Cosmetics concealing wrinkles

Abstract

The present invention relates to a method for concealing wrinkles. The method for concealing wrinkles includes applying a cosmetic composition having an oil-wax gel for diffusing reflection of light at a wrinkled area to a skin, wherein the oil-wax gel is a gel comprising silicone oil and wax, wherein hardness of the oil-wax gel is 100 to 4000 dyn/cm.sup.2, and wherein the oil-wax gel comprises 5 to 95 parts by weight of the silicone oil relative to 100 parts by weight of the oil-wax gel and 1 to 50 parts by weight of the wax relative to 100 parts by weight of the oil-wax gel.

Claims

1. A method for concealing wrinkles comprising applying a cosmetic composition comprising: an oil-wax gel for diffusing reflection of light at a wrinkled area to a skin, wherein the oil-wax gel is a gel comprising silicone oil and wax, wherein hardness of the oil-wax gel is 100 to 4000 dyn/cm.sup.2, and wherein the oil-wax gel comprises 5 to 95 parts by weight of the silicone oil relative to 100 parts by weight of the oil-wax gel and 1 to 50 parts by weight of the wax relative to 100 parts by weight of the oil-wax gel.

2. The method of claim 1, wherein the silicone oil is at least one selected from the group consisting of cyclopentasiloxane, cyclomethicone, cyclotetrasiloxane, cyclohexasiloxane, cycloheptasiloxane, decamethylcyclopentasiloxane, cyclotetrasiloxane, cyclotrisiloxane, dimethicone, capryldimethicone, caprylyl trimethicone, caprylyl methicone, cetearylmethicone, hexadecylmethicone, hexylmethicone, lauryl methicone, myristyl methicone, phenyl methicone, stearyl methicone, stearyl dimethicone, trifluoropropyl methicone, cetyl dimethicone, polyphenylmethylsiloxane, dimethylpolysiloxane, methylphenylpolysiloxane, methyltrimethicone, diphenylsiloxyphenyl trimethicone, and phenyl trimethicone.

3. The method of claim 1, wherein the wax is at least one selected from the group consisting of: mineral wax selected from the group consisting of ceresin wax, paraffin wax, vaseline wax, petroleum wax, ozokerite, montan wax, and microcrystalline wax; animal wax selected from the group consisting of beeswax and lanolin; vegetable wax selected from the group consisting of candelilla, ouricurry, carnauba wax, Japan wax, cocoa butter, cork fiber, and sugarcane wax; hydrogenated oil which is solid at 25° C.; fatty ester and glyceride; synthetic wax comprises polyethylene wax; and silicone wax.

4. The method of claim 1, wherein the oil-wax gel further comprises an emollient.

5. The method of claim 4, wherein the emollient is comprised in an amount of 1 wt % to 30 wt % relative to 100 wt % by weight of the oil-wax gel.

6. The method of claim 4, wherein the emollient is at least one selected from the group consisting of natural or synthetic triglyceride, ester oil, and hydrocarbon oil.

7. The method of claim 1, wherein the oil-wax gel further comprises silicone elastomer.

8. The method of claim 7, wherein the silicone elastomer is comprised in an amount of 1 wt % to 30 wt % relative to 100 wt % by weight of the oil-wax gel.

9. The method of claim 7, wherein the silicone elastomer is at least one selected from the group consisting of dimethicone crosspolymer, cetearyl dimethicone crosspolymer, cetearyldimethicone/vinyldimethicone crosspolymer, dimethicone/vinyldimethicone crosspolymer, dimethicone/polyethylene glycol (PEG)-10 crosspolymer, dimethicone/PEG-15 crosspolymer, dimethicone/polyglyceryl-3 crosspolymer, dimethicone/silsesquioxane copolymer, dimethicone/phenylvinyl dimethicone crosspolymer, vinyl dimethicone/lauryl dimethicone crosspolymer, dimethicone/bis-isobutyl polypropylene glycol (PPG)-20 crosspolymer, PEG-12 dimethicone/PPG-20 crosspolymer, lauryl dimethicone PEG-15 crosspolymer, lauryl dimethicone/polyglycerin-3 crosspolymer, and polysilicon-11.

10. The method of claim 1, wherein the cosmetic composition is formulated in a form of a solid, oil (O)/water (W) emulsion, W/O emulsion, W/O/W emulsion, O/W/O emulsion, or water dispersion.

11. The method of claim 1, wherein the oil is placed in an inner space of wax crystals, wherein the wax comprises ceresin wax in an amount of 5 wt % to 50 wt % relative to 100 wt % by weight of the oil-wax gel, wherein the cosmetic composition does not contain powder.

12. The method of claim 11, wherein the powder is at least one selected from the group consisting of silica, polymethyl methacrylate (PMMA), alumina, Talc, mica, barium sulfate (BaSO.sub.4), titanium dioxide (TiO.sub.2), zinc oxide (ZnO) and boron nitride.

Description

DESCRIPTION OF DRAWINGS

(1) FIG. 1 is a graph showing changes in wrinkle depths (the result of the wrinkle-concealing effects) upon application of the oil-wax gel according to an exemplary embodiment.

(2) FIG. 2 is a graph showing changes in number of wrinkles (the result of the wrinkle-concealing effects) upon application of the oil-wax gel according to an exemplary embodiment.

(3) FIG. 3 is a graph showing changes in wrinkle lengths (the result of the wrinkle-concealing effects) upon application of the oil-wax gel according to an exemplary embodiment.

(4) FIG. 4 is a graph showing changes in roughness (the result of the wrinkle-concealing effects) upon application of the oil-wax gel according to an exemplary embodiment.

(5) FIG. 5 is images comparing the wrinkle-concealing effects before and after the application of the oil-wax gel according to an exemplary embodiment.

BEST MODE

(6) Hereinbelow, the present invention will be described in detail with accompanying exemplary embodiments. However, the exemplary embodiments disclosed herein are only for illustrative purposes and should not be construed as limiting the scope of the present invention.

Examples 1 and 2, and Comparative Examples 1 to 3: Preparations of Oil-Wax Gel and Oil Powder Cosmetic Component

(7) Each ingredient was mixed according to the ratios shown in Table 1 below, dissolved by heating at 80° C., and then cooled to room temperature to prepare an oil-wax gel (Examples 1 and 2, and Comparative Examples 1 and 2) and an oil-powder cosmetic component (Comparative Examples 3).

(8) TABLE-US-00001 TABLE 1 (wt %) Compar- Compar- Compar- ative ative ative Exam- Exam- Exam- Exam- Exam- Ingredients ple 1 ple 2 ple 1 ple 2 ple 3 1. Cyclopentasiloxane To 100 To 100 To 100 To 100 To 100 2. Dimethicone 10 10 10 10 10 3. Hexyldecyl 10 10 10 10 10 ethylhexanoate (ester oil) 4. Dimethicone/vinyl 10 10 10 10 10 dimethicone crosspolymer (silicone elastomer) 5. Ceresin wax 20 20 0.5 55 6. Microcrystalline 20 wax 7. Silica 20

Experimental Example 1: Measurement of Hardness of Oil-Wax Gel

(9) Hardness of the oil-wax gels prepared in Examples 1 and 2, and Comparative Examples 1 to 3 was measured and shown in Table 2 below. The hardness up to the depth of 2 mm of a sample was measured using adapter #3, a Fudoh Rheometer RT-3005D model of Rheotec Co, at an operation speed of 2 cm/min. After five measurements, an average value was derived.

(10) TABLE-US-00002 TABLE 2 Exam- Exam- Comparative Comparative Comparative ple 1 ple 2 Example 1 Example 2 Example 3 Hardness 2490 3120 60 5000 Unmeasurable (dyn/cm.sup.2)

(11) In Examples 1 and 2, when applied to the skin, the oil-wax gel showed its wrinkle-concealing effect while effectively filling in the uneven skin caused by wrinkles. In contrast, when the oil-wax gel of Comparative Example 1 was applied to the skin, the oil-wax gel thereof completely crumbled away, and therefore, it was not possible to achieve the wrinkle-concealing effect. In the case of the oil-wax gel of Comparative Example 2, which had high hardness, it was difficult to apply it to the skin. On the other hand, in the case of the oil-powder cosmetic component obtained from the composition rate of Comparative Example 3, it was able to be applied to the skin, but failed to provide an excellent feeling of use.

Experimental Example 2: Investigation of Wrinkle-Concealing Effect Through Image Analysis

(12) The oil-wax gel of Example 1 was applied to the eyes of seven adult males and females. In addition, the wrinkle-concealing effect was measured through image analysis using PRIMOS lite (GFM). Specifically, it was evaluated in terms of wrinkle depth, wrinkle length, number of wrinkles, and roughness.

(13) The results are shown in Table 3 below and FIGS. 1 to 4.

(14) TABLE-US-00003 TABLE 3 Wrinkle Wrinkle No. of Roughness Depth (μm) Length (μm) Wrinkles (μm) Before use 60.00 203.00 341.67 33.10 After use 55.33 185.67 279.00 31.90 Reduction Rate (%) 7.78 8.54 18.34 3.63

(15) The oil-wax gel of Example 1 was shown to have an excellent wrinkle-concealing effect in terms of the wrinkle depth, wrinkle length, number of wrinkles, and roughness.

Experimental Example 3: Comparison of the Wrinkle-Concealing Effects of Example 1 and Comparative Example 3

(16) Usability of the cosmetic composition of Example 1 and Comparative Example 3 was tested on 16 volunteers aged in their 30s to 50s who have problems with their wrinkles. Test items were wrinkle concealment, white turbidity, caking up, agglomeration, dryness, and satisfaction, and 0 to 5 points were given for each item. The average score results are shown in Table 4 below.

(17) TABLE-US-00004 TABLE 4 Items Example 1 Comparative Example 3 Wrinkle concealment 4.6 4.4 White turbidity 4.7 3.8 Dryness 4.2 3.5 Caking up 3.9 3.6 Agglomeration 4.3 4.1 Satisfaction 4.5 3.9

(18) As shown above, the oil-wax gel of Example 1 had a better wrinkle-concealing effect and a higher score for all other items, i.e., white turbidity, dryness, caking up, and agglomeration, compared to that of Comparative Example 3, which contains a large amount of powder.

Comparative Example 4: Preparation of Cosmetic Composition for Concealing Wrinkles, Containing Powder

(19) The cosmetic composition of Comparative Example 4 was prepared according to the ratios shown in Table 5 below. The oil phases of items 1 to 7 were heated and dissolved at 70° C. in a separate container. Items 11 and 12 were added to the aqueous phase of items 8 to 10 to disperse sufficiently at room temperature, and heated to 70° C. to mix with the oil phase. The aqueous phase was then emulsified (primary) with a homogenizer at 70° C. After introducing item 15 dissolved in a small amount of purified water, the resultant was emulsified (secondary) and then cooled to 50° C. After introducing well-dispersed item 14 into item 13, the resultant was then emulsified (tertiary) and cooled to room temperature to prepare the cosmetic composition.

(20) TABLE-US-00005 TABLE 5 Components Content (wt %) 1. Cetearyl alcohol  1.00 2. Shea butter  8.00 3. Caprylic/capric triglyceride  8.00 4. Glyceryl stearate  1.00 5. PEG-100 stearate  1.00 6. Polyglyceryl-3  2.00 methylglucose distearate 7. Dimethicone 12.00 8. Distilled water Up to 100 9. Glycerin  5.00 10. Trisodium EDTA  0.02 11. Xanthan gum  0.10 12. Carbopol  0.30 13. Distilled water 15.00 14. Silica 15.00 15. Neutralizing agent  0.30

Experimental Example 4: Comparison of Wrinkle-Concealing Effects of Example 1 and Comparative Example 4

(21) Usability of the cosmetic composition of Example 1 and Comparative Example 4 was tested on 16 volunteers aged in their 30s to 50s who have problems with their wrinkles. Test items were wrinkle concealment, white turbidity, caking up, agglomeration, dryness, and satisfaction, and 0 to 5 points were given for each item. The average score results are shown in Table 6 below.

(22) TABLE-US-00006 TABLE 6 Items Example 1 Comparative Example 4 Wrinkle concealment 4.6 4.4 White turbidity 4.7 3.8 Caking up 3.9 3.6 Agglomeration 4.3 4.1 Dryness 4.2 3.5 Satisfaction 4.5 3.9

(23) As shown above, the oil-wax gel of Example 1 had a better wrinkle-concealing effect and a higher score for all items, i.e., white turbidity, caking up, agglomeration, and dryness, compared to that of Comparative Example 4, which contains a large amount of powder.

Experimental Example 5: Application Test of Cosmetic Composition Comprising Oil-Wax Gel

(24) The cosmetic composition of Example 1 for concealing wrinkles was applied to the back of a hand, and then the wrinkle-concealing effects were observed before and after the application. As a result, as shown in FIG. 5, it was confirmed that the cosmetic composition comprising the oil-wax gel according to the present invention effectively concealed the wrinkles.

(25) From the foregoing, a skilled person in the art to which the present invention pertains will be able to understand that the present invention may be embodied in other specific forms without modifying the technical concepts or essential characteristics of the present invention. In this regard, the exemplary embodiments disclosed herein are only for illustrative purposes and should not be construed as limiting the scope of the present invention. Furthermore, the scope of the present invention is defined by the appended claims rather than the detailed description, and it should be understood that all modifications or variations derived from the meanings and scope of the present invention and equivalents thereof are included in the scope of the appended claims.