Moisturizing and conditioning perming liquid for difficult to curl hair. SensiPerm 0 strength is designed for difficult to curl hair. Unscented and vegan. Developed and produced in Finland. SensiPerm is a line of perming products designed for professional use, which allows you to create soft, natural ooking and vibrant curls. The curling liquid reshapes the sulfur bonds in the hair, while strengthening the hair structure and repairing and preventing damage to the hair cuticle. When chemical curls are done without unnecessarily stressing the condition of the hair, the end result is curls that not only look good, but also feel natural and soft.