Which type of perm is generally more flexible in styling?

The most flexible type of perm in styling is acid perms. Acid perms are formulated with a lower pH compared to alkaline perms, resulting in a gentler solution that penetrates the hair cuticle with less swelling. This quality allows for greater control during the perming process, making it easier to create soft, natural-looking curls and waves.

Acid perms also tend to produce a more elastic and resilient curl structure, which enhances the hair's ability to be styled in various ways after the perming process. This flexibility is particularly advantageous for clients with color-treated or damaged hair, as the gentler formulation reduces the risk of additional damage while still allowing for versatile styling options.

In contrast, alkaline perms are stronger and create firmer curls, making them less adaptable for varying styles. Exothermic perms rely on a heat-generating reaction to process the hair, and while they offer a different type of styling flexibility, they can be less forgiving for finer hair types. Spiral perms create defined curls in a specific pattern, which may restrict styling options compared to the softer, more versatile look achieved with acid perms.