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1KA Steel Shield is a hair treatment based on glyoxylic acid, a mix of ten amino acids and essential oils. It does not use formaldehyde or any of its derivatives. It has a unique and revolutionary technology that treats and rejuvenates the hair while providing a natural straightening.
1KA Steel Shield is compatible with any chemical treatment made previously, such as coloring, bleaching, Keratin, Guanidine, Ammonia, Lithium and Sodium.