hair:
* Use a low heat setting: If you must use a flat iron, use the lowest heat setting possible.
* Use a heat protectant: Apply a generous amount of heat protectant spray to help shield your hair from damage.
* Limit frequency: Don't flat iron your hair often. Frequent straightening will significantly reduce the lifespan of your perm.
* Deep condition: Regularly deep condition your hair to help replenish moisture and repair any damage.
It's best to avoid flat ironing permed hair altogether if you want to maintain the curl pattern.