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quote:Originally posted by DoctorBeaver[:0] Look what I found at that link... Long-term exposure to anionic surfactants has been linked to swelling of the skin in a conditioned allergic reaction. This swelling is temporary, although it tends to increase the susceptibility of the skin to permeation by other substances. Anionic surfactants are generally avoided in cosmetic products, but their use in shampoos and other products can still lead to irritation (that's why some people suggest changing shampoos every month or so).
Started by tkadm30Board Chemistry