For high quality, long lasting, conditioned curls on fine/limp, soft/delicate and tinted (single processed only) hair types, Creative License is the Ultimate Acid Permanent Wave. Patented Silk Hydra-Bond Complex reinforces the internal strength of hair, creating long lasting curls and maximum elasticity (often lacking in delicate hair types). Activated by dryer heat Ultra conditioning formula protects and moisturizes hair for optimum shine and manageability even on soft delicate hair types