Sunscreen compositions having synergistic combination of UV filters

a technology of sunscreen and composition, applied in the field of sunscreen composition, can solve the problems of skin cancer, loss of cell permeability, and serious conditions, and achieve the effects of excellent sun protection factor, low amount of sunscreen, and low uv filter
US20160374915A1Active Publication Date: 2016-12-29LOREAL SA
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
LOREAL SA
Publication Date
2016-12-29
Patent Text Reader

Abstract

The disclosure relates to sunscreen compositions having a synergistic combination of ultraviolet light (UV) filtering agents that provide a high sun protection factor (SPF). Compositions according to the disclosure have high SPF values without requiring high total amounts of UV filtering agents. Furthermore, the disclosure relates to methods of using the described compositions for protecting keratinous substances such as skin and hair from UV radiation.
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Description

FIELD OF THE DISCLOSURE

[0001] The present disclosure relates to sunscreen compositions comprising a synergistic combination of ultra violet (“UV”) filters, and to methods of using the combination of UV filters to protect keratinous substrates such as skin and hair from UV radiation.BACKGROUND

[0002] The negative effects of exposure to ultraviolet (“UV”) light are well-known. Prolonged exposure to sunlight causes damage such as sunburn to the skin and dries out hair making it brittle. When skin is exposed to UV light having a wavelength of from about 290 nm to about 400 nm, long term damage can lead to serious conditions such as skin cancer.

[0003] UV light also contributes to aging by causing free radicals to form in the skin. Free radicals include, for example, singlet oxygen, hydroxyl radical, the superoxide anion, nitric oxide and hydrogen radicals. Free radicals attack DNA, membrane lipids and proteins, generating carbon radicals. These in turn react with oxygen to produce a peroxyl ...

Claims

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