You are allowed to bring a quart-sized bag of liquids, aerosols, gels, creams and pastes in your carry-on bag and through the checkpoint. These are limited to travel-sized containers that are 3.4 ounces (100 milliliters) or less per item.
Why is more than 100ml not allowed?
The 100ml limit was introduced around the world after a transatlantic terrorist plot was foiled in August 2006. A group of individuals planned to detonate liquid explosives on board multiple flights. Since then, many airports ask that all liquids be contained in a clear bag, removed from bags to scan separately.