How long do I leave on a clay green algae mask on for? The duration for leaving on a clay green Algae mask can vary depending on the specific product and your skin type. However, as a general guideline, it's recommended to leave the mask on for about 10 to 15 minutes. Avoid leaving it on for too long, as it could potentially dry out your skin or cause irritation. Always follow the instructions provided with the product and consider doing a patch test before applying it to your entire face, especially if you have sensitive skin. https://www.moonstarsworld.in/