I am not sure...but here is some information I found. A consumer warning: this information is from the very site that sells this product (I was unable to locate an unbiased source of information)...
According to their website:
"Ammonium thioglycolate is the main solution used in Japanese Hair Straightening or Thermal Reconditioning. This solution has a lower pH balance than the caustic sodium hydroxide or ammonium thioglycolate found in regular hair straightening products. Calcium hydroxide is also another ingredient used in regular hair straightening. It is not used professionally and is found in home care hair straightening products. Calcium hydroxide leaves the hair cuticle open and the hair feeling dry.
The pH or potential hydrogen, is the measurement for the acid content in a solution. It is usually measured on a scale of 0.0 to 14.0; 0.0 being mild (acid) and 14.0 being corrosive (alkali). 7.0 is the neutral point as in the pH balance of distilled water. The ammonium thioglycolate used in Japanese Hair Straightening or Thermal Reconditioning has a pH balance of below 10.0; the exact figure varies, depending on the quality of the products. Better quality products have a lower percentage of active ingredient and lower pH balance of ammonium thioglycolate. This factor contributes a lot to the pricing of a Japanese Hair Straightening or Thermal Reconditioning service. Other factors considered in a good Japanese Hair Straightening or Thermal Reconditioning treatment include the application of expensive hair oils and proper equipment such as the use of correct thermal irons that can reach temperatures of up to 356 degrees Fahrenheit."
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I am not sure...but here is some information I found. A consumer warning: this information is from the very site that sells this product (I was unable to locate an unbiased source of information)...
According to their website:
"Ammonium thioglycolate is the main solution used in Japanese Hair Straightening or Thermal Reconditioning. This solution has a lower pH balance than the caustic sodium hydroxide or ammonium thioglycolate found in regular hair straightening products. Calcium hydroxide is also another ingredient used in regular hair straightening. It is not used professionally and is found in home care hair straightening products. Calcium hydroxide leaves the hair cuticle open and the hair feeling dry.
The pH or potential hydrogen, is the measurement for the acid content in a solution. It is usually measured on a scale of 0.0 to 14.0; 0.0 being mild (acid) and 14.0 being corrosive (alkali). 7.0 is the neutral point as in the pH balance of distilled water. The ammonium thioglycolate used in Japanese Hair Straightening or Thermal Reconditioning has a pH balance of below 10.0; the exact figure varies, depending on the quality of the products. Better quality products have a lower percentage of active ingredient and lower pH balance of ammonium thioglycolate. This factor contributes a lot to the pricing of a Japanese Hair Straightening or Thermal Reconditioning service. Other factors considered in a good Japanese Hair Straightening or Thermal Reconditioning treatment include the application of expensive hair oils and proper equipment such as the use of correct thermal irons that can reach temperatures of up to 356 degrees Fahrenheit."
January 18, 2009 - 8:14amThis Comment
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