The safest alternative for hair preservation, Safe Rx is a sodium hydroxide formula designed for over porous and/or color-treated hair. Its gentle low-sodium, multi-conditioner makeup keeps the cuticle intact. By breaking fewer chemical bonds at a slower pace, Safe Rx complements porous and damaged hair. This product is for Licensed Professionals Only. To have your order confirm, we must have your professional license on file. You can email your licenses information to newsupplyzone@yahoo.com or please call 314-254-7556. Monday through Saturday 9:00 am to 7:00 pm.