Lubricants can be divided into 4 categories:

Water-Based-- This is pretty self-explanatory here, water-based lubricants are composed of water and glycerin. They can be sticky and the water tends to evaporate quickly, so make sure you have some extra lube handy.

Silicone-Based-- Most condoms that come already lubricated, use a silicone-based lubricant. This type, like the water-based, is safe to use with all types of condoms, yet won't evaporate like water does. This type of lubricant can be easily cleaned up with soap and water.

Oil-Based-- Note of caution: Oil-based lubricants will destroy latex condoms, thus making them ineffective. DO NOT USE OIL-BASED LUBRICANTS WITH LATEX CONDOMS. Baby oil, lotion, and Vaseline are all types of oil-based lubricants and will eat through latex in no time. These are much slicker than other types of lubricants and will help soften the skin. With the creation of polyurethane condoms, oil-based lubricants have reappeared on the market.

Flavored-- Flavored lubricants are a quick and easy way to spice up your love life. For those people who complain about taste, here is the answer. Flavored lubricants are generally water-based and some contain sugar.