PeriGuard ointment is a petrolatum-based barrier ointment with zinc and vitamins A, D, and E, leaving skin feeling soft and supple. No heavy residue—it goes on clear and removes easily even from sensitive skin. DermaRite PeriGuard Skin Protectant Ointment creates a moisture barrier that provides a natural layer that both protects and heals the skin. It helps prevent and treat diaper rash by keeping urine, sweat, and fecal matter off from your skin. It also aids in reducing any friction caused by rubbing. The PeriGuard contains health-promoting zinc-oxide and vitamins A, D, and E, which help nourish the skin's cells. These cells, protected from moisture, are more resistant to breaking down. The nutrient-enriched environment helps your skin repair itself faster as well. Consisting of nearly 50% petroleum jelly, the ointment spreads smoothly and with ease so you can cover the desired area with little effort. It won't wash or rub off, giving you adequate coverage for an extended time. This skin protectant is even gentle on sensitive skin and does not cause further or additional irritation when used. The outer layer of your skin is naturally slightly acid. It helps protect your body from pathogens (harmful germs and bacteria). When moisture sits on the surface of your skin, it can cause a break in this protective exterior. Not only that, but urine is a base, which can cause your skin to lose its acidity. Enzymes in fecal matter speed up the breakdown of the surface. By providing a moisture barrier, the product helps the acidity be where it should be, protecting the surface of your skin. That, in turn, prevents intruders from gaining entry. And that helps maintain your comfort.