A naturally derived deodorant and antiperspirant composition, a product containing the composition, and a method for preparing the same.

Abstract

This invention relates to a naturally derived deodorizing and antiperspirant composition, a product containing the composition, and a method for preparing the composition. The naturally derived deodorizing and antiperspirant composition is composed of Indian bamboo stem powder, sage oil, diatomaceous earth, and persimmon fruit extract. All components of the composition are naturally derived. Through synergistic effects of root inhibition and surface adsorption, it achieves the purpose of deodorizing and antiperspirant, making it gentler and safer, and meeting market demands and trends.

Description

Technical Field

[0001] This invention belongs to the field of personal care products, and in particular relates to a naturally derived deodorizing and antiperspirant composition, a product containing the composition, and a method for preparing the same. Background Technology

[0002] In recent years, with the increasing awareness of health and personal hygiene, deodorizing and antiperspirant products have gradually entered people's lives.

[0003] Currently available products have relatively limited functions. For example, deodorants can only reduce or mask body odor and do not contain active antiperspirant ingredients. While antiperspirants help reduce sweating, they generally only contain aluminum salts with antiperspirant activity and do not have deodorizing effects. However, for people with hyperhidrosis and bromhidrosis, there is an urgent need for both deodorizing and antiperspirant effects in skin folds such as the armpits. Therefore, to facilitate use and meet diverse needs, products with multiple functions need to be developed.

[0004] In addition, existing deodorant and antiperspirant products often contain synthetic ingredients, which pose potential health risks, such as:

[0005] ① Adverse skin reactions: Existing aluminum-containing antiperspirants and other products may cause skin irritation or contact dermatitis, especially when used on areas with thin and delicate skin such as the armpits. Adverse skin reactions are more common in people with sensitive skin or a history of contact dermatitis. Furthermore, long-term use may lead to epidermal cysts due to persistent blockage of sweat glands.

[0006] ② Aluminum salts and kidney disease: Antiperspirants containing aluminum salts may be harmful to patients with kidney disease.

[0007] ③ Antiperspirants and breast cancer risk: Antiperspirants contain aluminum salts and other harmful ingredients. Aluminum salts can be absorbed through the skin and affect estrogen receptors in breast cells, which may lead to breast cancer.

[0008] Therefore, it is necessary to continuously develop new, efficient, and green products to meet consumers' higher demands and ensure their safety and health. Summary of the Invention

[0009] In view of the above-mentioned shortcomings of the current technology, the present invention provides a natural deodorizing and antiperspirant composition, and based on the composition, develops a stick-shaped product that is easy to carry and use.

[0010] In a first aspect, the present invention provides a naturally derived deodorizing and antiperspirant composition comprising bambusa arundinacea stem powder, salvia officinalis oil, diatomaceous earth, and diospyros kaki fruit extract.

[0011] Indian bamboo stem powder is made from bamboo grown in the mountain forests of India. After being crushed, it forms an extremely fine powder (10-15 μm). It has a strong and effective adsorption and antiperspirant ability, can replace aluminum salts, and can adsorb twice the amount of artificial sebum, reducing oiliness.

[0012] Sage oil contains sage, which has antiperspirant properties, inhibits sweat secretion, and can induce feelings of happiness and pleasure.

[0013] Diatomaceous earth can quickly and efficiently absorb sweat and odor, leaving the skin feeling very soft and bare.

[0014] Persimmon fruit extract can effectively eliminate body odor, pet odor, and other everyday odors caused by nitrogenous compounds and lower fatty acids. It also has a significant antibacterial effect.

[0015] All components of the composition are of natural origin. Through synergistic effects such as root inhibition and surface adsorption, they achieve the purpose of deodorization and antiperspirant. Moreover, they are gentler, safer, and provide a better user experience, meeting market demands and trends.

[0016] Preferably, the weight ratio of Indian bamboo stem powder: sage oil: diatomaceous earth: persimmon fruit extract is 1-8:1-5:1-10:1-8.

[0017] More preferably, the weight ratio of Indian bamboo stem powder: sage oil: diatomaceous earth: persimmon fruit extract is 2-6: 1-3: 4-7: 2-4.

[0018] Different proportions of the four naturally derived ingredients in the deodorant and antiperspirant composition result in different deodorant and antiperspirant effects. Experiments were conducted to determine the composition with the best synergistic effect.

[0019] A second aspect of the invention provides the use of the aforementioned naturally derived deodorizing and antiperspirant composition in the preparation of deodorizing and antiperspirant products.

[0020] In a third aspect, the present invention provides a deodorizing and antiperspirant skin care product, which contains 1 to 30% by weight of the naturally derived deodorizing and antiperspirant composition described in the present invention, more preferably 5 to 15%.

[0021] Preferably, the deodorant and antiperspirant skin care product comprises, by weight percentage: 5%-50% polyol; 1%-10% C12-18 fatty acid salt; 1%-3.0% suspending agent; 0.1%-1% ester enriching agent; 0.1%-3% fragrance agent; 0.1%-2% preservative; 1%-30% of the above-mentioned naturally derived deodorant and antiperspirant composition; and the balance being water.

[0022] Preferably, the polyol is one or more of propylene glycol, dipropylene glycol, and butanediol.

[0023] Preferably, the C12-18 fatty acid salt is at least one of lauric acid, myristic acid, palmitic acid, stearic acid, and one or more of sodium, potassium, zinc, and triethanolamine as counterions.

[0024] Preferably, the suspending agent is one or more of magnesium aluminum silicate, modified corn starch, and bentonite;

[0025] The ester enrichment agent is one or more of the following: shea butter, C12-13 alcohol lactate, octyl dodecanol, and caprylic / capric triglyceride.

[0026] Preferably, the skin care product is a spray, rollerball, or solid stick.

[0027] In a fourth aspect, the present invention provides a deodorizing and antiperspirant solid stick, comprising, by weight percentage: 30-45% polyol, 5-8% C12-18 fatty acid salt, 1%-3.0% suspending agent, 0.2-0.5% ester enriching agent, 0.5-1.5% fragrance agent, 0.2-0.65% preservative, 5-15% of the aforementioned naturally derived deodorizing and antiperspirant composition, and the balance being water.

[0028] The solid stick is convenient to carry and easy to use. After being applied to the skin, it automatically forms a thin film on the surface of the sweating area, effectively preventing further sweating and the resulting body odor.

[0029] A fifth aspect of the present invention provides a method for preparing the aforementioned deodorizing and antiperspirant solid rod, comprising the following steps:

[0030] Step 1: Add water, polyol, C12-18 fatty acid salt, suspending agent, and ester enriching agent to the emulsification pot, heat to 85℃ and stir until dissolved and homogeneous;

[0031] Step 2: Cool to 60-70℃, add fragrance, preservative, and the aforementioned naturally derived deodorizing and antiperspirant composition, and stir well;

[0032] Step 3: Maintain the temperature at 55-65℃, filter the material, and pour it into the packaging mold while it is still hot to cool and solidify.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] This invention uses a combination of natural sources such as Indian bamboo stem powder, sage oil, diatomaceous earth, and persimmon fruit extract to deodorize and stop sweating. Through synergistic effects of root inhibition and surface adsorption, the product is not only highly effective in deodorizing and stopping sweating, but also gentler and safer, reducing skin irritation and damage. Detailed Implementation

[0035] The present invention will be further illustrated below with reference to specific embodiments, but the embodiments do not limit the present invention in any way. Unless otherwise specified, the reagents, methods, and equipment used in the present invention are conventional reagents, methods, and equipment in this technical field.

[0036] Unless otherwise specified, all reagents and materials used in the following examples are commercially available.

[0037] Indian bamboo stem powder is made from bamboo grown in the mountain forests of India, which is then pulverized into an extremely fine powder (10-15 μm). Sage oil and diatomaceous earth are both commercially available, common raw material products.

[0038] The preparation method of the persimmon fruit extract is as follows:

[0039] 1. Take 0.50g of fresh green tea leaves, add 0.30g of PVPP (cross-linked polyvinylpyrrolidone) (analytical grade, Shanghai Maclean's Reagent) and 10ml of citrate-phosphate buffer with pH 5.6, grind into a slurry in an ice bath, place in a 4℃ refrigerator for 12 hours to extract, then centrifuge at 8000 r / min for 15 min, and take the supernatant, which is the catechin enzyme solution.

[0040] 2. Wash and remove the stems from 1600g of green persimmons (the unripe fruit of the persimmon family, Diospyros genus), cut them into small pieces, and juice them in a juicer. Pass the juice through 60-mesh gauze to remove insoluble residues such as dietary fiber. Put 2g of the prepared catechin enzyme solution and 500g of persimmon juice into a reactor, add 500ml of phosphate buffer (pH 7.17), soak for 8 hours, filter, adjust the pH of the filtrate to 5.3-5.5, and place it at a constant temperature of 30℃ for at least 12 hours. Heat it to 75-80℃ to inactivate the enzyme and precipitate it. The filtrate obtained after filtration is the persimmon fruit extract.

[0041] This preparation process increases the content of condensed tannins, thereby improving the stability and antibacterial and deodorizing effects of persimmon extract.

[0042] Example 1

[0043] A naturally derived deodorant and antiperspirant composition comprising the following components in parts by weight: 6 parts Indian bamboo stem powder, 1 part sage oil, 4 parts diatomaceous earth, and 4 parts persimmon fruit extract prepared by the above process.

[0044] Example 2

[0045] A naturally derived deodorant and antiperspirant composition comprising the following components in parts by weight: 4 parts Indian bamboo stem powder, 1 part sage oil, 4 parts diatomaceous earth, and 4 parts persimmon fruit extract prepared by the above process.

[0046] Example 3

[0047] A naturally derived deodorant and antiperspirant composition comprising the following components in parts by weight: 2 parts Indian bamboo stem powder, 3 parts sage oil, 7 parts diatomaceous earth, and 2 parts persimmon fruit extract prepared by the above process.

[0048] Example 4

[0049] A naturally derived deodorant and antiperspirant composition comprising the following components in parts by weight: 8 parts Indian bamboo stem powder, 1 part sage oil, 2 parts diatomaceous earth, and 4 parts persimmon fruit extract prepared by the above process.

[0050] Example 5

[0051] A naturally derived deodorant and antiperspirant composition comprising the following components in parts by weight: 3 parts Indian bamboo stem powder, 1 part sage oil, 10 parts diatomaceous earth, and 1 part persimmon fruit extract prepared by the above process.

[0052] Example 6

[0053] A naturally derived deodorant and antiperspirant composition comprising the following components in parts by weight: 1 part Indian bamboo stem powder, 5 parts sage oil, 1 part diatomaceous earth, and 8 parts persimmon fruit extract prepared by the above process.

[0054] Comparative Example 1

[0055] A naturally derived deodorant and antiperspirant composition, differing from Example 1 in that it does not contain Indian bamboo stem powder, but is otherwise identical.

[0056] Comparative Example 2

[0057] A naturally derived deodorant and antiperspirant composition, differing from Example 1 in that it does not contain sage oil, but is otherwise identical.

[0058] Comparative Example 3

[0059] A naturally derived deodorant and antiperspirant composition, differing from Example 1 in that it does not contain diatomaceous earth, but is otherwise identical.

[0060] Comparative Example 4

[0061] A naturally derived deodorant and antiperspirant composition, differing from Example 1 in that it does not contain persimmon fruit extract, but is otherwise identical.

[0062] Comparative Example 5

[0063] A naturally derived deodorant and antiperspirant composition differs from Example 1 in that it uses a commercially available common persimmon fruit extract (purchased from RILIS Corporation, Japan, trade name: PANCIL® BA-210-1), otherwise it is the same.

[0064] The preparation methods of the compositions in each embodiment and comparative example are as follows:

[0065] Mix the formulated proportions of Indian bamboo stem powder, sage oil, diatomaceous earth, and persimmon fruit extract evenly, and after passing inspection, discharge, fill, and package.

[0066] Efficacy verification

[0067] Experimental methods:

[0068] Test environment: temperature 21±1℃, relative humidity 40-60%.

[0069] Test Participants: Fifty-five volunteers aged 18-45 with excessive underarm sweating and odor were recruited. The volunteers' physical health was not considered in relation to the test results. The volunteers were divided into 11 groups of 5 people each, and a randomized, double-blind test was conducted. The left and right armpits were designated as the control and test areas, respectively. No topical medications were used for 2-3 days prior to the test.

[0070] Test method: Volunteers washed their armpits with a special unscented shower gel and, after drying, attached special pads to the armpits of their tight-fitting clothes. The deodorant and antiperspirant composition of each experimental group and control group was evenly applied to the test area of ​​the experimental area, while no sample was applied to the control area. The test was then started.

[0071] After 8 hours of testing, the gasket was removed, sealed in a bag by a designated person, and the degree of odor was scored by trained professional judges. The scoring criteria followed the internationally recognized Wild II odor intensity scoring method, as shown in Table 1 below.

[0072] Table 1 Scoring Criteria

[0073]

[0074] 1. Calculate the deodorization rate for each group:

[0075] Deodorization rate = (sample score before use - sample score after use) / sample score before use × 100%.

[0076] 2. Subjective evaluation of antiperspirant effect

[0077] Subjects evaluated the antiperspirant effect on their experimental and control areas based on their subjective feelings, using a scale of 1-5 to represent antiperspirant effect and comfort (higher scores indicate better antiperspirant effect and greater comfort). The comfort rating criteria are shown in Table 2 below.

[0078] Table 2. Scoring Criteria for Antiperspirant Effect and Comfort

[0079]

[0080] Experimental results

[0081] The average values ​​of the antiperspirant and deodorizing effects of each group of natural deodorant combinations are shown in Table 3 below.

[0082] Table 3. Composition formulations and deodorizing and antiperspirant effects of the examples and comparative examples.

[0083]

[0084] As can be seen from the results in Table 3, the components in the composition of this application are synergistic and indispensable. Among them, Indian bamboo stem powder and diatomaceous earth have the effects of deodorization, antiperspirant and comfort, sage oil mainly has the effects of antiperspirant and improving comfort, and persimmon fruit extract mainly affects deodorization and user experience by eliminating body odor. The components have a synergistic effect.

[0085] Furthermore, the amount of Indian bamboo stem powder significantly affects the deodorizing effect; reducing its amount leads to a significant decrease in the deodorizing rate. Diatomaceous earth primarily utilizes its adsorption properties to absorb sweat and deodorize, and its pleasant skin feel enhances the user experience. However, excessive diatomaceous earth reduces the dispersion of rat tail oil and the amount of other ingredients, impacting the antiperspirant effect and user experience, resulting in decreased comfort. Conversely, insufficient diatomaceous earth results in a poor skin feel and weakened adsorption, also reducing the antiperspirant and deodorizing effects. Therefore, the proportions of each component must be within an appropriate range to achieve maximum synergistic efficacy. In addition, different persimmon extract preparation processes significantly affect the deodorizing effect of the composition. The innovative persimmon extraction process of this invention can significantly improve the deodorizing rate, antiperspirant effect, and comfort.

[0086] Based on a comprehensive comparison of the results of each embodiment, the composition of the formulation in Example 1 was used to formulate a deodorizing and antiperspirant solid stick in subsequent experiments.

[0087] Example 7

[0088] A deodorant and antiperspirant solid stick containing a naturally derived deodorant and antiperspirant composition, wherein the weight percentages of each component of the deodorant and antiperspirant solid stick are as follows: 45% polyol, 8% C12-18 fatty acid salt, 1.0% suspending agent, 0.5% ester enrichment agent, 1.5% fragrance agent, 0.65% preservative, 5% of the naturally derived deodorant and antiperspirant composition of Example 1, and water to 100%; wherein the polyol is dipropylene glycol, the C12-18 fatty acid salt is sodium stearate, the suspending agent is magnesium aluminum silicate, the ester enrichment agent is shea butter, the fragrance agent is fragrance, and the preservative is phenoxyethanol.

[0089] Example 8

[0090] A deodorizing and antiperspirant solid stick containing a naturally derived deodorizing and antiperspirant composition, wherein the weight percentages of each component of the deodorizing and antiperspirant solid stick are as follows: 40% polyol, 5% C12-18 fatty acid salt, 3.0% suspending agent, 0.2% ester enrichment agent, 0.5% fragrance agent, 0.5% preservative, 10% of the naturally derived deodorizing and antiperspirant composition of Example 1, and water to 100%; wherein the polyol is dipropylene glycol, the C12-18 fatty acid salt is sodium stearate, the suspending agent is bentonite, the ester enrichment agent is C12-13 alcohol lactate, the fragrance agent is fragrance, and the preservative is phenoxyethanol.

[0091] Example 9

[0092] A deodorant and antiperspirant solid stick containing a naturally derived deodorant and antiperspirant composition, wherein the weight percentages of each component of the deodorant and antiperspirant solid stick are as follows: 30% polyol, 7% C12-18 fatty acid salt, 1.5% suspending agent, 0.3% ester enrichment agent, 1.0% fragrance agent, 0.2% preservative, 15% of the naturally derived deodorant and antiperspirant composition of Example 1, and water to 100%; wherein the polyol is dipropylene glycol, the C12-18 fatty acid salt is sodium stearate, the suspending agent is bentonite, the ester enrichment agent is C12-13 alcohol lactate, the fragrance agent is fragrance, and the preservative is phenoxyethanol.

[0093] The antiperspirant sticks in Examples 7-9 were prepared using the following method, the specific steps of which are as follows:

[0094] Step 1: Add water, polyol, C12-18 fatty acid salt, suspending agent, and ester enriching agent to the emulsification pot, heat to 85℃ and stir until dissolved and homogeneous;

[0095] Step 2: Cool to 65℃, add fragrance, preservative, and natural deodorant and antiperspirant composition, and stir well;

[0096] Step 3: Maintain the temperature at 60℃. After passing the inspection, filter the material and pour it into the packaging mold while it is still hot to cool and solidify.

[0097] Comparative Example 6

[0098] This comparative example provides a deodorizing and antiperspirant solid stick, which differs from Example 7 in that it does not contain a naturally sourced deodorizing and antiperspirant composition, but is otherwise the same.

[0099] Comparative Example 7

[0100] This comparative example provides a deodorizing and antiperspirant solid stick, which differs from Example 8 in that it does not contain a naturally sourced deodorizing and antiperspirant composition, but is replaced by 8% by weight of a conventional aluminum salt - aluminum hydroxychloride, otherwise the same.

[0101] Comparative Example 8

[0102] This comparative example provides a deodorizing and antiperspirant solid stick, which differs from Example 8 in that the natural deodorizing and antiperspirant composition is replaced with the same amount of diatomaceous earth, while the rest are the same.

[0103] Comparative Example 9

[0104] This comparative example provides a deodorizing and antiperspirant solid stick, which differs from Example 9 in that it does not contain a naturally sourced deodorizing and antiperspirant composition, but is replaced by 5% by weight of zinc salt-zinc phenolsulfonate, otherwise the same.

[0105] Effect evaluation and performance testing

[0106] 1. Security Testing

[0107] The deodorizing and antiperspirant solid sticks of Examples 7-9 were distributed to 30 testers for testing. Each deodorizing and antiperspirant solid stick was tested using the following method: testers used the inside of their left and right arms as controls, applying the deodorizing and antiperspirant solid stick evenly to the inside of their left arm, maintaining a consistent application amount each time, and recording skin reactions after 0.5 hours, 24 hours, and 48 hours. Redness, erythema, itching, and rashes were considered allergic reactions. No testers experienced allergic reactions when using the deodorizing and antiperspirant solid sticks of the examples, indicating that the deodorizing and antiperspirant solid sticks prepared from the naturally derived deodorizing and antiperspirant composition of the present invention reduce skin irritation and have high safety.

[0108] 2. Functional Effect Test

[0109] Seven groups of testers were selected, with five testers in each group. The deodorizing and antiperspirant solid stick samples of Examples 7-9 and Comparative Examples 6-9 were distributed to the seven groups of testers respectively. Each group of testers applied the corresponding deodorizing and antiperspirant solid stick to their armpits. Using a CK MPA580 skin analyzer, the pH value was measured and recorded after 3 hours, 6 hours, and 9 hours of use. The average pH value of the five testers in each group was then calculated, as shown in Table 4.

[0110] Table 4. Antiperspirant Stick Efficacy Test

[0111]

[0112] As shown in Table 4, after 3, 6, and 9 hours of use of the deodorizing and antiperspirant sticks in Examples 7-9, the average pH value remained between 6.02 and 6.58. This indicates that the deodorizing and antiperspirant sticks in these examples inhibit the decomposition of sweat to produce ammonia, preventing changes in skin pH caused by ammonia. However, after 3, 6, and 9 hours of use of the deodorizing and antiperspirant sticks in Comparative Examples 6-9, the pH value was higher than 7.03. This indicates that the ability of the comparative examples to inhibit the decomposition of sweat to produce ammonia was weakened, and the pH value of the underarm skin increased due to ammonia. It can be seen that the natural deodorizing and antiperspirant composition of the present invention plays an important role in inhibiting the decomposition of sweat to produce ammonia. Its strong adsorption effect also helps to absorb sweat, thereby inhibiting the decomposition of human sweat to produce ammonia, avoiding skin irritation, and preventing the production of unpleasant odors, which is indispensable.

[0113] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0114] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A naturally derived deodorizing and antiperspirant composition, characterized in that, The composition consists of Indian bamboo stem powder, sage oil, diatomaceous earth, and persimmon fruit extract; According to the weight ratio, Indian bamboo stem powder: sage oil: diatomaceous earth: persimmon fruit extract = 2-6: 1-3: 4-7: 2-4; The preparation method of the persimmon fruit extract is as follows: Step 1: Take 0.50g of fresh green tea leaves, add 0.30g of cross-linked polyvinylpyrrolidone and 10ml of citrate-phosphate buffer with pH 5.6, grind into a slurry in an ice bath, and then place in a 4℃ refrigerator for 12 hours to extract. Then centrifuge at 8000 r / min for 15 min and take the supernatant, which is the catechin enzyme solution. Step 2: Wash 1600g of green persimmons, remove the stems, cut them into small pieces, put them into a juicer to extract the juice, pass the juice through 60-mesh gauze to remove insoluble residues such as dietary fiber, put 2g of the obtained catechin enzyme solution and 500g of persimmon juice into a reactor, add 500ml of phosphate buffer solution with pH 7.17, soak for 8 hours, filter, then adjust the pH of the filtrate to 5.3-5.5, place it at a constant temperature of 30℃ for at least 12 hours, heat to 75-80℃ to inactivate the enzyme and precipitate it, and the filtrate obtained after filtration is the persimmon fruit extract.

2. The use of the natural-derived deodorizing and antiperspirant composition as described in claim 1 in the preparation of deodorizing and antiperspirant products.

3. A deodorizing and antiperspirant skin care product, characterized in that, Its components, by mass percentage, include: 5%-50% polyol; 1%-10% C12-18 fatty acid salt; 1.0%-3.0% suspending agent; 0.1%-1% ester enriching agent; 0.1%-3% fragrance agent; 0.1%-2% preservative; 1%-30% of the naturally derived deodorizing and antiperspirant composition as described in claim 1; and the balance being water. The suspending agent is one or more of magnesium aluminum silicate, modified corn starch, and bentonite; The ester enriching agent is one or more of the following: shea butter, C12-13 alcohol lactate, octyl dodecanol, and caprylic / capric triglyceride; The C12-18 fatty acid salt is at least one of myristic acid, palmitic acid, stearic acid, and one or more of sodium, potassium, zinc, and triethanolamine as counterions.

4. The deodorizing and antiperspirant skin care product according to claim 3, characterized in that, The polyol is one or more of propylene glycol, dipropylene glycol, and butanediol.

5. The deodorizing and antiperspirant skin care product according to claim 3, characterized in that, The skincare product is a spray, roll-on, or solid stick.

6. A deodorizing and antiperspirant solid stick, characterized in that, The composition, by weight percentage, comprises the following components: 30-45% polyol, 5-8% C12-18 fatty acid salt, 1.0%-3.0% suspending agent, 0.2-0.5% ester enriching agent, 0.5-1.5% fragrance agent, 0.2-0.65% preservative, 5-15% of the naturally derived deodorizing and antiperspirant composition as described in claim 1, and the balance being water; The suspending agent is one or more of magnesium aluminum silicate, modified corn starch, and bentonite; The ester enriching agent is one or more of the following: shea butter, C12-13 alcohol lactate, octyl dodecanol, and caprylic / capric triglyceride; The C12-18 fatty acid salt is at least one of myristic acid, palmitic acid, stearic acid, and one or more of sodium, potassium, zinc, and triethanolamine as counterions.

7. The method for preparing the deodorizing and antiperspirant solid rod as described in claim 6, characterized in that, Includes the following steps: Step 1: Add water, polyol, C12-18 fatty acid salt, suspending agent, and ester enriching agent to the emulsification pot, heat to 85℃ and stir until dissolved and homogeneous; Step 2: Cool to 60-70℃, add fragrance, preservative, and the natural deodorizing and antiperspirant composition as described in claim 1, and stir well; Step 3: Maintain the temperature at 55-65℃, filter the material, and pour it into the packaging mold while it is still hot to cool and solidify.

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