Whitening and brightening composition and preparation method thereof
A composition and whitening technology, which can be used in pharmaceutical formulations, cosmetic preparations, cosmetic preparations, etc., can solve the problems of long production cycle, low yield and high cost
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[0052] In a preferred embodiment, the preparation method of said chitosan and hyperbranched polyamide complex at least comprises the following steps:
[0053] 5g of dodecanedioic acid was dissolved in 20mL dimethyl sulfoxide to obtain dodecanedioic acid solution; 15g of chitosan was dissolved in 50mL of dimethyl sulfoxide to obtain chitosan solution; Dissolve the hyperbranched polyamide in 50mL dimethyl sulfoxide to obtain a hyperbranched polyamide solution; then add the dodecanedioic acid solution into the reaction kettle, stir, and keep the temperature at 50°C, then add the chitosan solution, and react for 3h After cooling down, the chitosan modified by dodecanedioic acid can be obtained; then, hyperbranched polyamide solution is added to the chitosan modified by dodecanedioic acid, and the reaction is continued for 2 hours at 60° C., and then the temperature is lowered, washed, After drying, the composite of chitosan and hyperbranched polyamide can be obtained.
[0054] ...
Embodiment approach 1
[0099] Embodiment 1: Embodiment 1 provides a whitening and brightening composition. In parts by weight, its raw materials at least include: 20-60 parts of Selaginella extract, 10-30 parts of tomato extract, 3 parts of ambrette seed extract ~10 parts, acetylglucosamine 5~20 parts, hyaluronic acid 3~18 parts, hydrolyzed hyaluronic acid 1~10 parts, dipotassium glycyrrhizinate 1~8 parts, deionized water 10~30 parts.
Embodiment approach 2
[0100] Embodiment 2: Embodiment 2 is the same as Embodiment 1, the difference is that the whitening and brightening composition, in parts by weight, its raw materials at least include: 40-50 parts of Selaginella extract, 20-25 parts of tomato extract 5-8 parts of ambrette seed extract, 15-20 parts of acetylglucosamine, 10-15 parts of hyaluronic acid, 5-8 parts of hydrolyzed hyaluronic acid, 5-7 parts of dipotassium glycyrrhizinate, deionized water 20-30 servings.
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