Make sure you shake up the product before use each time! There's product (I assume it's the 'volcanic cluster') at the bottom that doesn't dissolve into the toner itself. Don't be afraid of that though, I have sensitive skin and I've not felt anything harmful from such, nor have I developed any pimples/acne. This product does what it says and leaves my pores feeling tight and clean. It removes excess dead skin on my face as well, which I find some higher end products don't even do for me. Am a great fan, though will not be purchasing again because I personally don't prefer the feel it leaves on my skin- a tad bit squeaky. I'll stick with my Mario Badesceu Glycolic Acid toner, but would recommend this product if you're looking for something gentle and pore refining that is good at removing dead skin or residue leftover for cleansing!
TLDR; Good for pores, gentle and removing skin residue.