Original in mild, normal and resistant concentrations (sodium hydroxide). Fluffy, base-free formulations. Effectively straightens by chemically changing one third of hair's cystine crosslinks to lanthionine crosslinks. Taste resistant Step 2 Contains fiber strengthening complex (FSC).
This description highlights the different concentrations of sodium hydroxide available in the product, as well as its mild, base-free formulations. She explains how the product effectively smoothes hair by modifying its chemical structure, while emphasizing its resistance. In addition, it mentions the presence of a fiber strengthening complex (FSC) to strengthen the hair.