Cosmetic kit containing a mixed cosmetic composition whose properties change from a liquid lotion to a cream.
A cosmetic kit with separated wax and salt compositions transforms into a cream upon mixing, addressing running and phase change issues with conventional cosmetics, ensuring stability and ease of use.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- AMOREPACIFIC CORP
- Filing Date
- 2025-09-11
- Publication Date
- 2026-05-21
AI Technical Summary
Conventional cosmetic compositions face issues such as running off upon application, requiring refrigeration, or needing significant physical force to change phases, leading to instability and inconvenience.
A cosmetic kit comprising a first liquid nanoemulsion containing wax and oil, and a second liquid composition with a salt and pH lowering agent, separated until use, which transforms into a cream upon mixing.
The kit changes to a cream form quickly without substantial force, maintaining stability at low temperatures and providing a smooth application experience.
Smart Images

Figure 2026084662000001_ABST
Abstract
Description
[Technical Field]
[0001] This disclosure relates to a cosmetic kit containing a mixed cosmetic composition whose properties change from a liquid lotion to a cream. [Background technology]
[0002] Liquid cosmetic compositions typically have the disadvantage of being difficult to use because they run off immediately upon application to the face or skin. Solid cosmetic compositions, often in balm form, must be scooped out with the hands before application to the face or skin. Applying solid cosmetic compositions by scooping them out with the hands in this way can lead to hygiene problems and potentially compromise the stability of the formulation.
[0003] To overcome the limitations in the properties of these formulations, conventional cosmetic compositions that remain solid at low temperatures but change to a liquid phase after a predetermined time at human skin temperature have the drawback that, although they change to a liquid phase at human skin temperature, they still run off when applied to the face or skin, and are inconvenient in terms of storage as they need to be refrigerated before application. Furthermore, conventional cosmetic compositions that change to a solid phase when rubbed into the skin after application require a certain amount of force and repeated rubbing to change to a solid phase, and are limited in that they form formulations that are somewhat thinner than typical creams. [Prior art documents] [Patent Documents]
[0004] [Patent Document 1] Korean Published Patent Publication No. 10-2021-0051907 [Overview of the project] [Problems that the invention aims to solve]
[0005] The present disclosure aims to provide a cosmetic kit that can change its property from a liquid lotion form to a cream form in a short time without applying a large physical force, and can stably form and maintain a cream preparation even under low temperature or in an environment with a small applied force.
Means for Solving the Problems
[0006] To achieve the above object, an embodiment of the present invention includes a first agent composition in the form of a liquid nanoemulsion containing wax and oil, a liquid second agent composition containing at least one of a salt and a pH lowering agent, and water, and provides a cosmetic kit in which the first agent composition and the second agent composition are separated from each other.
Effects of the Invention
[0007] The cosmetic kit according to the present disclosure can change its property from a liquid lotion form to a cream form in a short time without applying a large physical force, and can stably form and maintain a cream preparation even under low temperature or in an environment with a small applied force.
Brief Description of the Drawings
[0008] [Figure 1] It is a photograph of the first agent composition (left side) according to an embodiment of the present invention and a mixed composition (right side) obtained by dropping two drops of the second agent composition into the first agent composition. [Figure 2] It is a photograph of the first agent composition (left side) according to an embodiment of the present invention and a mixed composition (right side) obtained by dropping two drops of the second agent composition into the first agent composition, each rubbed in five times. [Figure 3A] It is a photograph immediately after dropping the first agent composition according to an embodiment of the present invention on the back of the hand. [Figure 3B] It is a photograph of the first agent composition according to an embodiment of the present invention rubbed in five times. [Figure 3C] It is a photograph of the first agent composition according to an embodiment of the present invention rubbed in twenty times. [Figure 4A]This is a photograph taken immediately after dropping the first component composition according to one embodiment of the present invention onto the back of the hand. [Figure 4B] This is a photograph of the mixed composition immediately after adding two drops of the second component composition to the first component composition according to one embodiment of the present invention. [Figure 4C] This is a photograph of a mixed composition according to one embodiment of the present invention after being rubbed in five times. [Figure 4D] This is a photograph of a mixed composition according to one embodiment of the present invention after being rubbed 10 times. [Modes for carrying out the invention]
[0009] The present invention will be described in detail below.
[0010] In one embodiment, the present invention relates to a cosmetic kit comprising a first component composition in the form of a liquid nanoemulsion and a second component composition in the form of a liquid.
[0011] In one embodiment, the first component composition and the second component composition may be separated from each other.
[0012] In one embodiment, the first component composition and the second component composition may be mixed immediately before use.
[0013] In one embodiment, when the first component composition and the second component composition are mixed, the properties of the mixed composition may change from a liquid lotion to a cream.
[0014] In one embodiment, the viscosity of the liquid first agent composition may be 100 to 1000 cps. Specifically, the viscosity of the liquid first agent composition may be 100 cps or more, 110 cps or more, 120 cps or more, 130 cps or more, 140 cps or more, 150 cps or more, 160 cps or more, 170 cps or more, 180 cps or more, 190 cps or more, 200 cps or more, 210 cps or more, 220 cps or more, 230 cps or more, 240 cps or more, 260 cps or more, 280 cps or more, 300 cps or more, 320 cps or more, 34 The viscosity may be 0 cps or more, 360 cps or more, 380 cps or more, 400 cps or more, 420 cps or more, 440 cps or more, 460 cps or more, 480 cps or more, 500 cps or more, 550 cps or more, 600 cps or more, 650 cps or more, 700 cps or more, 750 cps or more, 800 cps or more, 850 cps or more, 900 cps or more, or 950 cps or more, and the viscosity of the liquid first agent composition may be 1000 cps Below, 990cps or less, 980cps or less, 970cps or less, 960cps or less, 950cps or less, 940cps or less, 930cps or less, 920cps or less, 910cps or less, 900cps or less, 890c ps or less, 880cps or less, 870cps or less, 860cps or less, 850cps or less, 840cps or less, 830cps or less, 820cps or less, 810cps or less, 800cps or less, 780cps or less, 760 It may be less than or equal to cps, less than or equal to 740cps, less than or equal to 720cps, less than or equal to 700cps, less than or equal to 680cps, less than or equal to 660cps, less than or equal to 640cps, less than or equal to 620cps, less than or equal to 600cps, less than or equal to 580cps, less than or equal to 560cps, less than or equal to 540cps, less than or equal to 520cps, less than or equal to 500cps, less than or equal to 450cps, less than or equal to 400cps, less than or equal to 350cps, less than or equal to 300cps, less than or equal to 250cps, less than or equal to 200cps, or less than or equal to 150cps.
[0015] In one embodiment, the hardness of the creamy mixed composition was 10 to 70 gf / cm². 2 It may also be the case that the hardness of the creamy mixed composition is 10 gf / cm². Specifically, the hardness of the creamy mixed composition is 10 gf / cm². 2 Above, 12gf / cm 2 Above, 14gf / cm2 above, 16 gf / cm 2 above, 18 gf / cm 2 above, 20 gf / cm 2 above, 21 gf / cm 2 above, 22 gf / cm 2 above, 23 gf / cm 2 above, 24 gf / cm 2 above, 25 gf / cm 2 above, 26 gf / cm 2 above, 27 gf / cm 2 above, 28 gf / cm 2 above, 29 gf / cm 2 above, 30 gf / cm 2 above, 35 gf / cm 2 above, 40 gf / cm 2 above, 45 gf / cm 2 above, 50 gf / cm 2 above, 55 gf / cm 2 above, 60 gf / cm 2 above, or 65 gf / cm 2 may be above, and the hardness of the cream-like mixed composition is 70 gf / cm 2 below, 68 gf / cm 2 below, 66 gf / cm 2 below, 65 gf / cm 2 below, 64 gf / cm 2 below, 62 gf / cm 2 below, 60 gf / cm 2 below, 58 gf / cm 2 below, 56 gf / cm 2 below, 54 gf / cm 2 below, 52 gf / cm 2 below, 50 gf / cm 2 below, 45 gf / cm 2 below, 40 gf / cm 2 below, 35 gf / cm 2 below, 30 gf / cm 2 below, or 28 gf / cm 2 may be below.
[0016] In one embodiment, the first component composition and the second component composition may be mixed in a weight ratio of 15 to 25:1. Specifically, the weight ratio of the first component composition to the second component composition may be 15:1 or more, 16:1 or more, 17:1 or more, 18:1 or more, 19:1 or more, 20:1 or more, 21:1 or more, 22:1 or more, 23:1 or more, or 24:1 or more. Alternatively, the weight ratio of the first component composition to the second component composition may be 25:1 or less, 24:1 or less, 23:1 or less, 22:1 or less, 21:1 or less, 20:1 or less, 19:1 or less, 18:1 or less, 17:1 or less, or 16:1 or less.
[0017] In one embodiment, the mixing may be performed not only by directly rubbing the mixture together by hand, but also by shaking a container in which the first and second compositions are placed together.
[0018] In one embodiment of the present invention, the cosmetic kit may change to a creamy consistency simply by placing the first composition and the second composition into a single container immediately before use and shaking it several times, for example, 1 to 5 times, 1 to 4 times, 1 to 3 times, or 1 to 2 times.
[0019] Furthermore, the cosmetic kit according to one embodiment of the present invention may be used as a cosmetic composition for a cream formulation by mixing the first component composition and the second component composition, or, if necessary, the first component composition in liquid nanoemulsion form may be used alone as a cosmetic composition for a lotion formulation.
[0020] In one embodiment, the first agent composition may include wax and oil.
[0021] In one embodiment, the wax may be at least one selected from the group consisting of cetyl esters, polyglyceryl-3 methylglucose distearate, cetyl palmitate, cetyl alcohol, olive wax, beeswax, carnauba wax, candelilla wax, microcrystalline wax, and jojoba esters.
[0022] In one embodiment, the wax may be included in an amount of 5 to 20% by weight relative to the total weight of the first component composition. Specifically, the wax may be included in an amount of 5% or more by weight, 6% or more by weight, 7% or more by weight, 8% or more by weight, 9% or more by weight, 10% or more by weight, 11% or more by weight, 12% or more by weight, 13% or more by weight, 14% or more by weight, 15% or more by weight, 16% or more by weight, 17% or more by weight, or 18% or more by weight relative to the total weight of the first component composition. Alternatively, the wax may be included in an amount of 20% or less by weight, 19% or less by weight, 18% or less by weight, 17% or less by weight, 16% or less by weight, 15% or less by weight, 14% or less by weight, 13% or less by weight, 12% or less by weight, 11% or less by weight, 10% or less by weight, 9% or less by weight, 8% or less by weight, 7% or less by weight, or 6% or less by weight relative to the total weight of the first component composition.
[0023] In one embodiment, the oil may be an ester-based oil.
[0024] In one example, the ester oil may be at least one selected from the group consisting of dicaprylyl carbonate, isopropyl myristate, isopropyl palmitate, octyl-dodecyl myristate, cetyl ethylhexanoate, C14-18 alkyl ethylhexanoate, coco-caprylate / caprate, decyl cocoate, butylene glycol dicaprylate / dicprate, diisostearyl malate, and di-C12-13 alkyl malate.
[0025] In one embodiment, the oil may be included in an amount of 3 to 10% by weight relative to the total weight of the first composition. Specifically, the oil may be included in an amount of 3% or more by weight, 3.5% or more by weight, 4% or more by weight, 4.5% or more by weight, 5% or more by weight, 5.5% or more by weight, 6% or more by weight, 6.5% or more by weight, 7% or more by weight, 7.5% or more by weight, 8% or more by weight, 8.5% or more by weight, 9% or more by weight, or 9.5% or more by weight relative to the total weight of the first composition. Alternatively, the oil may be included in an amount of 10% or less by weight, 9.5% or less by weight, 9% or less by weight, 8.5% or less by weight, 8% or less by weight, 7.5% or less by weight, 7% or less by weight, 6.5% or less by weight, 6% or less by weight, 5.5% or less by weight, 5% or less by weight, 4.5% or less by weight, 4% or less by weight, or 3.5% or less by weight relative to the total weight of the first composition.
[0026] In one embodiment, the first component composition may further contain a polyol. In one embodiment, the polyol is not particularly limited as long as it is commonly used in cosmetic compositions, and may be selected from the group consisting of, for example, propylene glycol, dipropylene glycol, butylene glycol, glycerin, ethylhexylglycerin, 1,3-propanediol, isoprene glycol, pentylene glycol, 1,2-hexanediol, erythritol, xylitol, sorbitol, and mixtures thereof.
[0027] In one embodiment, the first agent composition may further contain humectants, UV absorbers, UV blockers, preservatives, osmotic pressure agents, buffers, stabilizers, surfactants, or antiseptics, and the first agent composition may further contain conventional auxiliary agents such as antioxidants, stabilizers, solubilizers, vitamins, pigments, and fragrances.
[0028] In one embodiment, the second agent composition may include at least one of a salt and a pH lowering agent, and water.
[0029] In one embodiment, the salt may be at least one selected from sodium chloride (NaCl) and magnesium sulfate (MgSO4).
[0030] In one embodiment, the salt may be present in an amount of 10 to 30% by weight relative to the total weight of the second composition. Specifically, the salt may be present in an amount of 10% or more by weight, 12% or more by weight, 14% or more by weight, 16% or more by weight, 18% or more by weight, 20% or more by weight, 22% or more by weight, 24% or more by weight, 26% or more by weight, or 28% or more by weight relative to the total weight of the second composition, or the salt may be present in an amount of 30% or less by weight, 28% or less by weight, 26% or less by weight, 24% or less by weight, 22% or less by weight, 20% or less by weight, 18% or less by weight, 16% or less by weight, 14% or less by weight, or 12% or less by weight relative to the total weight of the second composition.
[0031] In one embodiment, the pH lowering agent may be at least one selected from polyhydroxy acids (PHA) and alpha-hydroxy acids (AHA).
[0032] In one embodiment, the polyhydroxy acid may be gluconolactone.
[0033] In one embodiment, the alpha hydroxy acid (AHA) may be at least one selected from glycolic acid, lactic acid, and mandelic acid.
[0034] In one embodiment, the pH-lowering agent may be included in an amount of 10 to 30% by weight relative to the total weight of the second composition. Specifically, the pH-lowering agent may be included in an amount of 10% or more by weight, 12% or more by weight, 14% or more by weight, 16% or more by weight, 18% or more by weight, 20% or more by weight, 22% or more by weight, 24% or more by weight, 26% or more by weight, or 28% or more by weight relative to the total weight of the second composition. Alternatively, the pH-lowering agent may be included in an amount of 30% or less by weight, 28% or less by weight, 26% or less by weight, 24% or less by weight, 22% or less by weight, 20% or less by weight, 18% or less by weight, 16% or less by weight, 14% or less by weight, or 12% or less by weight relative to the total weight of the second composition.
[0035] In one embodiment, the first component composition may be included in an amount of 90 to 97% by weight relative to the total weight of the first and second components. Specifically, the first component composition may be included in an amount of 90% or more by weight, 91% or more by weight, 92% or more by weight, 93% or more by weight, 94% or more by weight, 95% or more by weight, or 96% or more by weight relative to the total weight of the first and second components, or the first component composition may be included in an amount of 97% or less by weight, 96% or less by weight, 95% or less by weight, 94% or less by weight, 93% or less by weight, 92% or less by weight, or 91% or less by weight relative to the total weight of the first and second components.
[0036] In one embodiment, the second component composition may be included in an amount of 3 to 10% by weight relative to the total weight of the first and second components. Specifically, the second component composition may be included in an amount of 3% or more by weight, 4% or more by weight, 5% or more by weight, 6% or more by weight, 7% or more by weight, 8% or more by weight, or 9% or more by weight relative to the total weight of the first and second components, or the second component composition may be included in an amount of 10% or less by weight, 9% or less by weight, 8% or less by weight, 7% or less by weight, 6% or less by weight, 5% or less by weight, or 4% or less by weight relative to the total weight of the first and second components.
[0037] The present invention can provide the following embodiments as one example.
[0038] A first embodiment can provide a cosmetic kit comprising a first component composition in the form of a liquid nanoemulsion containing wax and oil, and a second component composition in the form of a liquid second component composition containing at least one of a salt and a pH lowering agent, and water, wherein the first component composition and the second component composition are separated from each other.
[0039] The second embodiment provides a cosmetic kit in which, in the first embodiment, when the first component composition and the second component composition are mixed, the properties of the mixed composition change from a liquid lotion to a cream.
[0040] The third embodiment is one in which, in at least one of the first and second embodiments, the hardness of the creamy mixed composition is 10 to 70 gf / cm². 2 Therefore, we can provide cosmetic kits.
[0041] A fourth embodiment can provide a cosmetic kit in which, in at least one of the first to third embodiments, the wax is included in an amount of 5 to 20% by weight relative to the total weight of the first agent composition.
[0042] A fifth embodiment can provide a cosmetic kit in which, in at least one of the first to fourth embodiments, the oil is an ester-based oil.
[0043] The sixth embodiment provides a cosmetic kit in which, in at least one of the first to fifth embodiments, the oil is included in an amount of 3 to 10% by weight relative to the total weight of the first agent composition.
[0044] The seventh embodiment provides a cosmetic kit in which, in at least one of the first to sixth embodiments, the first component composition and the second component composition are mixed in a weight ratio of 15 to 25:1.
[0045] The eighth embodiment can provide a cosmetic kit in which, in at least one of the first to seventh embodiments, the salt is at least one selected from sodium chloride (NaCl) and magnesium sulfate (MgSO4).
[0046] The ninth embodiment provides a cosmetic kit in which, in at least one of the first to eighth embodiments, the pH lowering agent is at least one selected from polyhydroxy acids (PHAs) and alpha hydroxy acids (AHAs).
[0047] The tenth embodiment provides a cosmetic kit in which, in at least one of the first to ninth embodiments, the polyhydroxy acid (PHA) is gluconolactone.
[0048] The eleventh embodiment can provide a cosmetic kit in which, in at least one of the first to tenth embodiments, the alpha hydroxy acid (AHA) is at least one selected from glycolic acid, lactic acid, and mandelic acid.
[0049] The twelfth embodiment provides a cosmetic kit in which, in at least one of the first to eleventh embodiments, the first component composition is included in an amount of 90 to 97% by weight relative to the total weight of the first and second component compositions.
[0050] The 13th embodiment provides a cosmetic kit in which, in at least one of the first to 12 embodiments, the second component composition is included in an amount of 3 to 10% by weight relative to the total weight of the first and second components.
[0051] The 14th embodiment is a skincare method using a cosmetic kit according to at least one of the first to 13th embodiments, The aforementioned method, A step of applying the first component composition of at least one cosmetic kit from the first to the thirteenth embodiment to the skin, then applying the second component composition to the skin and mixing them by rubbing, or The steps include: mixing the first component composition and the second component composition of at least one cosmetic kit from the first to the thirteenth embodiment and then applying it to the skin; It is possible to provide a skincare method that includes these features.
[0052] The 15th embodiment provides a method, in which, in the 14th embodiment, when the first component composition and the second component composition are mixed, the properties of the mixed composition change from a liquid lotion to a cream.
[0053] The sixteenth embodiment can provide a method in which, in at least one of the fourteenth and fifteenth embodiments, the first composition and the second composition are mixed in a weight ratio of 15 to 25:1.
[0054] The content of the present invention will be described in more detail below with reference to examples and test examples. However, such examples and test examples are provided only to aid in understanding the content of the present invention, and the scope of the rights of the present invention is not limited by such examples and test examples. Modifications, substitutions, and insertions that are commonly known in the industry may also be made, and these are also included within the scope of the present invention.
[0055] [Manufacturing Example] Manufacturing of the first and second component compositions 1. Manufacturing of the first component composition The first component composition was prepared using the composition and content (weight %) relative to the total weight of the first and second component compositions as shown in Table 1 below. Specifically, the oil / wax components of cetyl ester, polyglyceryl-3 methyl glucose distearate, and dicaprylyl carbonate were heated to 60-70°C, and the remaining betaine, sodium stearoyl glutamate, glycerin, butylene glycol, ethylhexylglycerin, 1,2-hexanediol, and water were heated to 70°C. After that, the oil / wax components were first emulsified by homomixing at 5000 rpm, and then high-pressure emulsification was performed three times at 1000 bar using a high-pressure emulsifier (Microfluidizer, manufactured by Songwon Systems Co., Ltd.) to produce each first component composition.
[0056] [Table 1]
[0057] 2. Manufacture of the second component composition The second component composition was prepared by mixing the components according to the composition and content (weight %) of the first and second component compositions relative to their total weight, as shown in Table 2 below.
[0058] [Table 2]
[0059] [Examples and Comparative Examples] The first and second compositions from the above manufacturing example were combined according to the combinations shown in Table 3 (mixing weight ratio 19:1), and the hardness of the compositions after mixing (after rubbing by hand) was evaluated using a Sun Rheometer. The results are shown in Table 3.
[0060] [Table 3]
[0061] As shown in Table 3, in Examples 1 to 5, which involve mixing the first component composition of Production Examples 1 to 3 and the second component composition of Production Examples 6 to 8 according to one embodiment of the present invention, a light cream formulation (hardness 10 gf / cm²) is obtained. 2 ) A rich cream formulation (hardness 65 gf / cm²) 2 A stable change in properties was obtained. On the other hand, when using the first agent compositions of Production Examples 4 and 5, in which the wax and oil content exceeded the range of the present invention, it was confirmed that the stability of the first agent composition was poor, resulting in phase separation (Production Example 4) or a change to a creamy state without maintaining a liquid state (Production Example 5).
[0062] [Test Example 1] Evaluation of changes in properties The changes in the properties of the compositions were visually observed immediately after adding the second component composition of Production Example 6 (weight ratio 19:1) to the first component composition of Production Example 1, and again after physical mixing (rubbing by hand). The results are shown in Figures 1 and 2.
[0063] As shown in Figure 1, the first component composition alone is a liquid lotion formulation (left), but when the second component composition is added to the first component composition, it was confirmed that the properties immediately change to those of a cream formulation (right).
[0064] Furthermore, as shown in Figure 2, when each composition was rubbed in by hand five times, it was confirmed that the first component alone (left) showed almost no change in properties. In contrast, it was confirmed that a stable cream formulation was formed by simply adding the second component to the first component and rubbing it in just five times.
[0065] [Test Example 2] Evaluation of changes in properties upon skin application The properties of the first component composition of Production Example 1 were visually observed immediately after dropping two drops onto the back of the hand (Figure 3A), after rubbing it in five times (Figure 3B), and after rubbing it in 20 times (Figure 3C). The results are shown in Figures 3A to 3C.
[0066] As shown in Figures 3A to 3C, with the first component composition alone, there was almost no change in properties after rubbing it in 5 times, and it tended to become creamy only after rubbing it in about 20 times. Even in this case, it was confirmed that a stable cream formulation was not formed, and the properties changed to those of a lotion-like formulation.
[0067] On the other hand, the changes in properties were visually observed immediately after adding the second component composition of Production Example 6 to the first component composition (weight ratio: 19:1) (Figure 4B), after rubbing it in by hand five times (Figure 4C), and after rubbing it in by hand ten times (Figure 4D), compared with the first component composition of Production Example 1 alone (Figure 4A). The results are shown in Figures 4A to 4D.
[0068] As shown in Figures 4A to 4D, when the second component composition was added to the first component composition, a change in properties immediately began to occur, transforming it into a cream formulation (Figure 4B). It was confirmed that a soft cream formulation was stably formed by rubbing it in 5 and 10 times respectively (Figures 4C and 4D).
Claims
1. A first component composition in the form of a liquid nanoemulsion containing wax and oil, A liquid second component composition comprising at least one salt and a pH lowering agent, and water, A cosmetic kit in which the first component composition and the second component composition are separated from each other.
2. The cosmetic kit according to claim 1, wherein when the first component composition and the second component composition are mixed, the properties of the mixed composition change from a liquid lotion to a cream.
3. The hardness of the aforementioned creamy mixed composition is 10 to 70 gf / cm². 2 The cosmetic kit according to claim 2.
4. The cosmetic kit according to claim 1, wherein the wax is contained in an amount of 5 to 20% by weight relative to the total weight of the first component composition.
5. The cosmetic kit according to claim 1, wherein the oil is an ester-based oil.
6. The cosmetic kit according to claim 1, wherein the oil is contained in an amount of 3 to 10% by weight relative to the total weight of the first agent composition.
7. The cosmetic kit according to claim 1, wherein the first component composition and the second component composition are mixed in a weight ratio of 15 to 25:
1.
8. The salts are sodium chloride (NaCl) and magnesium sulfate (MgSO4). 4 The cosmetic kit according to claim 1, wherein the kit is at least one selected from the following:
9. The cosmetic kit according to claim 1, wherein the pH-lowering agent is at least one selected from polyhydroxy acids (PHAs) and alpha hydroxy acids (AHAs).
10. The cosmetic kit according to claim 9, wherein the polyhydroxy acid (PHA) is gluconolactone.
11. The cosmetic kit according to claim 9, wherein the alpha hydroxy acid (AHA) is at least one selected from glycolic acid, lactic acid, and mandelic acid.
12. The cosmetic kit according to claim 1, wherein the first component composition is included in an amount of 90 to 97% by weight relative to the total weight of the first component composition and the second component composition.
13. The cosmetic kit according to claim 1, wherein the second component composition is contained in an amount of 3 to 10% by weight relative to the total weight of the first component composition and the second component composition.
14. A skincare method using a cosmetic kit according to any one of claims 1 to 13, The aforementioned method, A step of applying the first component composition of the cosmetic kit according to any one of claims 1 to 13 to the skin, then applying the second component composition to the skin and mixing them by rubbing, or A step of applying to the skin a mixture of the first and second components of a cosmetic kit according to any one of claims 1 to 13, A skincare method that includes [the following features].
15. The method according to claim 14, wherein when the first agent composition and the second agent composition are mixed, the properties of the mixed composition change from a liquid lotion to a cream.
16. The method according to claim 14, wherein the first agent composition and the second agent composition are mixed in a weight ratio of 15 to 25:1.