Some shedding when beginning to use Revita shampoo is completely normal and common. While it does not happen to everyone and the results of Revita are different depending on severity of hair loss, etc, some shedding may occur within the first month of use.
Once the shedding stops, you should notice a significant decrease in hair loss and should note hair growth.
Revita typically starts showing results within 90 days of use as directed.
Is Hair Shedding Common When Starting to Use DS Laboratories Products? - YouTube