Cleansing agent that's potentially drying, particularly when itŠ—Ès the primary cleansing ingredient where the concentration is likely to exceed 10.5%. This cleansing agent is used far less often than ammonium or sodium sulfates or their derivatives. TEA-lauryl sulfate may be plant-derived or synthetic.
References for this information:
Encyclopedia of Shampoo Ingredients, Micelle Press, 1998, pages 392-393.
International Journal of Toxicology, July 1982, pages 143-167