Potassium thioglycolate

Potassium thioglycolate (CAS 34452-51-2), commonly abbreviated as K-TGA, is the potassium salt form of thioglycolic acid used across cosmetic and industrial processing applications. It functions as a reducing agent and keratin-disulfide bond disruptor. This chemical enables the modification of protein-based substrates. Procurement teams source it as a more pH-compatible alternative to ammonium thioglycolate in formulations requiring tighter alkalinity control.

In professional hair depilation and chemical straightening products, K-TGA breaks disulfide bonds in hair keratin to reshape or remove the fiber structure. This makes it a critical component in salon-grade hair treatments. Leather processing operations use it as a depilatory agent to remove hair from hides during the beamhouse stage. This application helps in reducing the industrial reliance on traditional sulfide-based chemistries.

Textile processing applications include wool fiber modification, where controlled reduction of cystine linkages alters shrink resistance and surface texture. It also functions as a chelating agent in specific formulations. The product is utilized where sequestration of metal ions is needed to stabilize the active system. Potassium thioglycolate is supplied as an aqueous solution, with concentration typically ranging around 40–50% active content.

Technical and cosmetic-grade specifications are the most commonly available. Cosmetic-grade material meets purity requirements aligned with personal care manufacturing standards for safety and performance. Bulk liquid supply in drums or IBC containers is the standard commercial format for industrial buyers. This ensures efficient handling and storage for large-scale manufacturing and processing facilities.