How often should I use a clay mask, considering the myriad of skin types and conditions that exist? Is there a universal frequency that applies, or does it vary significantly depending on individual skin needs? For instance, should those with oily or acne-prone skin indulge more often in these detoxifying treatments, while others with drier complexions proceed with caution? What signs should I look for that indicate my skin is responding positively or negatively to the clay mask? Might environmental factors, such as humidity or pollution levels, also influence the appropriate frequency of application? Additionally, could the formulation of the clay mask itself—whether it contains additional exfoliating agents or nourishing components—play a pivotal role in determining how often I should apply it? In an era of diverse skincare regimens, how can I ascertain the optimal balance that ensures my skin remains radiant and healthy, without overindulging?