Highlights Active ingredients: Mineral oil and white petrolatum Preservative-free 3.5g (0.12 fl oz) tube Rebecca's description Which ointment to choose? There are lots of ointments on the market, and they're all made of the same stuff mostly - white petrolatum and mineral oil. The main thing that distinguishes one product from another is the proportions of those two ingredients. Genteal and Systane ointments are mostly white petrolatum (94%) and only 3% mineral oil. For plenty of people the differences may not matter, but certainly I've noticed some over the years who find that the differences matter for their purposes, so comparison shopping can be helpful. Should I be using ointment at all? Ointments are attractive for overnight use due to their staying power - unlike polymer drops and gel drops, they don't just dissolve and dissipate in a short time. However, not everyone who has moderate to severe overnight dry eye symptoms therefore has to use an ointment. Many people can get by with a less viscous (not to mention non-greasy!) lubricant, such as a polymer gel or even gel drop, if they also use some kind of night protection (shield, mask, goggle, etc.). Manufacturer's description GenTeal Night-time PM ointment provides long-lasting relief for night-time comfort. Drug Facts (from manufacturer's site): Active Ingredients / Purpose Mineral Oil 3% / Lubricant White Petrolatum 94% / Lubricant Uses for use as a lubricant to prevent further irritation to relieve dryness of the eye. Warnings For external use only Do not use if you are sensitive to any ingredient in this product When using this product do not touch tip of container to any surface replace cap after using Stop use and ask a doctor if you experience any of the following feel eye pain changes in vision continued redness or irritation of the eyes condition worsens or persists for more than 72 hours Keep out of reach of children. If swallowed, get medical help or contact a Poison Control Center right away. Directions pull down the lower lid of the affected eye and apply a small amount (one-fourth inch) of ointment to the inside of the eyelid. Other information Store at 8°-27°C (46°-80°F). Inactive Ingredients Anhydrous Liquid Lanolin Questions? In the U.S., call 1-800-757-9195.www.systane.com