In February, a woman from Orlando posted this photo and reported, “Each time [I used Wen], I had clumps of hair falling out in my shower, all over my comb and brush… I had so much hair falling out that I got scared and started crying.” In 2009, Los Angeles-based celebrity hair stylist Chaz Dean released Wen, a line of hair-care products that purportedly cleans and conditions without harsh …