From the manufacturer's website:
DESITIN® Maximum Strength Original Paste contains the maximum level of zinc oxide, immediately forming a protective barrier to help heal and soothe diaper rash discomfort. Our thick, rich, hypoallergenic, pediatrician-tested formula provides overnight relief for baby's tender skin. There's no stronger treatment available without a prescription.
Uses:
- Heal and soothe diaper rash discomfort
 - Helps seal out wetness and provide a barrier to protect skin from irritants
 - Creates an optimal environment that allows skin to heal
 
Benefits:
- Contains the maximum level of zinc oxide available without a prescription
 - Creates a rich, thick protective barrier
 - Helps reduce redness and irritation of sensitive skin
 - Provides moisturization and emolliency to the skin
 
*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.