Patent Picks—Polyester UV Filter, Diol Filters and Sensory in Sun; Milk Thistle, Buddha Fruit, Artichoke, Olive, Algae, Narcissus Skin Repair

Patent Picks are compiled by the editors from publicly available sources. This edition features inventions related to sun protection and skin repair, including isononyl benzoate for sensory properties; alpha,beta-dihydroxyketone UV filters; assessing extrinsic skin age; an artichoke/olive anti-aging duo; milk thistle and Buddha fruit cleanse/repair combo; algae and Narcissus to stimulate collagen; UV-absorbing polyester and more.

Isononyl benzoate to improve sunscreen sensory properties
U.S. Patent 9011826
Publication date: April 21, 2015
Assignee: Evonik Degussa GmbH

This invention relates to the use of isononyl benzoate for the preparation of a cosmetic, dermatological or pharmaceutical formulation. According to the inventors, isononyl benzoate imparts good sensorial and solution properties for active substances, in particular organic UV filters. Specifically discussed is a method for preparing a formulation including adding at least one material containing an unbranched or branched C9-alkyl radical to at least one component selected from ingredient types such as: emollient, emulsifier, surfactant, thickener, viscosity regulator, stabilizer, UV filter, antioxidant and more.

UV filters based on alpha,beta-dihydroxyketones
European Patent EP2121611
Publication date: April 15, 2015
Assignee: DSM IP Assets

The present invention relates to novel diol compounds, cosmetic or dermatological sunscreens containing them, and their use for photo-protecting skin and/or hair against UV radiation. Said UV filter compounds have high UV activity, good compatibility with skin, and low to no penetration—yet also have excellent adhesion to skin. According to the inventors, these chemical structures can easily be coupled to a chemical group of the formula R-C(O)-CH(OH)-CH(OH)- for such adhesion without incurring negative effects.

Assessing extrinsic skin age
U.S. Patent 9013567
Publication date: April 21, 2015
Assignee: Courage and Khazaka Electronic GmbH

Disclosed in this patent is a device and method for determining the extrinsic age, rather than chronological age, of skin, ultimately for the development and recommendation of specific skin treatments. The process comprises: a) optoelectronically capturing an area of skin using a digital camera having a cross-polarization unit; b) storing the image obtained in a buffer; and c) processing the image by means of a microprocessor-controlled image processing unit (mBVE). The mBVE isolates the B channel of an RGB image and calculates a grayscale value image in a first step, then establishes a mean grayscale value and buffers it as a “color” parameter in a second step. It then calculates a standard deviation and buffers it as an “evenness” parameter in a third step. Following a-c, the age of the skin is calculated using: d) a color/age-dependence correlation formula (FAF); and e) an evenness/age-dependence formula (EAF). Lastly, f) a value for the age of the skin is output to recommend a product.

Artichoke and olive anti-aging
U.S. Patent 9005674
Publication date: April 14, 2015
Assignee: The Procter & Gamble Co.

This patent discloses a method for improving the appearance of aging skin by applying an effective amount of artichoke leaf extract and olive oil extract in combination to a target area of skin. The combination surprisingly has been found to provide a synergistic benefit to improve the appearance of skin.

Substantive sunscreen formulation
U.S. Patent 9005588
Publication date: April 14, 2015
Assignee: Mary Kay Inc.

Described herein is a substantive emulsion comprising 40% to 45% w/w of water; 25% to 30% w/w of a combination of octocrylene, avobenzone, octisalate, homosalate and oxybenzone; and 3% to 5% w/w of a combination of VP eicosene copolymer, acrylates/C12-22 alkyl methacrylate copolymer, trimethylsiloxysilicate and acrylates/dimethicone copolymer. Said emulsion provides an SPF of at least 50 and is very water-resistant.

Milk thistle and Buddha fruit cleansing/repair
U.S. Patent Application 20150099018
Publication date: April 9, 2015
Inventors: T. Florence, M. Hines, D. Gan and B. Durkee

Disclosed in this patent is a topical skin cleanser comprising Silybum marianum (milk thistle) fruit extract, Momordica grosvenorii (Buddha fruit) fruit extract, and a vehicle comprising at least 50% w/w of the composition: water, disodium EDTA, glycerin, phenoxyethanol, triethanolamine, 3-iodo-2-propynyl butyl carbamate, and benzyl alcohol. The inventors discuss the use of this composition to treat skin conditions ranging from fine lines or wrinkles, to uneven skin tone, loose or saggy skin, erythemic skin, sensitive skin, dry and itchy skin, sun damaged skin, dermatitis, sunburn and more.

Algae and Narcissus collagen active
U.S. Patent Application 20150098963
Publication date: April 9, 2015
Assignee: N.A. Pernodet and D.F. Collins

This invention relates to a method for stimulating collagen synthesis by topically applying a composition comprising at least one Laminaria algae genus extract, at least one Narcissus genus extract, and at least one peptide or a yeast extract that stimulates SIRT-6 activity.

UV-absorbing polyester
U.S. Patent Application 20150098916
Publication date: April 9, 2015
Assignee: Johnson & Johnson Consumer Companies, Inc.

Disclosed herein are compositions including an oil phase emulsified in a continuous water phase, the oil phase of which includes a UV-absorbing polyester in an amount effective to provide an SPF of 10 or greater. Said polyester is the polymerization reaction product of monomers including a UV-absorbing triazole, a diester, a diol and a tetrol polyol. Also incorporated are an anionic o/w emulsifier, and a nonionic o/w emulsifier having an alcohol functional group, wherein the weight ratio of the anionic emulsifier to the nonionic emulsifier is ~2 or less, and where the composition is substantially free of a non-polymeric UV-absorbing sunscreen agent and will have an SPF < 2 in the absence of the UV-absorbing polyester.

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