I've used the Formula 10.0.6 Deep Down Detox mud mask, and I would say it's a fine mask. If your skin is sensitive, you might feel a little cooling at first but it will fade within a few minutes. It flattens any bumps and makes skin a bit smoother. Overall it's a good mask, especially for the price.

I've been using natural mud masks for years. It's a nice addition to your regimen, but doesn't do wonders. I usually go with black natural mud, mix it with warm water. Depending on how my skin feels, I might add honey/essential oils/lemon juice/couple drops of oil.

I am using a mask with camphor in it and it the only thing that has reduced breakout of bumps on my forehead. I use it 3 times a week only on my forehead. You leave for 15 minutes and then rinse off with cold water. I guess the ingredient cleans and calms the skin.