Cosmetic composition for improving body cellulite

Abstract

The present invention relates to a cosmetic composition, and more specifically, to an external cosmetic composition and its formulation intended for improving body cellulite, comprising a mixed extract of coffee beans (Coffea Arabica Seed), guarana seeds (Paullinia Cupana Seed), kola tree seeds (Cola Acuminata Seed), grape seeds (Vitis Vinifera Seed), and Mexican chia seeds (Salvia Hispanica Seed).

Description

Technology Field

[0001] The present invention relates to a cosmetic composition, and more specifically, to an external cosmetic composition and its formulation intended for improving body cellulite, comprising a mixed extract of coffee beans (Coffea Arabica Seed), guarana seeds (Paullinia Cupana Seed), kola tree seeds (Cola Acuminata Seed), grape seeds (Vitis Vinifera Seed), and Mexican chia seeds (Salvia Hispanica Seed). Background Technology

[0002] Cellulite refers to the uneven and bumpy appearance commonly observed on the skin of body areas such as the thighs, buttocks, and abdomen. It is generally perceived as a cosmetic concern rather than a medical condition, and it occurs more frequently in women.

[0003] This is related to biological factors such as the structural characteristics of the subcutaneous fat layer, hormonal environment, and differences in the arrangement of fibrous septa, and it is known that the formation process involves a complex interplay of hypertrophy and overproliferation of adipocytes, abnormal remodeling of the extracellular matrix, edematous changes due to reduced microcirculation, and the accumulation of chronic low-intensity inflammation and oxidative stress.

[0004] Various approaches have been proposed to remove such cellulite, including physical massage and mechanical methods such as rollers and suction pressure devices, energy-based procedures such as radio waves, lasers, and focused ultrasound, lifestyle management including exercise and dietary control, and the application of topical cosmetics.

[0005] Among these, topical cosmetics are suitable for daily care due to their non-invasiveness and ease of use; however, balancing the selection and combination of active ingredients, skin reachability, formulation stability, user experience, and safety becomes a key challenge.

[0006] In terms of ingredients, methylxanthine-based substances that stimulate lipolytic signaling pathways, polyphenols that are expected to aid circulation and provide antioxidant effects, and lipid components and mucilaginous polysaccharides that contribute to barrier strengthening and moisture retention have been widely considered. However, compositions centered on a single ingredient have limited mechanisms of action or pose a risk of skin irritation when applied in high concentrations, polyphenols require management of oxidative stability, and fine adjustment of solvent systems, emulsification systems, viscosity, and application sensation is required to enhance the skin penetration of active ingredients.

[0007] Against this backdrop, there is a continuously expanding demand for cosmetic compositions that combine plant-derived ingredients with complementary biological activities to simultaneously target multiple mechanisms, while also satisfying safety, sensory satisfaction, formulation diversity, and quality consistency between batches for daily use. Prior art literature

[0008] Korean Registered Patent Publication No. 10-1358718 (Registered Jan. 28, 2014) "Cosmetic composition containing castor oil extract and Sophora japonica extract as active ingredients and having a cellulite-improving effect" Korean Registered Patent Publication No. 10-1580962 (Registered Nov. 22, 2015) "Cosmetic composition for cellulite reduction containing fermented rice bran extract and bitter orange extract" The problem to be solved

[0009] In accordance with the above requirements, the present invention aims to provide a cosmetic composition capable of providing an improvement effect on body cellulite by including a mixed extract prepared by extracting a mixture of coffee beans, guarana seeds, kola tree seeds, grape seeds, and Mexican chia seeds as an active ingredient. means of solving the problem

[0010] To achieve the above objectives, the present invention provides a cosmetic composition for improving body cellulite, characterized by comprising a mixed extract prepared by extracting a mixture of coffee beans (Coffea Arabica Seed), guarana seeds (Paullinia Cupana Seed), kola tree seeds (Cola Acuminata Seed), grape seeds (Vitis Vinifera Seed), and Mexican chia seeds (Salvia Hispanica Seed).

[0011] In addition, the above mixed extract is characterized by being prepared by extracting a mixture consisting of 0.1 to 99.6% by weight of coffee beans, 0.1 to 99.6% by weight of guarana seeds, 0.1 to 99.6% by weight of kola nuts, 0.1 to 99.6% by weight of grape seeds, and 0.1 to 99.6% by weight of Mexican chia seeds.

[0012] Furthermore, the above mixed extract is characterized by being prepared by extracting a mixture consisting of 10 to 30 weight% coffee beans, 10 to 30 weight% guarana seeds, 10 to 30 weight% kola nuts, 10 to 30 weight% grape seeds, and 10 to 30 weight% Mexican chia seeds.

[0013] In addition, the cosmetic composition of the present invention is characterized by providing a body cellulite improvement effect.

[0014] Meanwhile, the above cosmetic composition is characterized by being formulated into a toner, skin, lotion, cream, foundation, essence, gel, pack, emulsified sunscreen cream, emulsified foundation, emulsified makeup base, oil cake foundation, two-way cake, or powder pact. Effects of the invention

[0015] The cosmetic composition for improving body cellulite according to the present invention includes a mixed extract prepared by extracting a mixture of coffee beans, guarana seeds, kola nuts, grape seeds, and Mexican chia seeds as an active ingredient, thereby providing an effect of improving body cellulite and having good physicochemical stability, making it easy to formulate and thus providing industrial utility value. Brief explanation of the drawing

[0016] FIG. 1 is a flowchart illustrating a method for preparing a cosmetic composition of the present invention. Specific details for implementing the invention

[0017] The following detailed descriptions relating to the present invention refer to the accompanying drawings, which are embodiments in which the present invention may be practiced and are illustrated as examples of such embodiments. These embodiments are described in detail to sufficiently enable those skilled in the art to practice the present invention. It should be understood that various embodiments of the present invention are different but need not be mutually exclusive. For example, specific shapes, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the present invention in relation to one embodiment. Furthermore, it should be understood that the location or arrangement of individual components within each described embodiment may be changed without departing from the spirit and scope of the present invention.

[0018] Accordingly, the following detailed description is not intended to be taken in a limiting sense, and the scope of the invention is limited only by the appended claims, including all equivalents to those claimed therein, provided they are properly described. Similar reference numerals in the drawings refer to the same or similar functions across various aspects.

[0019] The terms used in this invention have been selected based on currently widely used general terms, taking into account their functions within the invention; however, these terms may vary depending on the intent of those skilled in the art, case law, the emergence of new technologies, etc. Additionally, in specific cases, terms have been arbitrarily selected by the applicant, and in such cases, their meanings will be described in detail in the relevant description of the invention. Therefore, the terms used in this invention should be defined not merely by their names, but based on their meanings and the overall content of the invention.

[0020] In the present invention, when a part is described as "comprising" a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components.

[0022] The cosmetic composition for improving body cellulite according to the present invention will be described in detail below.

[0023] At this time, it is clarified that the body cellulite improvement in the present invention is not for the medical use of directly lowering the height of cellulite, but rather for homogeneously improving the skin surface so that the boundary line of the cellulite-forming area becomes indistinct, thereby preventing cellulite from being visually and aesthetically prominent.

[0025] The cosmetic composition for improving body cellulite according to the present invention comprises a mixed extract prepared by extracting a mixture of coffee beans (Coffea Arabica Seed), guarana seeds (Paullinia Cupana Seed), kola tree seeds (Cola Acuminata Seed), grape seeds (Vitis Vinifera Seed), and Mexican chia seeds (Salvia Hispanica Seed).

[0026] The above coffee bean refers to a green bean, which is an oval seed with a longitudinal groove in the center, obtained by removing the pericarp, mucilage, parchment (inner pericarp), and silver skin from the seed of the coffee tree (Coffea arabica).

[0027] These coffee beans contain caffeine along with methylxanthines such as theobromine and theophylline, chlorogenic acids, and trigonelline. Caffeine and methylxanthines aid in signaling fat breakdown and support circulation, while chlorogenic acids and trigonelline contribute to cellulite improvement by reducing oxidative stress and edema tendencies through their antioxidant action.

[0028] The above guarana seeds refer to the seeds of the guarana (Paullinia cupana), which are dark brown, round, or oval seeds that are revealed along with a white aril when the mature pericarp opens.

[0029] In addition to caffeine, these guarana seeds are rich in concentrated tannin-centered polyphenols, particularly catechins, epicatechins, and proanthocyanidins, accompanied by small amounts of saponins. Concentrated tannins and proanthocyanidins support microcirculation, tissue hydration, and edema tendencies through antioxidant and capillary protective actions, and, together with caffeine, contribute to signaling for fat breakdown, thereby contributing to the improvement of body cellulite.

[0030] The above kola tree seeds refer to the seeds of the kola tree (Cola acuminata), which are brown, hard seeds separated from mature fruit with the outer skin and flesh removed.

[0031] These kola nuts contain tannic high-molecular-weight polyphenols, pigment components known as kola red, plant sterols such as β-sitosterol and kaempesterol, and triterpenoid compounds. The tannic fraction and pigment polyphenols contribute to alleviating visible swelling and the prominence of uneven skin texture through antioxidant effects and support for the capillary environment, while plant sterols and triterpenoids help improve skin barrier lipid balance and elasticity, which can contribute to the improvement of body cellulite.

[0032] The above grape seed refers to a hard, oval seed obtained by removing the flesh and skin of the grape (Vitis vinifera).

[0033] These grape seeds contain neutral lipids with linoleic acid as the main component, phospholipids, and phenolic acids such as gallic acid derivatives. The linoleic acid-centered lipid components help maintain lipid balance and moisture in the skin barrier, alleviating surface roughness and tightness, while phenolic acids inhibit the deterioration of appearance caused by oxidative stress, contributing to the alleviation of the prominence of body cellulite.

[0034] The above Mexicanchia seeds refer to the seeds of Mexicanchia (Salvia hispanica), which are small oval seeds that form a sticky membrane on the outer layer when they come into contact with moisture.

[0035] These Mexican chia seeds are rich in alpha-linolenic acid and contain mucilage, a water-soluble viscous polysaccharide, along with protein fractions including arginine. Alpha-linolenic acid helps balance skin lipids and alleviate sensitivity, while mucilage forms a moisturizing film on the surface to reduce surface irregularities caused by dryness, and the protein fractions contribute to improving elasticity and texture, thereby contributing to the improvement of body cellulite.

[0036] The coffee beans, guarana seeds, kola tree seeds, grape seeds, and Mexican chia seeds, which are components of the mixture of the present invention, may be used in an unground, dried state to prevent destruction of active ingredients and to prevent spoilage and rancidity during storage.

[0038] At this time, the mixed extract of the present invention may be prepared by extracting a mixture consisting of 0.1 to 99.6% by weight of coffee beans, 0.1 to 99.6% by weight of guarana seeds, 0.1 to 99.6% by weight of kola nuts, 0.1 to 99.6% by weight of grape seeds, and 0.1 to 99.6% by weight of Mexican chia seeds.

[0039] Furthermore, it is preferable to produce a mixture composed of 10 to 30 weight% coffee beans, 10 to 30 weight% guarana seeds, 10 to 30 weight% kola nuts, 10 to 30 weight% grape seeds, and 10 to 30 weight% Mexican chia seeds.

[0040] The composition ratio of these mixtures is intended to ensure a balance of efficacy, irritancy, process, and formulation stability as a matter of critical significance. If the ratio is higher or lower than the above range, the balance of complementary functions may be disrupted.

[0041] For example, if the coffee bean content is less than 10% by weight, the signaling assistance for fat breakdown and the antioxidant assistance may be weakened, which could slow down the overall efficacy, and if it exceeds 30% by weight, the color and aroma may be excessive, reducing the pleasant taste, and the increase in solid content may lead to increased turbidity and a greater possibility of sedimentation.

[0042] If the guarana seeds are less than 10% by weight, the supply of key components necessary for continuous signal support is insufficient, and if they exceed 30% by weight, the increased tannic fraction causes a noticeable shrinkage and dryness, which can increase the sensation of irritation, and the processability is reduced due to increased turbidity and viscosity fluctuations of the solution.

[0043] If the kola nut seeds are less than 10% by weight, the range of complementary action narrows and the balance may be disrupted, and if they exceed 30% by weight, the emulsion stability decreases and the residue increases due to color intensification and increased viscosity.

[0044] If the grape seed content is less than 10% by weight, the lipid content reinforcement is insufficient, which may result in a noticeable dry surface, and if it exceeds 30% by weight, the oil content is excessive, leading to increased greasiness, delayed absorption of the coating, and a higher risk of separation during long-term storage.

[0045] If Mexican chia seeds are less than 10% by weight, the formation of a moisturizing film by the viscous component is insufficient, so the surface smoothing effect is weakened, and if they exceed 30% by weight, the gel network becomes excessive, increasing stickiness and peeling, and the formulation stability may be reduced due to the hydration imbalance of the solid components.

[0046] In addition, excessive or insufficient mixing of individual components can affect the elution balance and solid content management during the extraction stage, potentially causing process problems such as reduced filtration efficiency, a sharp increase in viscosity during concentration, residual sedimentation, and discoloration.

[0047] More specifically, it is most desirable to mix equal amounts of coffee beans, guarana seeds, kola seeds, grape seeds, and Mexican chia seeds.

[0049] Additionally, the mixed extract of the present invention may be prepared by fermenting the mixture with a Lactobacillus genus fermentation strain at 30 to 35°C for 1 to 3 days and then extracting.

[0050] Here, the Lactobacillus fermentation strain decomposes high molecular weight antioxidant components, such as flavonoids and tannins, contained in the mixture into low molecular weight forms, thereby improving absorption rates into the skin and hair and contributing to increased bioavailability. Additionally, by generating organic acids such as lactic acid and acetic acid during the fermentation process, it can maintain the pH of the composition within a stable weakly acidic range. Preferably, the Lactobacillus fermentation strain of the present invention is Lactobacillus gasseri.

[0051] The above-mentioned Lactobacillus gasseri is a lactic acid bacterium applicable to the fields of cosmetics and fermented foods. It possesses enzymatic activities of beta-glucosidase, esterase, and proteolytic systems, proliferates stably at 30 to 35°C and pH 4 to 6, and produces mainly lactic acid and a small amount of acetic acid during fermentation. These metabolic characteristics partially hydrolyze flavonoid glycosides and tannin-containing conjugates to increase the proportion of low molecular weight phenols and free components, and increase the proportion of low molecular weight amino acids and short peptides, thereby assisting in the solubilization and skin reach of active ingredients within the mixture. Simultaneously, the generated organic acids maintain the pH of the composition at a slightly acidic level, contributing to suppressing concerns about irritation and the increase in turbidity during processing.

[0052] At this time, Lactobacillus gasseri in the mixture in the form of a sterile suspension of 1 × 10⁶ 6 ~ 1×10 7 It is desirable to inoculate at CFU / mL to achieve reproducible fermentation within 1 to 3 days at 30 to 35°C through initial dominance and to reduce the risk of contamination, while preventing sensory impairment or compromise of formulation stability due to excessive acid and alcohol production.

[0054] This mixed extract can be prepared by extracting the mixture with one or more extraction solvents selected from the group consisting of water, alcohols having 1 to 4 carbon atoms, propanediol, methylpropanediol, glycerin, butylene glycol, pentylene glycol, propylene glycol, ethylhexylglycerin, and hexanediol, and known extraction methods such as hot water extraction and ultrasonic extraction may be applied, which will be explained through the manufacturing method described below.

[0055] FIG. 1 is a flowchart illustrating a method for preparing a cosmetic composition of the present invention.

[0056] Mixture preparation step (S10) : Coffee beans, guarana seeds, kola tree seeds, grape seeds, and Mexican chia seeds are mixed in amounts of 0.1 to 99.7% by weight, respectively.

[0057] Suitablely, coffee beans, guarana seeds, kola tree seeds, grape seeds, and Mexican chia seeds are mixed in an amount of 10 to 30 weight percent each.

[0058] Most preferably, coffee beans, guarana seeds, kola seeds, grape seeds, and Mexican chia seeds are mixed in equal weight ratios.

[0059] Fermentation stage (S20) : 1×10 Lactobacillus fermentation strains in the mixture 6 ~ 1×10 7 Inoculate with CFU / mL and culture at 30–35°C for 1–3 days.

[0060] Preferably, Lactobacillus gasseri is applied, and purified water may be added as a buffer solution to maintain the activity of the fermentation strain and to accept active substances such as organic acids produced.

[0061] In addition, after the fermentation step (S20), a killing step (S21) may be included in which the fermented mixture is heated at 80 to 90°C for 10 to 30 minutes to kill the fermentation strains.

[0062] Extraction step (S30) : The above mixture or the fermented or strain-killed mixture may be extracted for 12 to 24 hours at 50 to 60°C with one or more extraction solvents selected from the group consisting of water, alcohol having 1 to 4 carbon atoms, propanediol, methylpropanediol, glycerin, butylene glycol, pentylene glycol, propylene glycol, ethylhexylglycerin, and hexanediol, and it is preferable to extract for 18 hours at 60°C.

[0063] At this time, it is preferable to use one or more solvents among propanediol, butylene glycol, and glycerin, either alone or in combination. This is because these extraction solvents are low-irritation solvents and moisturizers widely used in the extraction of natural products, and are effective in increasing the stability of active ingredients and extraction efficiency.

[0064] Specifically, propanediol has low skin irritation and excellent skin affinity, while butylene glycol provides high solubility and moisturizing function, which can improve the stability of the extracted active ingredients and the feel on the skin. Glycerin has high moisture retention capacity and antioxidant properties, contributing to improving the quality and storage stability of the extract.

[0065] After this extraction step (S30), a filtration step (S31) to remove solids may be performed, and subsequently, depending on what formulation the cosmetic composition is to be formulated into in the formulation step (S40), a reduced-pressure concentration step (S32) may be included to adjust the concentration and viscosity.

[0066] Formulation step (S40) The cosmetic composition of the present invention may be formulated into any one of the product categories selected from the group consisting of toner, skin, lotion, cream, foundation, essence, gel, pack, emulsified sunscreen cream, emulsified foundation, emulsified makeup base, oil cake foundation, two-way cake, or powder pact, and provided to users to ensure industrial utility value, and the formulation may be carried out according to known methods.

[0068] The effects of the cosmetic composition for improving body cellulite according to the present invention will be examined in detail below through examples, comparative examples, and experimental examples.

[0070] Example 1. Example prepared through a fermentation step (S20).

[0071] The experimental composition of Example 1 was prepared according to the following manufacturing process.

[0072] Mixture preparation step (S10): Coffee beans, guarana seeds, kola tree seeds, grape seeds, and Mexican chia seeds in a dried raw state were prepared and mixed in equal weight ratios to prepare a mixture.

[0073] Fermentation step (S20): 20 volume% of purified water is added to the above mixture, and then 10 Lactobacillus gasseri is added. 7 Inoculated with an initial cell concentration of CFU / mL and fermented at 35℃ for 3 days.

[0074] Killing step (S21): Afterwards, the fermentation strains were killed by heating at 80°C for 20 minutes.

[0075] Extraction step (S30): An extraction solvent mixed in equal amounts of propanediol, butylene glycol, and glycerin was added to the fermented mixture at 200 volume% relative to the fermented mixture, and then extracted at 60°C for 18 hours to prepare a mixed extract.

[0076] Filtration step (S31): The mixed extract was filtered with a 200 mesh filter to remove solids.

[0078] Example 2. Example manufactured without undergoing the fermentation step (S20)

[0079] The experimental composition of Example 2 was prepared by excluding the fermentation step (S20) and the death step (S21) from the manufacturing process of Example 1 above.

[0081] Comparative Example 1. An example in which coffee beans were excluded from the mixture and the fermentation step (S20) was performed.

[0082] In the manufacturing process of Example 1 above, the mixture preparation step (S10) was changed to a process of preparing dried raw guarana seeds, kola tree seeds, grape seeds, and Mexican chia seeds and mixing them in equal weight ratios to prepare the mixture, thereby preparing the experimental composition of Comparative Example 1.

[0084] Comparative Example 2. An example in which guarana seeds were excluded from the mixture and the fermentation step (S20) was performed.

[0085] In the manufacturing process of Example 1 above, the mixture preparation step (S10) was changed to a process of preparing dried raw coffee beans, kola tree seeds, grape seeds, and Mexican chia seeds and mixing them in equal weight ratios to prepare the mixture, thereby preparing the experimental composition of Comparative Example 2.

[0087] Comparative Example 3. An example in which the kola tree seeds were excluded from the mixture and the fermentation step (S20) was performed.

[0088] In the manufacturing process of Example 1 above, the mixture preparation step (S10) was changed to a process of preparing coffee beans, guarana seeds, grape seeds, and Mexican chia seeds in a dried raw state and mixing them in equal weight ratios to prepare the mixture, thereby preparing the experimental composition of Comparative Example 3.

[0090] Comparative Example 4. An example in which grape seeds were excluded from the mixture and the fermentation step (S20) was performed.

[0091] The experimental composition of Comparative Example 4 was prepared by changing the mixture preparation step (S10) in the manufacturing process of Example 1 above to a process of preparing dried raw coffee beans, guarana seeds, kola tree seeds, and Mexican chia seeds and mixing them in equal weight ratios to prepare the mixture.

[0093] Comparative Example 5. An example in which Mexican chia seeds were excluded from the mixture and the fermentation step (S20) was performed.

[0094] The experimental composition of Comparative Example 5 was prepared by changing the mixture preparation step (S10) in the manufacturing process of Example 1 above to a process of preparing coffee beans, guarana seeds, kola tree seeds, and grape seeds in a dried raw state and mixing them in equal weight ratios to prepare the mixture.

[0096] Comparative Example 6. Example of excluding coffee beans from the mixture and not undergoing the fermentation step (S20).

[0097] The experimental composition of Comparative Example 6 was prepared by excluding the fermentation step (S20) and the death step (S21) from the manufacturing process of Comparative Example 1 above.

[0099] Comparative Example 7. Example of excluding guarana seeds from the mixture and not undergoing the fermentation step (S20).

[0100] The experimental composition of Comparative Example 7 was prepared by excluding the fermentation step (S20) and the death step (S21) from the manufacturing process of Comparative Example 2 above.

[0102] Comparative Example 8. Example of excluding kola tree seeds from the mixture and not undergoing the fermentation step (S20).

[0103] The experimental composition of Comparative Example 8 was prepared by excluding the fermentation step (S20) and the death step (S21) from the manufacturing process of Comparative Example 3 above.

[0105] Comparative Example 9. Example of a mixture that excludes grape seeds and does not undergo a fermentation step (S20).

[0106] The experimental composition of Comparative Example 8 was prepared by excluding the fermentation step (S20) and the death step (S21) from the manufacturing process of Comparative Example 4 above.

[0108] Comparative Example 10. Example of excluding Mexican chia seeds from the mixture and not undergoing the fermentation step (S20).

[0109] The experimental composition of Comparative Example 10 was prepared by excluding the fermentation step (S20) and the death step (S21) from the manufacturing process of Comparative Example 5 above.

[0111] The experimental compositions of Examples 1 and 2 and Comparative Examples 1 to 10 prepared as described above were stabilized at 25°C for 5 hours, and then used as experimental samples without a separate formulation process to confirm the exact effect.

[0112] The subjects were adult women with cellulite grades 2 to 3 who had no other metabolic abnormalities. A standard 4×4 cm area on the outer thigh where cellulite had developed was designated, and each experimental group's sample was applied twice a day for 8 weeks. On the opposite 4×4 cm area on the outer thigh, an equal amount of an extraction solvent mixed in equal amounts of propanediol, butylene glycol, and glycerin, which did not contain active ingredients, was applied as a control.

[0114] Experimental Example 1. Standardized image analysis based on boundary visibility index

[0115] 1) Experimental Method

[0116] The experiment was conducted using the cross-polarization mode of the VISIA-CR cross-polarization digital imaging system, and the in-equipment exposure and white balance were fixed at the reference point and maintained at the same settings throughout the previous visit.

[0117] The subjects took three repeated images of the same area before application and at week 8, and as described above, the experimental group sample was applied to one thigh lesion and the control group sample to the opposite thigh lesion using a left-right split design.

[0118] At this time, the raw image was converted to CIELAB using only the L channel, and after reducing noise with low-frequency background correction and a median filter, an edge map was generated by applying Canny edge detection, and noise with a length of less than 5 pixels was excluded.

[0119] The boundary visibility index EVI is defined as the average gradient magnitude of edge pixels in the observation area normalized to the average local luminance, and the positional difference between viewpoints is corrected by phase correlation matching with the reference viewpoint image.

[0120] The final evaluation calculated the percentage change in EVI from week 0 of the experimental site at week 8, and reflected the result only if the percentage change in the control group application site for each subject was within ±5%.

[0121] Here, the boundary visibility index is a relative index normalized by local luminance to the average slope magnitude of boundary lines detected in the same observation area, and a lower value is interpreted as indicating that the visual sharpness of the uneven boundary is softened.

[0123] 2) Experimental Results

[0124] The experimental results are shown in Table 1 below.

[0125] Sample EVI(0 weeks, au) EVI (8 weeks, au) Rate of change (%) Example 1 2.08 1.15 -44.74 Example 2 2.03 1.29 -36.45 Comparative Example 1 1.98 1.42 -28.28 Comparative Example 2 2.12 1.52 -28.30 Comparative Example 3 2.05 1.53 -25.37 Comparative Example 4 2.14 1.65 -22.90 Comparative Example 5 2.00 1.50 -25.01 Comparative Example 6 2.06 1.75 -15.05 Comparative Example 7 1.195 1.67 -14.36 Comparative Example 8 2.18 1.92 -11.93 Comparative Example 9 2.10 1.88 -10.48 Comparative Example 10 2.04 1.94 -13.73

[0126] As shown in Table 1, Example 1 showed the best reduction in EVI, and it appears that the surface contrast decreased more rapidly compared to Example 2 because the flavonoids and tannin glycosides were converted to low molecular weight forms through the fermentation process and the weak acidity was maintained due to lactic acid production.

[0127] It appears that Comparative Examples 1 to 5, which include a fermentation process, showed superior experimental results compared to Comparative Examples 6 to 10, which do not include a fermentation process, through this mechanism.

[0128] Meanwhile, Examples 1 and 2 show a tendency to exhibit a superior reduction in EVI compared to a comparative group in which some raw materials were excluded, suggesting that unexpected complementary interactions between the components were exhibited in the combination of coffee beans, guarana seeds, kola tree seeds, grape seeds, and Mexican chia seeds according to the present invention.

[0130] Experimental Example 2. Spatial frequency analysis based on 3D surface profile

[0131] 1) Experimental Method

[0132] Measurements were performed using the fringe projection type 3D non-contact surface profiler PRIMOS 5.0 (GFMesstechnik GmbH, Germany), and optical settings such as projection grid frequency, camera exposure, and measurement distance (fixed jig) were fixed at the reference point and maintained identically throughout the visit.

[0133] The subjects measured the same area three times before application and at week 8, and as described above, the experimental group sample was applied to one thigh lesion and the control group sample was applied to the opposite thigh lesion.

[0134] At this time, the acquired height map z(x,y) was subjected to DC component removal and low-frequency drift correction, and the power spectrum density was calculated using a 2D Fourier transform. The band power ratio (FBR), calculated by dividing the integral value of the 2 to 10 mm wavelength range by the total power, was used as an indicator.

[0135] FBR indicates the relative prominence of the orange peel pattern, and a lower value is interpreted as a softened surface pattern contrast.

[0136] The final evaluation calculated the percentage change in FBR from week 0 of the experimental site at week 8, and reflected the result only if the rate of change in FBR of the control group application site for each subject was within ±5%.

[0138] 2) Experimental Results

[0139] The experimental results are shown in Table 2 below.

[0140] Sample FBR(0 shares, %) FBR(8 weeks, %) Rate of change (%) Example 1 34.21 20.45 -40.20 Example 2 33.19 21.89 -33.86 Comparative Example 1 31.81 23.03 -27.57 Comparative Example 2 35.01 25.62 -26.91 Comparative Example 3 32.46 24.60 -24.19 Comparative Example 4 36.10 27.73 -23.17 Comparative Example 5 31.95 24.35 -23.79 Comparative Example 6 33.53 28.61 -14.51 Comparative Example 7 30.29 26356 -14.05 Comparative Example 8 37.22 33.01 -11.26 Comparative Example 9 34.78 31.12 -10.44 Comparative Example 10 32.78 28.99 -11.62

[0141] As shown in Table 2, the fact that the reduction in FBR in Example 1 is greater than in Example 2 appears to be due to the low molecular weight phenol and organic acid generated and increased by fermentation enhancing the continuity of the thin moisturizing, viscoelastic film formed immediately after application, thereby filtering the 2 to 10 mm intermediate wavelength range.

[0142] For the same reason, Comparative Examples 1 to 5 containing fermentation were superior to Comparative Examples 6 to 10 not containing fermentation, which is believed to be because fermentation stabilized the surface pH of the keratin to a weakly acidic state, inducing surface rearrangement of the components and selectively attenuating the intensity of the frequency components.

[0143] In addition, it is predicted that the greater improvement in Examples 1 and 2 compared to the comparative example group, excluding some raw materials, is due to each raw material sharing the attenuation role in different wavelength ranges, such as grape seed linoleic acid-based lipids increasing the flexibility of the stratum corneum to smooth out intermediate wavelength displacement, Mexican chia mucilage immediately dulling the sharpness of fine irregularities, and kola nut sterols / triterpenoids assisting in barrier organization to maintain the uniformity of the formed film.

[0145] In summary, the cosmetic composition for improving body cellulite according to the present invention includes a mixed extract of coffee beans, guarana seeds, kola nuts, grape seeds, and Mexican chia seeds, which can improve the appearance by reducing the visual contrast of cellulite and making it look smooth.

[0146] The EVI (boundary visibility index) of Experimental Example 1 is an indicator that directly reflects the clarity and brightness contrast of the uneven boundary line, and the lower the value, the blurrier the boundary becomes, making the prominent boundary line less noticeable.

[0147] The FBR (2 ~ 10 mm spatial band power ratio) of Experimental Example 2 is a numerical representation of the proportion of the mid-wavelength surface pattern characteristic of orange peel, and as the value is lower, the regularity and prominence of the repetitive uneven pattern on the skin decrease.

[0148] In other words, the fact that EVI and FBR are simultaneously formed in a favorable direction upon the application of the cosmetic composition of the present invention serves as objective indicators supporting improvements in the cosmetic field, such as "blurring of boundaries" and "alleviation of pattern contrast," in addition to direct therapeutic actions like the reduction of cellulite thickness.

[0149] In addition, the cosmetic composition of the present invention can be expanded into various external skin formulations such as lotions, creams, and gels, thereby ensuring industrial utility value.

[0151] Although the present invention has been described together with the accompanying drawings, this is merely one example among various embodiments containing the gist of the invention, and its purpose is to enable those skilled in the art to easily implement it. It is clear that the present invention is not limited to the embodiments described above. Accordingly, the scope of protection of the present invention should be interpreted by the claims below, and all technical ideas within an equivalent scope by modification, substitution, substitution, etc., without departing from the gist of the invention shall be included within the rights of the present invention. Furthermore, it is clarified that some components in the drawings are provided in an exaggerated or reduced size compared to the actual form to more clearly explain the configuration. Explanation of the symbols

[0152] (S10): Mixture preparation step (S20): Fermentation step (S21): Death stage (S30): Extraction stage (S31): Filtration step (S32): Pressure concentration step (S40): Formulation step

Claims

Claim 1 A cosmetic composition for improving body cellulite, comprising a mixed extract prepared by fermenting a mixture of coffee beans (Coffea Arabica Seed), guarana seeds (Paullinia Cupana Seed), kola tree seeds (Cola Acuminata Seed), grape seeds (Vitis Vinifera Seed), and Mexican chia seeds (Salvia Hispanica Seed) with a Lactobacillus fermentation strain at 30 to 35°C for 1 to 3 days and extracting with an extraction solvent, wherein the extraction solvent is one or more selected from the group consisting of water, alcohol having 1 to 4 carbon atoms, propanediol, methylpropanediol, glycerin, butylene glycol, pentylene glycol, propylene glycol, ethylhexylglycerin, and hexanediol. Claim 2 A cosmetic composition according to claim 1, wherein the mixed extract is prepared by extracting a mixture comprising 0.1 to 99.6 weight% coffee beans, 0.1 to 99.6 weight% guarana seeds, 0.1 to 99.6 weight% kola nuts, 0.1 to 99.6 weight% grape seeds, and 0.1 to 99.6 weight% Mexican chia seeds. Claim 3 A cosmetic composition according to claim 2, wherein the mixed extract is prepared by extracting a mixture comprising 10 to 30 weight% coffee beans, 10 to 30 weight% guarana seeds, 10 to 30 weight% kola nuts, 10 to 30 weight% grape seeds, and 10 to 30 weight% Mexican chia seeds. Claim 4 A cosmetic composition characterized by providing a body cellulite improvement effect in claim 1. Claim 5 A cosmetic composition according to claim 1, characterized in that the cosmetic composition is formulated into a formulation of a toner, skin, lotion, cream, foundation, essence, gel, pack, emulsified sunscreen cream, emulsified foundation, emulsified makeup base, oil cake foundation, two-way cake, or powder pact.

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