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Microemulsion skin whitening cosmetics and preparing method thereof

A technology for whitening cosmetics and cosmetics, which is applied in the field of microemulsion whitening cosmetics and its preparation, which can solve the problems of oil/water two-phase separation, thermodynamic instability, and high production costs, and achieve good stability, easy absorption, and wide application Effect

Inactive Publication Date: 2007-09-12
NORTHWEST A & F UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, except for the inherent active ingredients, the cosmetics currently on the market have not yet reached people's requirements, and are still in the form of ordinary emulsions, which have the following disadvantages: 1) The formation of ordinary emulsions generally requires energy from the outside world , such as stirring, ultrasonic pulverization, colloid mill treatment, etc. can be formed, and the production cost is high; 2) Ordinary emulsion is a thermodynamically unstable system, which will coalesce during storage and eventually separate into oil / water two phases; 3) Ordinary emulsion The particle size of the emulsion is generally greater than 400nm, which is not easy to absorb

Method used

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  • Microemulsion skin whitening cosmetics and preparing method thereof
  • Microemulsion skin whitening cosmetics and preparing method thereof
  • Microemulsion skin whitening cosmetics and preparing method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0030] The preparation steps of the present invention are as follows:

[0031] (1) Preparation of surfactant phase: Weigh a certain amount of surfactant, use it alone or compound it with other surfactants or co-surfactants in a certain proportion, and calculate the hydrophilic-lipophilic balance of the system ( HLB) value, fully stirred evenly. The HLB value of common emulsifiers can be found. Since the hydrophilic-lipophilic balance (HLB) value of surfactants is additive, the HLB value of surfactants can be calculated by the mass average method. For example, after two surfactants A and B are mixed, the hydrophilic-lipophilic balance HLB of the mixed surfactant AB Values ​​are:

[0032] HLB AB =(W A HLB A +W B HLB B ) / (W A +W B )

[0033] Where: W A , W B --The quality of mixture surfactant A, B;

[0034] HLB A , HLB B --Select the HLB value of two surfactants A, B or one surfactant A and co-surfactant B.

[0035] (2) Preparation of the oil phase: Accordi...

Embodiment 1

[0041] Component mass fraction (%)

[0042] EL-40 7.9

[0043] Isopropyl myristate (IPM) 0.66

[0044] Jojoba Oil 0.22

[0045] Amino Acid Moisturizer 0.49

[0046] Arbutin 2.75

[0047] Marine polysaccharide emollient 2.04

[0048] Fruit Acid Skin Rejuvenator 1.87

[0049] Flavor Appropriate amount

[0050] Appropriate amount of preservatives

[0051] Distilled water top up 100.00

[0052] Preparation method: weigh 2.25g of EL-40 in a beaker; then weigh 0.25g of compound oil with IPM:jojoba oil ratio of 3:1, mix with EL-40; slowly drop distilled water into the beaker, And fully stirred, the system was colorless and transparent at the beginning, with the increase of water, the system successively showed phenomena such as increased bubbles, increased viscosity, decreased transparency, decreased viscosity, etc. When it was added to 25.96g, the system suddenly became dilute and transparent Formation of oily microemulsions. Then add 0.49g amino acid moisturizing agent, 0...

Embodiment 2

[0054] Component mass fraction / %

[0055] EL-40 13.79

[0056] IPM 0.92

[0057] Wheat germ oil 0.18

[0058] Almond Oil 0.16

[0059] Mink Oil 0.20

[0060] snake oil 0.15

[0061] Vitamin E 0.12

[0062] Amino Acid Moisturizer 1.35

[0063] Arbutin 2.53

[0064] Marine polysaccharide emollient 2.76

[0065] Fruit Acid Skin Rejuvenator 3.06

[0066] Flavor Appropriate amount

[0067] Appropriate amount of preservatives

[0068] Distilled water top up 100.00

[0069] The preparation method is basically the same as in Example 1.

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Abstract

The micro emulsified cosmetic for making skin fair and delicate has granularity of 1-100 nm, and consists of arbutin 0.10-3.00 wt%, surfactant 10.00-48.00 wt%, oil 1.00-20.00 wt%, proper amount of humectant, emollient, essence and preservative, and distilled water for the rest. The cosmetic with micro emulsified matrix has excellent transdermal permeability, increased effective component solubility, raised spreading property, and excellent cool and moistened feeling.

Description

technical field [0001] The invention relates to the field of cosmetics, in particular to a transparent and stable microemulsion whitening cosmetic and a preparation method thereof. Background technique [0002] With the rapid development of the national economy and the great improvement of people's quality of life, consumers have higher and higher requirements for their own health. Cosmetics, especially functional cosmetics such as whitening and anti-aging, have become a necessity in daily life, and people have paid more and more attention to their safety, stability, practicability and effectiveness. However, except for the inherent active ingredients, the cosmetics currently on the market have not yet reached people's requirements, and are still in the form of ordinary emulsions, which have the following disadvantages: 1) The formation of ordinary emulsions generally requires energy from the outside world , such as stirring, ultrasonic pulverization...

Claims

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Application Information

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IPC IPC(8): A61K8/06A61K8/60A61K8/86A61K8/92A61Q19/04
Inventor 欧阳五庆董红宾
Owner NORTHWEST A & F UNIV
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