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2025 results about "Skin whitening" patented technology

Skin whitening, also known as skin lightening and skin bleaching, refer to the practice of using chemical substances in an attempt to lighten the skin or provide an even skin color by reducing the melanin concentration in the skin. Several chemicals have been shown to be effective in skin whitening, while some have proven to be toxic or have questionable safety profiles.

Boosting Tyrosinase Inhibiting Activity of Skin Whitening and Sunscreen Compositions

InactiveUS20040166069A1Surprising skin whitening skinSurprising skin skin lightening attributeCosmetic preparationsHair cosmeticsChemistrySkin whitening
The present invention relates to boosting of the skin whitening benefits of commonly used tyrosinase inhibitors, tyrosinase competitors, and melanin and other color bodies' reducing agents. The activity of such compositions can be synergistically enhanced by the inclusion of at least one antioxidant composition. This synergistic benefit is further increased if a UV-inhibitor or UV-absorber is also included in such compositions. This is both unexpected and surprising because most such tyrosinase inhibitors, tyrosinase competitors, or melanin reducing agents are also known to possess antioxidant and UV-absorbing properties. Thus, the skin whitening benefits are synergistically increased by combining at least one of the following; (i) a tyrosinase inhibiting agent, or (ii) a tyrosinase competing agent, or (iii) a melanin reducing agent, or (iv) combinations thereof; with at least one antioxidant composition. The additional inclusion of at least one UV inhibitor or absorber composition provides further enhancement of skin whitening effects from such tyrosinase inhibiting, tyrosinase competing or melanin reducing agents that are formulated in combination with an antioxidant composition. In a related application, the skin whitening property of a sunscreen composition can be boosted by the inclusion of an antioxidant composition and a tyrosinase inhibitor, tyrosinase competitor, or melanin and other color bodies reducing composition.
Owner:GUPTA SHYAM K

Multifunctional liquid crystal mask liquid and preparation method thereof

The invention relates to the technical field of skin care products, in particular to multifunctional liquid crystal mask liquid and a preparation method thereof. The multifunctional liquid crystal mask liquid comprises liquid crystal emulsifiers, thickening agents, humectants, sodium hyaluronate, preservatives, various functional components and water. The functional components comprise water-soluble or oil-soluble substances with skin whitening, anti-wrinkling, anti-allergy and anti-acne functions. The mask liquid is liquid crystal emulsion, the various functional components can be solubilizedby the aid of lamellar liquid crystals of an oil-water interface, the functions of a mask are remarkably increased, water-soluble substances in a liquid crystal layer and oil-soluble functional components in an oil phase can be effectively protected, failure of the mask liquid is avoided, and performance of the functional components in the mask liquid is promoted. According to the multifunctionalliquid crystal mask liquid produced by the method, a liquid crystal structure is similar to a human skin structure, has high skin safety, simulates human skins and is called a 'second human skin layer', the permeability of the mask liquid is improved, and skin absorption is facilitated.
Owner:EAST CHINA UNIV OF SCI & TECH +1

Anti-allergic skin-whitening mask solution, preparation method thereof and anti-allergic skin-whitening mask

The invention discloses an anti-allergic skin-whitening mask solution and a preparation method thereof. The anti-allergic skin-whitening mask solution is prepared from the following components in percentage by weight: 0.1-2 percent of O/W-type emulsifier, 0.1-2 percent of co-emulsifier, 0.1-1 percent of antioxidant, 3-8 percent of emollient, 0.01-0.2 percent of ethylene diamine tetraacetic acid disodium (EDTA-2Na), 0.01-5 percent of desensitizer, 1-8 percent of first moisturizer, 0.01-0.5 percent of thickener, 0.01-0.5 percent of second moisturizer, 0.01-0.5 percent of pH modifier, 0.01-0.5 percent of preservative, 1-6 percent of glucan, 0.01-0.5 percent of rose essential oil, 0.01-0.3 percent of agave leaf extract, 0.5-2 percent of rice bran yeast and the balance of deionized water. The mask solution has the advantages that the preparation method is simple; by virtue of an oil-in-water emulsification system, functional matters in the mask solution are more easily absorbed and permeate into the skin, high activity is kept, the cell activity is comprehensively improved, the skin reviving process is accelerated, the skin is kept wetted and translucent, the health and the elasticity of the skin are restored, and the soothing effect and the repairing effect are achieved.
Owner:朱敏
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