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Oil in water type emulsion skin cosmetics

A technology of oil-in-water type and cosmetics, which is applied in the direction of cosmetics, cosmetics, cosmetic preparations, etc. It can solve the problems of not being able to reduce the stickiness of glycerin and the good usability of acrylamide thickeners, etc., and achieve a simple usability evaluation method , Good skin improvement effect, excellent penetration effect

Active Publication Date: 2011-05-11
SHISEIDO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past, this acrylamide thickener was an effective substitute for thickeners such as carboxyvinyl polymers, xanthan gum, or hydroxyethyl cellulose, which are widely used as cosmetic thickeners. When using glycerin, which has a good skin improvement effect, not only the good usability of acrylamide thickeners is lost, but also the stickiness caused by glycerin cannot be reduced.

Method used

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  • Oil in water type emulsion skin cosmetics
  • Oil in water type emulsion skin cosmetics
  • Oil in water type emulsion skin cosmetics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～5 and comparative example 1～7

[0142] According to the prescriptions recorded in the following Tables 1 to 3, the cream of the oil-in-water emulsified skin cosmetics was manufactured according to the conventional method, and the stability, usability, and Evaluation of skin improvement effect. In addition, the storage modulus G' and the loss modulus G' were also measured. The results are shown in Tables 1 to 3. In addition, the "sodium acrylate / 2-acrylamide-2-methylpropanesulfonate sodium copolymer in Table 1 "( *1 ) used "Simulgel EG" (manufactured by Sepc, active ingredient 37.5%).

[0143] Table 1

[0144]

Example

comparative example

1

1

2

3

4

[0145] (1) Ion exchanged water

margin

margin

margin

margin

margin

(2) Glycerin [(c) ingredient]

12.0

12.0

12.0

12.0

12.0

(3) 1,3-butanediol

3.0

6.0

2.0

1.2

7.0

(4) dipropylene glycol

-

-

5.0

-

0

...

Embodiment 5

[0172] Embodiment 5 whitening skin cream

[0173] (compounding ingredients) (mass%)

[0174] (1) Liquid Paraffin 2.0

[0175] (2) Isohexadecane 4.0

[0176] (3) Isodecyl Benzoate 2.0

[0177] (4) POE (21) stearyl ether (HLB15.5) 2.0

[0178] (5) POE (2) stearyl ether (HLB4.9) 0.5

[0179] (6) Cetyl alcohol 0.15

[0180] (7) Bakelite alcohol 0.1

[0181] (8) Myristyl myristate 5.0

[0182] (9) Spice 0.1

[0183] (10)Ion-exchanged water balance

[0184] (11) Dipropylene glycol 2.0

[0185] (12) Glycerin 13.0

[0186] (13) Tranexamic acid 2.0

[0187] (14) Phenoxyethanol 0.7

[0188] (15) Ethanol 3.0

[0189] (16) Vinylpyrrolidone / 2-acrylamide-2-methylpropanesulfonate ammonium copolymer

[0190] (“ARISTOFLEX AVC”, manufactured by CLARIANT Corporation) 0.1

[0191] (17) Citric acid 0.02

[0192] (18) Sodium citrate 0.08

[0193]

[0194]At a temperature of 70°C, (1) to (9) were uniformly mixed and dissolved (oil phase). On the other hand, (9) to (18) were unifo...

Embodiment 6

[0198] Embodiment 6 sunscreen and skin care cream

[0199] (compounding ingredients) (mass%)

[0200] (1) Octyl p-methoxycinnamate 6.0

[0201] (2) Octylglyceryl Di-p-methoxycinnamate 2.0

[0202] (3) 4'-tert-butyl-4-methoxydibenzoylmethane 1.0

[0203] (4) Myristyl myristate 3.0

[0204] (5) 2-ethylhexanoic acid-2-ethylhexyl ester 5.0

[0205] (6) Dimethicone (20mPa·s) 2.0

[0206] (7) Vaseline 0.5

[0207] (8) PEG (40) glyceryl isostearate (HLB15.0) 1.2

[0208] (9) Sorbitan tristearate (HLB2.1) 0.25

[0209] (10)Ion-exchanged water balance

[0210] (11) Glycerin 10.0

[0211] (12) 1,3-Butanediol 1.0

[0212] (13) Sodium acrylate / 2-acrylamide-2-methylpropanesulfonic acid sodium salt copolymer 1.0

[0213] (“Simulgel EG”, active ingredient 37.5%, SEPIC company (actual ingredient manufacturing) 0.38)

[0214] (14) Spice 0.1

[0215]

[0216] At a temperature of 70°C, (1) to (9) were uniformly mixed and dissolved (oil phase). On the other hand, (10) to (14) were...

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Abstract

The object of the present invention is to provide an oil-in-water emulsifying cosmetic for skin which can expand softly on the skin, has no glutinous sense and excellent osmosis, can moisture skin, keep moisture, and has better skin improving effect. The oil-in-water emulsifying cosmetic for skin of the invention contains: 0.1-1.0 mass% (a) acrylamide thickening agent, 0.5-5.0 mass% (b) ester oilwith melting point more than 40 DEG C, and 10-20 mass% (c) glycerol. Furthermore, the cosmetic for skin has the following rheidity: in the strain dispersion measurement of 25 DEG C executed by plate-type viscoelasticity determinator, in the range that the strain is more than 0.01% and less than 1%, the storage modulus G' is less than 10,000 Pa, that is G'<10,000 Pa, and the loss modulus G'' is more than 100 Pa, that is G''>=100 Pa, and the G'>G''; in the range that the strain is more than 1% and less than 10%, the relation of the G' and the G'' is reversed, that is G'<G''; and the relation ofG'<G'' is kept in the range that the strain is more than 10%.

Description

technical field [0001] The present invention relates to an oil-in-water emulsified skin cosmetic having excellent usability and skin improvement effects. More specifically, the present invention relates to an oil-in-water emulsified skin cosmetic which is excellent in usability and skin improvement effect while containing a large amount of glycerin. In addition, the present invention relates to a usability evaluation method of cosmetics. Background technique [0002] Glycerin has long been known as a cosmetic ingredient having a good skin-improving effect such as a good moisturizing effect and a rough skin-improving effect. However, when a large amount of glycerin is added in order to obtain an excellent skin improvement effect, although a good skin improvement effect can be obtained, on the other hand, as the amount of addition increases, there will be a lack of moisturizing feeling, and the lack of active ingredients will gradually penetrate into the skin. The penetratin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K8/06A61K8/81A61K8/37A61Q1/00G01N11/00
Inventor 大村孝之
Owner SHISEIDO CO LTD
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