seriously questioning whether this is a genuine product [SEP] i have been using paul mitchell tea tree lemon sage thickening shampoo and conditioner for a couple of years it has always performed as expected and made my thin fine hair more manageable and a little fuller feeling the last time i ordered it however it did not perform or even smell the same as previous purchases my hair did not feel clean after shampooing or more manageable in fact by day two it looked a little greasy i subsequently developed dermatitis around my hairline and down my neck to the point where i had to consult a dermatologist she suggested it could be my shampoo and told me to stop using this product my dermatitis went away and after about a month i tried using the paul mitchell tea tree lemon sage shampoo and conditioner again my dermatitis returned almost immediately while i suppose i could have developed an allergy to a product i have been using for a couple of years i question whether this product sold on amazon is genuine i will not order any more cosmetic products from amazon due to their self admitted counterfeit problem caveat emptor