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
For a low maintenance style, try to work with your natural hair type rather than against it. For example, if your hair is naturally wavy, select a hairstyle that works easily with the waves.