Balayage is gentler on all hair types than other, more conventional methods of lightening the hair, particularly curly-haired ladies who risk their curl patterns by going lighter. Your hair has to lift more quickly because no heat is retained inside any foils, which can occasionally harm hair if over-processed.
No matter what porosity you have, the hair won't get harmed with the right technique and formula. Naturally, oily hair is ideal for balayage since it prevents your highlights from looking