No, you don't have to use the complete system everyday.
We usually recommend to use the complete I Max EXCELLENCE Hair Regrowth System for 3-6 months although a lot of customers see immediate results in not losing hair, hair thickness, and manageability. After use for 3-6 months or if you are satisfied with the results, you don’t have to use the complete System every day.
But make sure NOT to use any Hair Shampoo and Conditioner other than I Max Hair System since most brands in the market may cause damage to your hair, follicle or scalp mainly for the unbalanced pH of the products.
You may keep using Serums am, pm and taking Supplements for maintaining the beauty and health of Hair, Follicles and Scalp daily, or every other day, or once or twice a week for maintaining them.