Brush → shampoo twice → Collagen Pro Spray → conditioner + oil → style. Between shampoos: Collagen Spray first, then Sea Salt Spray.
Now, the reason the order matters. You brush first because brushing brings the dirt and debris up off the scalp where the shampoo can reach it. You shampoo twice because the first one lifts what the brushing loosened and only gives you a low lather; the second one foams properly and takes the rest. We shampoo the scalp. We don't shampoo the hair: the hair is cleansed as the shampoo runs down and through it, carrying the dirt and debris with it.
Then the Collagen Pro Spray goes on the wet hair, all over, lifting as you go. It preps the hair. The conditioner and the strengthening oil go on together after it, in the palm, over the Pro Spray, and they stay in. Leave-in, not rinse-out. Comb through to disperse, and do not squeeze all the water out first, because the water is what carries the product through the hair.
Between shampoos, the Collagen Spray goes on first, then the Sea Salt Spray over it. The collagen puts the balance back; the salt manages oil at the scalp and stabilizes the collagen down into the hair. That pair, in that order, is what buys 3 to 4 days between shampoos.
The styling sprays come last. Pick by the need: Firming is the firmest, Shaping is the one you can shape with, and Holding is the lightest: the finishing pass over whatever you already used. Use them before the style, after it, or both. Let it dry before you shape. Hold the bottle 8 to 12 inches off the scalp.
Restore, not repair. There is no such thing as repairing hair. You restore it to a percentage of its natural condition, and then the client maintains it at home.