Using clay on the scalp is aimed at freshening the roots and reducing the heavy feeling from oil and product buildup. For this purpose, you'll want a mixture that is thinner than a typical body mask—think a creamy, pourable consistency, similar to a runny yogurt. This allows it to be applied directly to the scalp skin through your hair. You can mix the powder with water, or for added soothing properties, use aloe vera gel or a simple, alcohol-free toner.
To apply, part your hair in sections. Using an applicator bottle with a narrow tip or simply your fingers, dispense the paste along the part and gently massage it into the scalp with your fingertips. Focus on the areas that feel oiliest or itchiest. You do not need to coat the lengths of your hair. Leave it on for 5-10 minutes; it should not dry completely. The mild physical action helps loosen debris, while the clay's absorbent texture draws out excess sebum. Rinse exceptionally thoroughly under warm water, massaging the scalp as you rinse to ensure no gritty particles remain. Follow with your regular shampoo and conditioner routine. This can be a useful step before a clarifying shampoo for a deeper cleanse.