17 results about "Photoprotection" patented technology

The invention discloses application of rice protein MBS and a coding gene thereof in plant light protection. The invention provides any one of the following applications of the protein OsMBS. C1, regulating and controlling the plant yield; c2, regulating and controlling light protection of the plants; c3, regulating and controlling the strong light adaptability of the plants; c4, regulating and controlling the photosynthetic activity of the plants; and C5, cultivating a strong light resistant plant. Transgenosis experiments and field yield measurement verify that the homologous protein OsMBS has enhanced expression in rice, the chloroplast is wrapped in a sharp increase mode under strong light, a shading layer for directly protecting the chloroplast is formed, light protection of the rice fragrance of the rice can be enhanced, and remarkable and efficient yield increase in the field is achieved.

The application discloses a multifunctional biomaterial with light protection and repair functions, which comprises the following components in percentage by mass: 4-8% of methacrylated gelatin, 0.5-2% of nanomicelles of ferulic acid, 0.5-1% of adhesive peptides, 0.5-1.5% of hyaluronic acid and 0.5-1% of ekdromicin. The application further discloses a preparation method of the multifunctional biomaterial and application thereof. The multifunctional biomaterial realizes a trinity synergistic effect of 'protection-repair-regeneration', target enrichment of active ingredients to damaged parts, and can stimulate vascular regeneration, improve skin microcirculation, has antioxidant, anti-inflammatory and healing functions, and promotes repair of light-damaged skin.

According to the present invention, light filters are disclosed that provide photoprotection and contain fluorescent agents in that have fluorescence emission in the near infrared region of wavelengths to effect photobiological modulation (PBM) of human cells when the cells are exposed to sunlight or any artificial lighting. The fluorescent agents include endogenous compounds. The light filters include ophthalmic lenses, skin care products with or without transparent substrate and any products that are used to filter light. When used in connection with ophthalmic lenses, the ophthalmic lense provides photoprotection and photobiological modulation to the human eye.

The application discloses a kind of polypeptide, polypeptide extraction and purification method with river toad as raw material and application thereof, belong to the field of bioactive peptide, its amino acid sequence is FPGGPGAK, and preparation method and application in the field of cosmetics are also disclosed.The polypeptide disclosed in the application, polypeptide extraction and purification method with river toad as raw material and application thereof are extracted, purified and screened by treating river toad skin, and the central peptide segment playing a photoprotection role is used in cosmetics.

The invention discloses a novel application of sargassum horneri polysaccharide in preparation of a product for preventing or repairing skin photoaging and endogenous DNA damage caused by ultraviolet rays. Experimental research shows that the sargassum horneri polysaccharide provided by the invention can reduce UV-induced oxidative stress and ROS accumulation, reduce cell apoptosis and cycle arrest and relieve UV-induced DNA double-chain fracture damage, so that the dual effects of ultraviolet radiation protection and DNA damage repair are achieved, the defect that an existing sunscreen product only can perform passive protection is overcome, and the problem that the existing sunscreen product only can perform passive protection is solved. And the defect that the DNA damage cannot be repaired by the existing repair product is overcome. The sargassum horneri polysaccharide is clear in physical and chemical characteristics, stable in activity, derived from natural sargassum horneri, free of irritation of chemical synthesis components, excellent in biocompatibility, suitable for being used for a long time in cosmetics and drugs, capable of providing safe and effective natural raw materials for daily skin photoprotection and capable of protecting skin photoprotection. New treatment thoughts and product choices can be provided for clinical prevention and treatment of skin light injury, and the market application prospect is wide.

In some aspects, the disclosure relates to a composition including niacinamide and polypodium leucotomos extract, optionally with additional photoprotective ingredients including ascorbic acid, optionally biotin, astaxanthin, bovine collagen peptides, L-glutathione, hyaluronic acid, and inositol. The composition provides rapid and measurable photoprotection, reducing UV-induced erythema by approximately 60-68% when administered 1-2 hours prior to UV exposure. Clinical studies demonstrate significant increases in minimal erythema dose (MED) with effects persisting for at least 24 hours following a single oral administration. The composition exhibits excellent formulation characteristics including superior mixability, clarity, and palatability when formulated as a beverage powder.

The invention relates to a composite film-forming composition for photoprotection and application thereof. The composite film-forming composition is prepared from the following components in parts by weight: 10 to 30 parts of poly C10-30 alkanol acrylate, 5 to 15 parts of polymethylsilsesquioxane, 5 to 10 parts of dextrin palmitate, 2 to 10 parts of fructus schisandrae chinensis extract and 5 to 12.5 parts of tuber melanosporum extract. When the composition is applied to a sunscreen product, the use amount of the emulsifier can be obviously reduced, and meanwhile, the persistence and the effect of the sunscreen power can be improved.

The present invention relates to sunscreen products, cosmetic and pharmaceutical preparations or homecare products having UVA and / or UVB protection comprising an organic UV-filter and a certain mycosporine-like amino acid compound. The products and preparations provide improved SPF performance and UVA photoprotection. In addition, the products and preparations according to the present invention provide broad-spectrum photo-protection from UV radiation. Additionally, the present invention relates to the use of such mycosporine-like amino acid compound for boosting SPF and UVA photoprotection of a sunscreen product, cosmetic or pharmaceutical preparation or homecare product comprising an organic UV-filter. Furthermore, the present invention relates to a method of enhancing the SPF and UVA photoprotection of a sunscreen product, cosmetic or pharmaceutical preparation or homecare product comprising an organic UV-filter by the addition of a certain mycosporine-like amino acid compound. Finally, the present invention relates to a method for providing anti-aging benefits to skin, whitening or preventing darkening of skin, improving the appearance of skin, diminishing the visible signs of skin aging and improving skin's radiance and firmness by topically applying the sunscreen product or cosmetic or pharmaceutical preparation according to the present invention to the skin.

This invention provides a cerium oxide-containing composite sunscreen raw material and its preparation method, belonging to the field of materials technology. The invention involves synthesizing a cerium oxide-containing composite oxide via a co-precipitation method, then using gelatin-chitosan as a wall material to encapsulate the composite oxide. A stable coating layer is formed through cross-linking and curing, reducing the photocatalytic activity of cerium oxide and improving dispersion stability. This invention significantly reduces the potential toxicity of traditional chemical sunscreens to the human body, while expanding the photoprotection range to the visible light region, achieving "full-spectrum" (200-800 nm) protection.

The present invention relates to a method of assessing photoprotection efficacy of a personal care composition comprising a skin care active; and to a method of comparatively assessing photoprotection efficacy of two or more personal care compositions comprising a skin care active.

This invention relates to a photoprotective, whitening, and repairing composition suitable for sensitive skin and its application. The composition comprises the following components: oxidized resveratrol nanocrystals, gardenia extract, oat β-glucan, and Lactobacillus fermentation product, wherein the weight ratio of the oxidized resveratrol nanocrystals, gardenia extract, oat β-glucan, and Lactobacillus fermentation product is (0.01-6):(0.01-0.5):(0.01-2):(0.1-10). This invention, through the combination of multi-target components, overcomes the efficacy limitations of traditional photoprotective, whitening, and repairing products. This invention provides a highly efficient and safe solution for photoprotection, repair, and whitening of sensitive skin, possessing significant application value and market potential.

The invention discloses a photoprotective composition and a preparation method thereof. The photoprotection composition is mainly prepared from a rhodiola rosea (RHODIOLA ROSEA) root extract and a medicago sativa (MEDICALO SATIVA) extract, and is characterized in that the photoprotection composition is prepared from the following components: a rhodiola rosea (RHODIOLA ROSEA) root extract Rhodiola rosea roots and medicago sativa are selected to be combined, a modern fermentation extraction technology is adopted to prepare the photoprotection composition, tests find that the photoprotection composition can recover cell viability reduction caused by UVA irradiation, and the endogenous photoprotection effect is achieved.

The invention discloses a photoprotection synergistic composition containing a camellia japonica extract as well as a preparation method and application of the photoprotection synergistic composition. The photoprotection synergistic composition containing the red camellia extract comprises the following components in percentage by mass: 0.1-10% of an amino acid derivative cell stress protective agent, 0.1-10% of a photoprotection synergistic agent, 0.1-10% of an antioxidant and the balance of a solvent. 0.1 to 20% of barrier repairing polysaccharide; 0.01 to 2% of a soothing anti-inflammatory plant extract; 0.01-2% of a licorice derivative; 0.1 to 30% of a water-soluble camellia japonica extract; 0.1 to 30% of an oil-soluble camellia japonica extract; and the balance of water. The camellia japonica extract is introduced as a sunscreen synergistic and antioxidant protection component, an optimized physical sunscreen system is combined, synergistic shielding of ultraviolet rays is achieved, skin barrier protection is enhanced, and the dual requirements of infant skin and sensitive skin groups for safety and protection are met.

The invention discloses application of plum callus extract in cosmetics for maintaining pigment stability and photoprotection as well as a related product and a preparation method thereof, and belongs to the technical field of cosmetics. The invention aims to solve the technical problems that the shelf life and the appearance of a product are seriously influenced by the conditions of color fading, color change or smell change after long-time illumination of the product containing the water-soluble pigment, and the effect of improving the light stability of the water-soluble pigment by the existing plant extract is not ideal. According to the key points of the technical scheme, the plum callus extract is added into the product, so that the tolerance of the product containing the water-soluble pigment to illumination is improved, and the influence of illumination on the shelf life and appearance of the product is reduced; a high-transparency packing material can be used for the product, so that the risk of illumination does not need to be worried; moreover, it is accidentally found that the plum callus extract can effectively relieve light damage of UVA and UVB to cells, so that the light protection effect of the product can be improved, and skin with light damage can be repaired.

A sunscreen composition includes a sunscreen active, a carrier, and a film former polymer. The sunscreen active may be selected from organic sunscreen actives. The carrier may include an amphiphile monolayer to encapsulate a least a portion of the total amount of the sunscreen active. The film former polymer may include an acrylic film former polymer selected from C1-C30 alkyl (meth)acrylates copolymer. Notably, the sunscreen active may provide enhanced photoprotection at relatively low concentration levels when present with the carrier, including the amphiphile monolayer, and the acrylic film former polymer.

The invention discloses a pan-fluorescence ultraviolet quenching antagonist and a preparation method thereof, and is characterized in that the pan-fluorescence ultraviolet quenching antagonist is formed by mixing a tert-butylhydroquinone solution, a photophysical triplet quenching agent and a base solution; the photophysical triplet quenching agent is azobenzene or a derivative azobenzene compound of azobenzene. The fluorescent anti-quenching agent disclosed by the invention is strong in anti-quenching effect, has a broad-spectrum light protection effect on common fluorophores, and is stable in performance and easy to store.

In some examples, the present application relates to a sunscreen composition comprising; zinc oxide; an emollient; and an antioxidant; wherein the zinc oxide exhibits a uniform morphology consisting of tetrapods. In some examples, the present application relates to a method of making a sunscreen composition, the method comprising: providing a composition comprising zinc metal; heating the composition to create zinc oxide tetrapods; mixing the zinc oxide tetrapods with an emollient and an antioxidant to create a dispersion; and heating the dispersion.