What is the typical processing time for a standard perm?

The typical processing time for a standard perm is generally around 15 to 30 minutes. During this timeframe, the perm solution is allowed to penetrate the hair cuticle, breaking down the disulfide bonds in the hair structure. This process is crucial for reshaping the hair into curls or waves, as the solution needs sufficient time to effectively alter the hair's natural texture.

It is important that the stylist monitors the hair during this period to achieve the desired curl pattern while avoiding over-processing, which can lead to damage.

Longer processing times may not be necessary or optimal for most standard perms, and shorter processing times won't allow the solution enough time to work effectively. Hence, the choice reflecting 15 to 30 minutes accurately represents the common practice in the beauty industry for standard perming techniques.