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Non-irritating photoprotective composition.

* U.S. Patent No. 7,910,090 B2; Playtex Products, Inc., Westport, CT, has patented a non-irritating, photo-protective cosmetic composition. It is comprised of a water phase with a buffer, an electrolyte, a mild preservative and a lubricant; and one or more sunscreen agents selected from octyl methoxycinnamate, octyl salicylate, homosalate, titanium dioxide and any combinations thereof.

The buffer is selected from sodium acetate, sodium citrate, trisodium citrate, citric acid, sodium bicarbonate, sodium lactate, trisodium phosphate, disodium phosphate, sodium borate, boric acid, calcium fumarate, sodium succinate, tris-maleate and any combinations thereof.

The electrolyte is selected from sodium chloride, potassium chloride, magnesium chloride, disodium EDTA and any combinations thereof.

The mild preservative is selected from esters, phenols, phenoxyethanol, paraben, methyl paraben, butyl paraben, ethyl paraben, propyl paraben, isobutyl paraben, isopropyl paraben, polyquaternium-1, benzalkonium chloride, sorbic acid, potassium sorbate, polyaminopropyl biguani-dine, diazolidinyl urea and any combinations thereof.

The lubricant is selected from polyols, glycerin, propylene glycol, polypropylene glycol, PEG-400, PEG-8 and any combinations thereof.

The photoprotective cosmetic composition is non-irritating to a mammalian eye, and exhibits on a scale of 0 to 3 at least one of a bulbar conjunctiva irritation score of 0.4 or less and a palpebral conjunctiva score of 0.4 or less. The bulbar conjunctiva irritation score and palpebral conjunctiva score are measured 30 seconds after a drop of the photoprotective composition is instilled into the eye of a user.
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Title Annotation:Patent Review
Publication:Household & Personal Products Industry
Date:May 1, 2011
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