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
When towel drying wet hair never rub hair roughly or twist up into a towel. This will potentially damage delicate hair cuticles. Instead carefully blot hair with superabsortant towel and squeeze hair gently to remove moisture.