Freeze-dried powder having whitening activity and preparation method and application of freeze-dried powder

Abstract

The invention provides freeze-dried powder having whitening activity and a preparation method and application of the freeze-dried powder. The freeze-dried powder consists of tranexamic acid, nicotinamide, mannan and ascorbyl glucoside. The freeze-dried powder can effectively lighten melanin; after being used for a long term, the freeze-dried powder can brighten skin color and whiten skin; the freeze-dried powder is free from chemical preservatives, does not stimulate the skin, is stable, does not change color, and is high in product activity, safe and effective. The invention also provides a preparation method of the freeze-dried powder. The freeze-drying time can be effectively shortened, the freeze-dried powder is energy-saving and environmentally-friendly, the production cost is reduced, and a freeze-dried powder product which is good in shaping effects, firm in appearance, high in redissolution speed and good in solution clarity can be prepared. Besides, the freeze-dried powder canalso be directly added to other cosmetics in a liquid preparation formulation, such as essence and moisturizer to dissolve for use, and can also mutually dissolve with a solvent to be added to cosmetics in a solid preparation formulation, such as moisturizing cream, to be uniformly stirred for use, so as to reinforce effects, and a new development thinking is provided for development of whiteningproducts.

Description

technical field [0001] The invention belongs to the field of cosmetics, in particular to a freeze-dried powder with whitening activity and its preparation method and application. Background technique [0002] With the development of the economy and the improvement of people's living standards, people pay more and more attention to the whitening of the skin, especially Asian women pay more attention to the whitening of the skin, and require the research of more natural, safer and milder whitening agents, which also makes Whitening products are developing rapidly. [0003] According to the whitening mechanism, the current whitening active substances are mainly divided into three categories. 1. Antioxidant whitening active substances mainly include vitamin C, vitamin E and their derivatives. The disadvantage is that they are easily oxidized and inactivated and have a certain degree of irritation. They are easy to change color when added to the product, thus limiting their use;...

AI Technical Summary

Problems solved by technology

1. Antioxidant whitening active substances mainly include vitamin C, vitamin E and their derivatives. The disadvantage is that they are easily oxidized and inactivated and have a certain degree of irritation. They are easy to change color when added to the product, thus limiting their use; 2. 1. Substances that inhibit tyrosinase activity mainly include tranexamic acid, arbutin, kojic acid, and small molecule active peptides, which also have problems such as irritation and discoloration; 3. Substances that accelerate the metabolism of the stratum corneum to achieve whitening effects mainly include Fruit acid, salicylic acid, etc., but the concentration of these substances is strictly limited, and people with sensitive skin should use them with caution

[0004] At present, the main dosage forms of whitening cosmetics are concentrated in products such as essence water, cream and facial mask. The formula ingredients of these products are relatively complex, and many whitening active substances are less stable after dissolution. In addition, some preservatives will also increase irritation. source, thereby affecting the effect of the final product

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