What does a reforming lotion do in a perm?

A reforming lotion in a perm process helps to reshape the hair's bonds, allowing it to take on a new curl pattern. It typically contains chemicals that break down the hair's internal structure, making it pliable for styling. After application, the hair is often wrapped around rods or curlers, and the lotion helps to set the new shape. Ultimately, it contributes to achieving defined, long-lasting curls or waves.