I am not sure, but I just bought trader joes ttt shampoo. It has a harsh sulfate in it, but its in the last half of ingredients. I don't know if it would be strong enough or not, but it would likely be more gentle than the shampoos that have the 2nd ingredient a harsh sulfate. Still a newbie, so keep that in mind
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2c, some straight pieces on canopy, curlier underneath. Fine, thin, unsure on porosity - sent in my sample and waiting to hear back. Products - have a bunch I am trying out, CJ, Deva, SM Yucca, TJ.