L’Oreal Professionnel Dulcia Advanced is a long-lasting perm that strengthens the hair and makes it soft to the touch. Provides protection to the hair guaranteed by the presence of Ionène G. Respects the natural elasticity of the hair. Contains "Moisture Lock Complex", a combination of Ionène G and silicone for lasting softness. Reduces the loss of proteins and lipids for maximum respect of the hair during the treatment. No. 0 for very difficult natural hair. Dermatologically tested.