Review title is Missing one item [SEP] This arrived without the 8 . I used the 0 and 3 together and could tell a difference, used the 4 and 5  (shampoo and conditioner) the next time I shampooed. Wanted to use those separate so I could see which product was doing what.  The 0 and 3 I “think” helped, the 4 and 5 left my hair feeling amazing. Can’t tell you anything about 8 because it was missing 😣