The lemon scent in this is not astringent at all, it's happy inducing so by it [SEP] Okay not gonna lie, this particular duo was not the one that I wanted. It was available though so I took a chance because the only other option was the tea tree with lavender and I absolutely hate lavender. First it arrived 6 days before the delivery estimate which is amazing! Next I had to try it * cringe * I was really worried that I was going to use it in my hair with smell like comet or some other type of astringent cleanser. I was wrong! The shampoo did a very good job cleaning my scalp, and the conditioner did exactly what I wanted it to. I can't speak on the thickening side of the advertisement but I can tell you that the scent of this shampoo and conditioner duo made me happy. Yes like really really daisy sunflower lemon squares lemon meringue happy. I am a convert, I will be ordering this duo from here on out ... now I am going to go wash my hair