Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Works for a heavy shedding lab

We have a Black Lab mix, who sheds like crazy every season change. The shampoo and conditioner work great. I'd suggest getting a hair trap for the tub though, the amount of hair she drops is insane (and bad for the pipes). The shampoo also made her coat so soft and silky - we got a lot of comments on that. Disadvantage, she seems to have more dander when using this.Rinse very, very well and don't use shampoo more than 2x a month, or there seems to be a lot of dander. Brush with some normal brush first, THEN use the razer comb when the fur is dry. Using the razer comb repeatedly after a single wash will also cause a bit of dandruf.