Zinc Oxide Safety and Efficacy

Topical Use

The British Association of Dermatologists notes insufficient evidence to formally recommend zinc oxide for warts, though it may be used in practice 1
For sun protection in cancer patients, zinc oxide-containing sunscreens are recommended as hypoallergenic options with high SPF by the European Society for Medical Oncology 2
Zinc oxide is recommended specifically for sensitive skin due to its hypoallergenic properties by the European Society for Medical Oncology 2
No specific contraindications for topical zinc oxide use in immunocompromised patients, according to the European Society for Medical Oncology 2

Maintaining appropriate zinc-to-copper ratios is essential to prevent secondary copper deficiency, as recommended by the National Institutes of Health 3
Standard therapeutic dose of 15 mg daily for adults is well-tolerated, according to the National Institutes of Health 4
Organic zinc compounds show better tolerability than inorganic forms, as reported by the National Institutes of Health 4
For confirmed deficiency, doses of 0.5-1 mg/kg per day for 3-4 months are appropriate, according to the National Institutes of Health 4
Monitor for copper deficiency with prolonged supplementation, especially at higher doses, as recommended by the National Institutes of Health 3, 4