For combination or oil-prone facial skin, once or twice a week is a typical cadence. If you notice persistent tightness, flaking, or increased sensitivity, drop to once every 10–14 days. The sweet almond oil and glycerin help, but clay is still a physical absorbent — frequent use can reduce surface lipids below what your barrier needs.
On the scalp, use it as a pre-shampoo treatment when roots feel heavy or look flat by midday. Once a week is a good starting point; if you wash hair daily, you might use it every other wash. Apply only to the scalp, not the lengths, to avoid drying the ends.
On the body, limit to once a week on targeted areas (back, chest, shoulders) before exfoliation or moisturising. Avoid using on the same day as strong chemical exfoliants (AHAs/BHAs) or retinoids — alternate days to prevent barrier stress.
A practical rule: if your skin feels "squeaky" or uncomfortable more than an hour after rinsing and moisturising, you are using it too often. Scale back and observe. Seasonal changes matter too — you may tolerate twice a week in humid summer but only once in dry winter heating.