The pH level of an alkaline perm typically ranges between which values?

The pH level of an alkaline perm typically ranges between 9 and 9.6. Alkaline perms are designed to be more effective on coarse, resistant hair types, as the higher pH helps to swell the hair cuticle and allows for better penetration of the perm solution.

In this context, the high pH of 9 to 9.6 is crucial for breaking down the disulfide bonds in the hair during the perming process, facilitating the restructuring of the hair into waves or curls. This level of alkalinity is specifically formulated to ensure optimal performance of the product while also maintaining hair integrity as much as possible.

Lower pH levels suggested in the other choices do not provide the necessary strength or effectiveness for an alkaline perm, as they would not create the same degree of swelling and bonding alteration required for this particular styling method.