A chemical ingredient used in some hair relaxing and/or straigtening products that is designed to break the protein bonds that provide human hair with its natural texture. Ammonium Thioglycolate is often called "thio". It is the active chemical ingredient that is also found in chemical waving treatments.
Daily Hair Tip
After you have removed hot rollers from you hair let the curls set for a minute. Use fingers or pick to carefully arrange curls so they don't droop.