According to the Talk Sex with Sue Johanson website, baby oil is not safe to use as a lubricant because it has an oil base and will destroy condoms. Baby oil can also increase the risk of vaginal yeast infections.
Talk Sex with Sue Johanson encourages the use of either water-based or silicone lubricants. Water-based lubricants are easy to clean up and do not cause damage to either condoms or sex toys. Silicone lubricants are typically the more expensive of the two and are notable for lasting longer than water-based lubricants. However, they can melt sex toys made of silicone and are thicker than water-based lubricants. Those prone to yeast infections should avoid lubricants with added glycerin, which may aggravate the condition.