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Cosmetic composition comprising an ascorbic acid or salicylic acid compound
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A composition and fatty acid technology, which can be used in medical preparations, cosmetics, cosmetic preparations and other directions containing active ingredients, and can solve problems such as rough appearance, uneven emulsion, etc.
Active Publication Date: 2012-01-11
LOREAL SA
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Oil droplets dispersed in the water phase have a rough appearance, making the emulsion non-uniform
Method used
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Embodiment 1
[0151] The emulsion of Example 1 has good stability after 24 hours at 55°C and also after 2 months at 45°C. The emulsion obtained was fine and dense when viewed under a microscope.
[0152] The composition is intended for daily application to the face during the day.
[0153] The comparative emulsion of Example 1' was unstable after 2 months storage at 45°C: the emulsion was coarser and more degraded when observed under the microscope. Phase separation release on the surface of the oil phase was observed with the naked eye.
Embodiment 2
[0184] The emulsion of Example 2 has good stability after 24 hours at 55°C and also after 2 months at 45°C. The emulsion obtained was fine and dense when viewed under a microscope.
[0185] The composition is intended for daily application to the face during the day.
[0186] The comparative emulsion of Example 2' was unstable after 2 months storage at 45°C: the emulsion was coarser and more degraded when observed under the microscope. Phase separation release on the surface of the oil phase was observed with the naked eye.
Embodiment 3
[0188] A composition for facial care in the form of an oil-in-water emulsion was prepared having the following composition:
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Abstract
The invention relates to a cosmetic composition comprising ascorbic acid or salicylic acid compounds, and relates to a composition in the form of an oil-in-water emulsion containing: an ester of fatty acid and of polyethylene glycol; an additional surfactant chosen from esters of C16-C22 fatty acid and of sorbitan and esters of C16-C22 fatty acid and of glycerol; a polycondensate of ethylene oxide and of propylene oxide consisting of polyethylene glycol and polypropylene glycol blocks; and an ascorbic acid compound or a salicylic acid compound. The composition has good stability, in particular after hours at 55 DEG C. The invention relates to application in caring for and making up keratinous substances.
Description
technical field [0001] The subject of the present invention is a cosmetic oil-in-water emulsion comprising an active ingredient selected from ascorbic acid compounds or salicylic acid compounds and a specific mixture of surfactants. Background technique [0002] Ascorbic acid or vitamin C and its derivatives are commonly used due to their many beneficial properties. In particular, ascorbic acid stimulates the synthesis of connective tissue, especially collagen, enhances the defense of epidermal tissue against external attacking factors such as ultraviolet rays and pollution, compensates for the lack of vitamin E in the skin, removes skin pigment, and has an anti-free radical effect. The latter two properties mentioned above make ascorbic acid an excellent candidate for cosmetic or dermatological active ingredients for combating or preventing skin aging. Unfortunately, due to its chemical structure (of an alpha-ketolide), ascorbic acid is very sensitive to certain environmen...
Claims
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Application Information
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