Desitin® Maximum Strength Original Paste is a high-potency diaper rash treatment formulated for both prevention and healing. The active ingredient is 40% zinc oxide, which is the maximum allowable concentration in over-the-counter skin protectants, providing a thick barrier to seal out wetness and irritants. Its rich, ointment-like texture allows it to adhere to skin surfaces, offering prolonged protection and relief. In clinical studies, 90% of diaper rash cases showed noticeable relief within 12 hours of use. Desitin’s formula is hypoallergenic, paraben- and phthalate-free, and tested by pediatricians. The paste can also double as a preventive barrier when applied before extended wear of diapers. Be aware: it may stain textiles due to its richness. Frequently Asked Questions (FAQs) What is the active ingredient? Zinc oxide 40%, a skin protectant. What does it do? It treats and helps prevent diaper rash by forming a barrier and soothing irritated skin. Is it safe for daily use? Yes, its hypoallergenic formula is designed for frequent use. How long does it protect? It is clinically shown to provide protection up to 12 hours. Does it contain parabens or phthalates? No—it is free of parabens, phthalates, and dyes. Can it stain clothes? Yes, due to its thick, rich formulation. How do I apply it? Cleanse and dry the diaper area; apply liberally at each diaper change, especially before extended wear. Are there precautions or warnings? For external use only; avoid eye contact; discontinue use if condition worsens or persists longer than 7 days; keep out of reach of children.