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Abstract
Sunscreen must provide protection against solar radiation and be safe and non-irritating to skin and eyes, especially for children. A unique water-in-oil emulsion sunscreen formula with a sun protection factor of 50 (SPF50) was developed that minimizes irritation potential through careful selection of ingredients, active combinations, preservatives, and the absence of fragrance. The SPF50 sunscreen formulation reported here is non-irritating to the skin or eyes, with an estimated Draize ocular score of 0.0 for lotion and 3.6 for spray lotion formulations. No eyelid inflammation, lacrimation, or palpebral or bulbar conjunctival irritation was observed in human eye instillation studies. This sunscreen provides a new tear-free formulation that protects from ultraviolet radiation.