White Labs WLN400 Clarity Ferm, 10ml

Clarity Ferm, from White Labs, helps eliminates chill haze and Clarity-Ferm significantly reduces the gluten content in beers made with barley and wheat. A Clarity-Ferm treated beer made from barley or wheat usually tests below 20 ppm of gluten, the current international standard for gluten free. 

ClarityFerm also works very well and quickly as a clarifying agent. We added some to the fermenter of a Scottish ale we made, and the beer was fermented out, clear, and ready to be kegged in 7 days. So if you need a beer fast for a party coming up, add some Clarity Ferm!

Other commonly used clarifiers for homebrew are Isinglass and Super-Kleer.