I am in my early forties with extremely sensitive skin. I have to be really careful about the products I use on my face. Many cleansers, even expensive, high quality ones make me break out. I have heard the hype about bentonite clay and thought this might be a safe bet for me. I really am impressed with this formula. Even though there was a slight tingling sensation upon applying it, I moved forward and let it dry completely and then followed the instructions rinsing thoroughly. My skin was noticably tighter after the first application, and ever other time I have applied it. I was skeptical about the chances of this removing/fixing old sun damage but I can honestly say it is fading those spots. I am currently only using the mask 1-2 times a week, before my spray tan application. It makes my self tanner go on evenly and a few friends have mentioned that I look more radiant after my tan application (immediately following the mask). I imagine this bottle will last me a couple of months using it 1-2 times a week. Maybe longer. I will be buying it again. I have been washing my face daily with a homemade mixture of powdered milk and sugar for years (great for sensitive skin) and this mask really refines my pores without irritation. Here is a little more about my skin, just in case you have similar experience. I do not use any foundation type products because of the sensitivity issue. I do, however, use a airbrush spray tan system that I own to maintain an even complexion. Being a teenage sun worshipper, I did plenty of damage to my skin at a young age so now I spray on my tan and use sunscreen. I have had problems with a number of sunscreens, mostly Neutrogena brand. I have had success with olay and most spray products and also many sunscreen formulations I found on Amazon.
Except for sunscreen I do not use any type of moisturizer on my face regularly. And I only use sunscreen when I'm going to be out in the sun for a significant time, so, rarely the last several months. If you have sensitive skin like me, you might really like this mask. I plan on ordering more when I get low.