At the beginning of the routine, when hair is dry, fragile, and lacking nourishment, use the treatments every day or every other day for 1 month, depending on your hair's needs.
Once the hair has regained more nourishment, suppleness, and strength, gradually space out the treatments to every 3 to 4 days to maintain the results.
Intensive phase: every day to every other day for 1 month.
Maintenance phase: every 3 to 4 days.