When you buy through our links, we may earn money from our affiliate partners. Learn more. Aztec Secret I've tried a lot of face masks in my life — from dirt-cheap impulse purchases to $80 award-winning at-home facials — and nothing has improved the clarity of my skin like this giant $8 tub of the Aztec Secret Clay Mask.After seeing it all over the internet and having a colleague call it her "most recommended product," I gave it a shot.It basically acts like a vacuum for your pores in the five to 20 minutes it's on.