How should I incorporate this tinted shampoo into my regular hair care routine?

Treat this tinted shampoo as a periodic colour‑maintenance step rather than a daily cleanser. On the day you want to refresh the tone, wet your hair thoroughly, apply the product evenly from roots to ends (or only on the areas needing colour), and massage gently to create a light lather. Leave it on for the duration stated on the package — usually between 3 and 10 minutes — then rinse with cool or lukewarm water until the water runs clear. Follow with a regular conditioner or a keratin‑enriched mask to replenish moisture and enhance the smoothing effect of the keratin. Because the pigments coat the cuticle, using the shampoo too frequently (more than once a week) can lead to a gradual buildup that makes the colour look flat or overly dark. On non‑tint days, use your usual sulphate‑free or colour‑safe shampoo to preserve the deposited tone. Avoid clarifying shampoos, hot water, and excessive heat styling immediately after application, as these accelerate fading. The keratin in the formula provides temporary cosmetic smoothness and shine, but it does not replace a dedicated deep‑conditioning treatment for damaged hair.