The best time to remove a clay mask is when it has partially dried but not fully hardened. Typically, this is when the mask starts to lighten in color and feels slightly tacky to the touch, usually around 10 to 15 minutes. If the mask is left on for too long and fully dries, it can start to pull moisture from your skin, leading to dryness and irritation. Once you’ve removed the mask, you can apply a good facial oil like prickly pear seed oil, as the pores will absorb the active ingredients even