Like I said in my review of the counterpart conditioner, this duo is the worst thing I have ever received in my Birchbox. Here are just a few reasons I severely dislike this shampoo: Do NOT use if you have colored hair, as Sodium Laureth Sulfate (the dreaded SLS) is the second ingredient...that will strip your color faster than you can say "this stuff smells like vomit"...well actually, it smells like the stuff that they would put on vomit when you were in elementary school. Yes, you know EXACTLY what I'm talking about. Contrary to what the name of the product would lead you to believe, there is no lavender or peppermint essential oils listed in the ingredients. There is the dubious linalool...but there is also Wheat Gluten. ??? In any case, this dried out my normal-straight hair and the conditioner made it feel even worse. After blow-drying I had a frizz halo. Can't recommend.