CN113318008A

CN113318008A - Bath composition and preparation method thereof

Info

Publication number: CN113318008A
Application number: CN202110643065.8A
Authority: CN
Inventors: 陈结形; 阮景波; 张伟杰; 曾伟丹; 张楚标
Original assignee: Guangdong Danz Group Co Ltd; Guangzhou Keneng Cosmetic Research Co Ltd
Current assignee: Guangdong Danz Group Co Ltd; Guangzhou Keneng Cosmetic Research Co Ltd
Priority date: 2021-06-09
Filing date: 2021-06-09
Publication date: 2021-08-31
Anticipated expiration: 2041-06-09
Also published as: CN113318008B

Abstract

The invention discloses a bath composition and a preparation method thereof, and belongs to the technical field of bath products. The bath composition contains 1-10 parts of frosted particles per 100 parts by weight, does not contain a thickening agent or a suspending agent, and the frosted particles are sodium polyacrylate. The bath composition is prepared by taking sodium polyacrylate as abrasive particles, one of which can enable the bath composition to show comfortable and soft abrasive feeling, and can realize the effect of not damaging the skin under the condition of daily use by mildly removing cutin; the sodium polyacrylate is biodegradable, non-toxic and harmless, has a thickening function, can be uniformly and stably dispersed in a system, and does not need to be additionally added with a thickening agent and a suspending agent. The bath composition has the functions of sanding and foaming cleaning, can generate abundant foam, is easy to wash, can simultaneously realize cutin removal and bath cleaning, and avoids the step of further using shower gel for cleaning after using the scrub cream in the prior art.

Description

Bath composition and preparation method thereof

Technical Field

The invention relates to the technical field of bath products, and particularly relates to a bath composition and a preparation method thereof.

Background

Along with the aggravation of urban environmental pollution, the pressure of life and work is increased, irregular diet and work and rest of people are caused, the amount of exercise is reduced, and factors such as smoking, drinking, staying up night are added, so that the metabolic rate of a human body is slowed down, aged keratinocytes cannot naturally fall off and are accumulated on the surface of the skin, and in addition, dust and dirt are accumulated, so that the sebaceous glands and pores are blocked, and various skin problems such as roughness, darkness, acne and the like are caused.

The prior exfoliating products can not be used for a long time, otherwise the skin can be damaged, and on the other hand, the prior exfoliating products are matched with other products for cleaning after being used.

In view of this, the invention is particularly proposed.

Disclosure of Invention

One of the objects of the present invention is to provide a bathing composition which does not damage the skin in case of daily use, and which can simultaneously achieve exfoliation and bathing cleansing, avoiding the need to further clean with other products after use.

The second purpose of the invention is to provide a preparation method of the bath composition, which is simple, easy to operate and suitable for industrial production.

The invention can be realized as follows:

in a first aspect, the present invention provides a bath composition comprising, in parts by weight, 1 to 10 parts of abrasive particles per 100 parts of the bath composition, wherein the bath composition does not contain a thickening agent or a suspending agent;

the frosted particles are sodium polyacrylate.

In an alternative embodiment, the sodium polyacrylate has a particle size of 10-40 mesh.

In an optional embodiment, each 100 parts of the bath composition further comprises 1-50 parts of a surfactant, 0.1-5 parts of a whitening agent, 0.1-20 parts of a humectant, 0.05-2 parts of a pH regulator, 0.5-0.7 part of a preservative, 0.3-0.5 part of an essence and the balance of water.

In an alternative embodiment, each 100 parts of the bath composition comprises 2-7 parts of frosted particles, 1-30 parts of surfactant, 0.1-2 parts of whitening agent, 0.1-12 parts of humectant, 0.05-2 parts of pH regulator, 0.5-0.7 part of preservative, 0.3-0.5 part of essence and the balance of water.

In an alternative embodiment, the surfactant comprises at least one of sodium laureth sulfate, cocamidopropyl betaine, sodium lauroamphoacetate, sodium lauroyl sarcosinate, sodium methylcocoyl taurate, lauryl glucoside, decyl glucoside, sodium lauroyl glutamate, cocamide, sodium cocoyl glycinate, sodium cocoyl methyltaurate, potassium cocoyl glycinate, and ammonium lauryl sulfate.

In a preferred embodiment, the surfactant consists of sodium laureth sulfate, sodium cocoyl sarcosinate, and sodium lauroamphoacetate.

In an alternative embodiment, the whitening agent includes at least one of arbutin, resveratrol, vitamin C, and niacinamide.

In a preferred embodiment, the whitening agent is niacinamide.

In an alternative embodiment, the humectant comprises at least one of allantoin, glycerin, propylene glycol, sorbitol, D-panthenol, ceramide, sodium hyaluronate, betaine, sodium pyrrolidone carboxylate, and trehalose.

In a preferred embodiment, the humectant consists of allantoin and glycerin.

In alternative embodiments, the pH adjusting agent comprises at least one of citric acid, sodium hydroxide, potassium hydroxide, and arginine.

In a preferred embodiment, the pH adjusting agent is citric acid.

In an alternative embodiment, the preservative comprises at least one of phenoxyethanol, sodium benzoate, chlorphenesin, methylparaben, and ethylparaben.

In a preferred embodiment, the preservative is phenoxyethanol.

In a second aspect, the present invention provides a process for the preparation of a bath composition as in any one of the preceding embodiments, comprising the steps of: the frosted particles are mixed with other components in the bath composition according to the proportion.

In an alternative embodiment, when the bath composition contains a surfactant, a whitening agent, a humectant, a pH adjuster, a preservative, and a fragrance, the surfactant, the whitening agent, the pH adjuster, and water are mixed first, then mixed with the abrasive particles, the humectant, and then the preservative and the fragrance.

In an alternative embodiment, when the surfactant includes both sodium laureth sulfate, sodium cocoyl sarcosinate, and sodium lauroamphoacetate, the sodium laureth sulfate is mixed with water, followed by sodium cocoyl sarcosinate, sodium lauroamphoacetate, a whitening agent, and a pH adjusting agent, followed by mixing with abrasive particles, a humectant, and finally a preservative and a fragrance.

The beneficial effects of the invention include:

the bath composition is prepared by taking sodium polyacrylate as the abrasive particles, one of the bath composition can show comfortable and soft abrasive feeling, and the bath composition can achieve the effect of not damaging the skin under the condition of daily use by mildly removing cutin; the sodium polyacrylate is biodegradable, non-toxic and harmless, has a thickening function, can be uniformly and stably dispersed in a system, and does not need to be additionally added with a thickening agent and a suspending agent. The bath composition provided by the invention has the functions of sanding and foaming cleaning, can generate rich foam, is easy to wash, can simultaneously realize cutin removal and bath cleaning, and avoids the step of further using shower gel for cleaning after using the scrub cream in the prior art.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a graph showing the results of the efficacy evaluation test of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.

The bathing compositions and methods of making the same provided herein are described in detail below.

The inventor proposes that: the common shower gel is difficult to achieve the effects of removing cutin and deeply cleaning dirt, and the cutin removing product is required to be used for assisting cleaning. While the predominant exfoliating product on the market today is a scrub. Prolonged use can result in excessive exfoliation, thinning of the stratum corneum, causing skin damage, and further cleansing with body washes is required after use of these scrubs.

Specifically, the frosted substances (such as sea salt, walnut shells, dried fruit peels or polyethylene and the like) generally used in the prior art are hard in texture, strong in rough particle sense and not suitable for daily use, and the frosted substances are required to be stable in the system in the presence of a thickening agent and/or a suspending agent during use. In addition, the existing abrasive substance does not have the function of bubbles, can only be used as the abrasive substance, and needs to be further matched with a bath product for cleaning after exfoliating. Wherein, the polyethylene also has the defects of environmental protection, nonbiodegradability and great pollution to the water environment.

In view of the above, the inventors have creatively proposed a bath composition comprising, in parts by weight, 1 to 10 parts of abrasive particles per 100 parts of the bath composition, and the bath composition being free of a thickener or a suspending agent. Wherein the frosted particles are sodium polyacrylate.

The content of the abrasive particles may be, for example, 1 part, 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, or 10 parts, and may be any other value within a range of 1 to 10.

In an alternative embodiment, the abrasive particles are spherical water-based abrasive particles, specifically spherical water-based sodium polyacrylate.

The sodium polyacrylate used in the present application has a soft texture, can gently exfoliate, and has a thickening function by itself without adding a thickener and a suspending agent to the bath composition.

In a preferred embodiment, the particle size of the sodium polyacrylate is 10-40 mesh. By using the sodium polyacrylate with the particle size in the range as the abrasive particles, on one hand, the sodium polyacrylate with the particle size can have good exfoliating effect on the premise of not damaging the skin, and on the other hand, the sodium polyacrylate with the particle size can be uniformly dispersed and stably exist in a bath composition system.

In summary, the present application prepares a bath composition by using sodium polyacrylate as abrasive particles, which can make the bath composition exhibit a comfortable and soft abrasive feeling, and can achieve the effect of not damaging the skin in daily use by gently removing cutin; the sodium polyacrylate is biodegradable, non-toxic and harmless, has a thickening function, can be uniformly and stably dispersed in a system, and does not need to be additionally added with a thickening agent and a suspending agent. The bath composition using the sodium polyacrylate as the scrub particles has the scrub and foaming cleaning functions, can generate rich foam, is easy to wash water, can simultaneously realize cutin removal and bath cleaning, and avoids the step of further using bath cream for cleaning after using the scrub cream in the prior art.

Furthermore, in the application, every 100 parts of the bath composition can also comprise 1-50 parts of surfactant, 0.1-5 parts of whitening agent, 0.1-20 parts of humectant, 0.05-2 parts of pH regulator, 0.5-0.7 part of preservative, 0.3-0.5 part of essence and the balance of water.

By compounding the components, the obtained bath composition can deeply clean the skin and has good effects of moisturizing, whitening and tendering the skin.

The surfactant may be, for example, 1 part, 5 parts, 10 parts, 15 parts, 20 parts, 25 parts, 30 parts, 35 parts, 40 parts, 45 parts, or 50 parts, and may be any other value within a range of 1 to 50.

The content of the whitening agent may be 0.1 part, 0.5 part, 1 part, 1.5 parts, 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts, or the like, or may be any other value within the range of 0.1 to 5.

The content of the humectant may be 0.1 part, 0.5 part, 1 part, 5 parts, 10 parts, 15 parts, 20 parts or the like, or may be any other value within the range of 0.1 to 20.

The content of the pH adjuster may be 0.05 part, 0.1 part, 0.5 part, 1 part, 1.5 part, 2 parts or the like, or may be any other value within the range of 0.05 to 2.

The content of the preservative may be 0.5 parts, 0.55 parts, 0.6 parts, 0.65 parts, 0.7 parts or the like, or may be any other value within the range of 0.5 to 0.7.

The content of the essence can be 0.3 part, 0.35 part, 0.4 part, 0.45 part or 0.5 part, and the like, and can also be any value within the range of 0.3-0.5.

In some preferred embodiments, the bath composition comprises 2-7 parts of abrasive particles, 1-30 parts of surfactant, 0.1-2 parts of whitening agent, 0.1-12 parts of humectant, 0.05-2 parts of pH regulator, 0.5-0.7 part of preservative, 0.3-0.5 part of essence and the balance of water per 100 parts of bath composition.

Under the preferable proportioning range, the obtained bath composition has good cleaning capability, less irritation, easy rinsing and good moisturizing and whitening effects.

Alternatively, in bath compositions provided herein, the surfactant may comprise at least one of sodium laureth sulfate, cocamidopropyl betaine, sodium lauroamphoacetate, sodium lauroyl sarcosinate, sodium methylcocoyltaurate, lauryl glucoside, decyl glucoside, sodium lauroyl glutamate, cocamide, sodium cocoyl glycinate, sodium cocoyl methyltaurate, potassium cocoyl glycinate, and ammonium lauryl sulfate.

In some embodiments, the surfactant may consist of sodium laureth sulfate, sodium cocoyl sarcosinate, and sodium lauroamphoacetate. It can be referenced that sodium laureth sulfate and sodium cocoyl sarcosinate may both be used in amounts higher than sodium lauroamphoacetate, and that sodium laureth sulfate and sodium cocoyl sarcosinate may be used in amounts equal to each other.

In some preferred embodiments, the surfactant is comprised of sodium laureth sulfate, sodium cocoyl sarcosinate, and sodium lauroamphoacetate in a mass ratio of 9-10:9-10:5.5-6.5, more preferably in a mass ratio of 10:10: 6.

Optionally, in the bath composition provided herein, the whitening agent may include at least one of arbutin, resveratrol, vitamin C, and niacinamide.

In some embodiments, the whitening agent may be niacinamide.

Niacinamide, also known as nicotinamide, is an amide compound of niacin, is a water-soluble vitamin and a member of the vitamin B group, and has the effects of whitening, controlling oil, shrinking pores, removing acnes and the like. Nicotinamide can accelerate metabolism and keratinocyte desquamation containing melanocyte. The nicotinamide has small molecular weight, can be directly absorbed by epidermal cells, stimulates the vitality of decayed cells, promotes the synthesis of collagen, prevents the hyperpigmentation of melanin, and achieves the effect of whitening. Moreover, the nicotinamide can reduce the transfer of melanin to the horny layer of the skin, reduce the deposition of the melanin in the horny layer and avoid the skin from turning black. When the content of the nicotinamide in the bath composition reaches 2 wt%, the production of fatty acid and triglyceride in sebum secreted by skin can be reduced, the effect of controlling oil secretion is achieved, the oil secretion is reduced, and a pipeline-pore for the skin to excrete the sebum is also gradually reduced, so that the purpose of reducing the pore is achieved. When the content of nicotinamide in the bath composition reaches 4 wt%, the composition has a certain treatment effect on acnes (equivalent to the effect of 1 wt% clindamycin gel).

Alternatively, the bathing composition provided herein, wherein the humectant comprises at least one of allantoin, glycerin, propylene glycol, sorbitol, D-panthenol, ceramide, sodium hyaluronate, betaine, sodium pyrrolidone carboxylate, and trehalose.

In some embodiments, the humectant may consist of allantoin and glycerin.

Allantoin, also known as 5-ureylethanolamide, ureidoacetolactam, ureidohydantoin, uretidione, is a hydantoin derivative. Allantoin is cheap, and has effects of keeping moisture, resisting allergy, peeling off cutin and promoting wound healing. It can not only keep skin moisture, maintain physiological balance of skin moisture, relieve skin irritation caused by active substances, but also promote cell tissue growth, influence rapid granulation of epidermis, and accelerate renewal process. In addition, allantoin can accelerate wound healing and is beneficial to repair damaged skin. The food can endow sufficient water in intercellular spaces while peeling off the metabolic cutin, has good effect on rough and cracked skin, and can make the skin smooth and well.

In some preferred embodiments, the humectant consists of allantoin and glycerin in a mass ratio of 3-10.5:0.01-0.2, more preferably, the mass ratio of allantoin to glycerin is 6: 0.1.

Alternatively, the bath compositions provided herein, the pH adjuster can include at least one of citric acid, sodium hydroxide, potassium hydroxide, and arginine.

In some embodiments, the pH adjusting agent may be citric acid.

Alternatively, the bath compositions provided herein may include a preservative comprising at least one of phenoxyethanol, sodium benzoate, chlorphenesin, methylparaben, and ethylparaben.

In some embodiments, the preservative may be phenoxyethanol.

The essence material is the essence commonly used in daily chemical products, and is not limited too much.

In conclusion, the bath composition provided by the application is mild and non-irritant, can be used every day, can mildly remove aged accumulated cutin and deeply clean dirt, and can play the roles of moisturizing, whitening and tendering skin. The bath composition integrates the functions of frosting and bathing, can be cleaned without additional bath lotion after the frosted bath composition is used, and is time-saving and convenient.

Further, the application also provides a preparation method of the bathing composition, which comprises the following steps: the frosted particles are mixed with other components in the bath composition according to the proportion.

When the bath composition simultaneously contains the surfactant, the whitening agent, the humectant, the pH regulator, the preservative and the essence, the components can be mixed in the following sequence: mixing surfactant, whitening agent, pH regulator and water, mixing with abrasive particles and humectant, and mixing with antiseptic and essence. By mixing the components in batches, the dispersing performance of the components can be improved, and the components can uniformly and stably exist in a system.

When the surfactant simultaneously comprises sodium laureth sulfate, sodium cocoyl sarcosinate and sodium lauroamphoacetate, the sodium laureth sulfate may be mixed with water, then mixed with sodium cocoyl sarcosinate, sodium lauroamphoacetate, a whitening agent and a pH adjuster, then mixed with the abrasive particles, a humectant, and finally mixed with the preservative and the essence.

The above process can be carried out at room temperature (such as 10-35 deg.C), and can be specifically carried out in an emulsifying pot.

In conclusion, the preparation method provided by the application is simple in process, easy to operate and suitable for industrial production.

The features and properties of the present invention are described in further detail below with reference to examples.

Examples 1 to 8

Corresponding components (wherein, the particle diameter of the sodium polyacrylate is 10-40 meshes) are weighed according to the mixture ratio in the following table 1, and the corresponding bath composition is prepared according to the following preparation process.

The preparation process comprises the following steps:

step (1): adding sodium laureth sulfate and deionized water into an emulsifying pot at room temperature, stirring and dispersing uniformly;

step (2): adding sodium cocoyl sarcosinate, sodium lauroamphoacetate, nicotinamide and citric acid into the emulsifying pot in the step (1) and uniformly stirring;

and (3): premixing sodium polyacrylate, allantoin and glycerol, stirring uniformly, slowly adding into the emulsifying pot of step (2), and stirring uniformly;

and (4): and (4) adding the preservative and the essence into the emulsifying pot in the step (3) and uniformly stirring to obtain the mild frosted bath composition.

Table 1 bath composition formula table

Comparative examples 1 to 6

The corresponding components were weighed out in the proportions shown in table 2 below, and the corresponding bath compositions were prepared according to the preparation processes of examples 1 to 8.

Table 2 bath composition formula table

(I) efficacy evaluation experiment:

moisture retention property: skin moisture content test probes (instrument software CK-MPA-Multi-Probe-AdapterFB) were used: corneometer CM825 tests skin stratum corneum moisture.

The results are shown in fig. 1, where N-12 indicates the number of testers and the sample size, and the data is averaged.

From the results of the water content of the stratum corneum shown in fig. 1, it can be seen that: comparative example 3, in which the moisturizers glycerin and allantoin were not added, the moisture content of the stratum corneum was the lowest, followed by example 1, in which allantoin was not added and the content of glycerin was 3 wt%, whereas the moisturizing effect of the composition was gradually improved after the glycerin amount was more than 6 wt% and the allantoin amount was more than 0.1 wt% (example 5, example 6, example 7), and the moisturizing effect was improved only slightly after the glycerin amount was more than 10 wt% (example 8, comparative example 6), and example 4 was the optimum amount of the moisturizer in view of cost. Furthermore, comparative example 3, which did not contain glycerin and allantoin, did not show much difference in the water content of the stratum corneum after 0h, 4h and 8h, whereas the water content of the stratum corneum increased with time after the addition of glycerin and allantoin.

(II) overall consumer sensory evaluation test:

the bath compositions of example 4 and comparative examples 1 to 6 were each divided into 10 portions (70 portions in total), each of which was contained in a 100mL test pack bottle and distributed to test persons (70 persons) for comparison. The composition is administered once a day for one month, and the testers are scored according to the use feeling, and the average score is calculated. The scoring criteria used were 7 points, 1 being the worst, 7 being the best, the higher the score the better. The results of the effect evaluation test are shown in table 3.

TABLE 3 human sensory evaluation

The results in table 3 show that:

A. compared with example 4, the surfactant of the bath composition provided in comparative example 1 does not contain sodium cocoyl sarcosinate and sodium lauroamphoacetate, so that the bath composition is more irritant to skin after being used; the bath composition provided in comparative example 1 did not contain aqueous ground particles sodium polyacrylate, resulting in the bath composition having no abrasive exfoliating function, being inferior in cleaning ability to the examples, and being very difficult to rinse with excessive water; in addition, since the bath composition of comparative example 1 does not contain sodium polyacrylate, it requires additional compounding of sodium chloride as a thickener to enable the components in the system to be stably and uniformly dispersed.

B. In comparison with example 4, the surfactant of the bath composition provided in comparative example 2 does not contain sodium cocoyl sarcosinate and sodium lauroamphoacetate, resulting in a bath composition that is more irritating to the skin and less prone to water after use.

C. Compared with example 4, the bath composition provided by comparative example 3 does not contain whitening agents and humectants, so that the bath composition has poor whitening and moisturizing effects after use, and the skin is easily dried after use.

D. The bath composition provided in comparative example 4 does not contain a whitening agent as compared to example 4, resulting in poor whitening and moisturizing effects after the use of the bath composition.

E. In comparison to example 4, the bathing composition provided in comparative example 5 did not contain a humectant, resulting in a bathing composition that was dry to the skin after use.

F. The content of the humectant of comparative example 6 is out of the set range as compared with example 4, and each functional effect is excellent after the frosted bath composition is used, but the difference from example 4 is not obvious, and the example 4 is the optimal example in consideration of cost.

As can be seen from the data in Table 3, the moisturizing, whitening and tendering effects of example 4 are better than those of comparative examples 1-5, and are easy to wash out, and the cost is lower than that of comparative example 6, and the effects are not very different. The mild frosted bath composition provided by the invention can remove cutin and deeply clean dirt, and can make skin become tender, white and elastic after long-term use. To sum up, the bath composition provided by the application is mild and non-irritant, can be used every day, can mildly remove aged accumulated cutin and deeply clean dirt, and can play the roles of moisturizing, whitening and tendering skin. The bath composition integrates the functions of frosting and bathing, can be cleaned without additional bath lotion after the frosted bath composition is used, and is time-saving and convenient. The preparation method of the bath composition has simple process and easy operation, and is suitable for industrial production.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A bath composition characterized by comprising, in parts by weight, 1 to 10 parts of abrasive particles per 100 parts of said bath composition, and said bath composition being free of thickeners or suspending agents;

the frosted particles are sodium polyacrylate.

2. The bathing composition of claim 1 wherein said sodium polyacrylate has a particle size of 10-40 mesh.

3. The bathing composition of claim 1, wherein per 100 parts of the bathing composition further comprises 1-50 parts of a surfactant, 0.1-5 parts of a whitening agent, 0.1-20 parts of a humectant, 0.05-2 parts of a pH regulator, 0.5-0.7 part of a preservative, 0.3-0.5 part of a perfume, and the balance of water.

4. The bathing composition of claim 3 wherein said abrasive particles comprise, per 100 parts of said bathing composition, from 2 to 7 parts, from 1 to 30 parts of said surfactant, from 0.1 to 2 parts of said whitening agent, from 0.1 to 12 parts of said humectant, from 0.05 to 2 parts of said pH adjusting agent, from 0.5 to 0.7 parts of said preservative, from 0.3 to 0.5 parts of said fragrance, and the balance water.

5. The bath composition of claim 3 or 4, wherein said surfactant comprises at least one of sodium laureth sulfate, cocamidopropyl betaine, sodium lauroamphoacetate, sodium lauroyl sarcosinate, sodium methylcocoyltaurate, lauryl glucoside, decyl glucoside, sodium lauroyl glutamate, cocamide, sodium cocoyl glycinate, sodium cocoyl methyltaurate, potassium cocoyl glycinate, and ammonium lauryl sulfate;

preferably, the surfactant consists of sodium laureth sulfate, sodium cocoyl sarcosinate, and sodium lauroamphoacetate.

6. The bathing composition of claim 3 or 4 wherein the whitening agent comprises at least one of arbutin, resveratrol, vitamin C, and niacinamide;

preferably, the whitening agent is niacinamide.

7. The bathing composition of claim 3 or 4 wherein the humectant comprises at least one of allantoin, glycerin, propylene glycol, sorbitol, D-panthenol, ceramide, sodium hyaluronate, betaine, sodium pyrrolidone carboxylate, and trehalose;

preferably, the humectant consists of allantoin and glycerin.

8. The bathing composition of claim 3 or 4 wherein said pH adjusting agent comprises at least one of citric acid, sodium hydroxide, potassium hydroxide, and arginine;

preferably, the pH adjusting agent is citric acid.

9. The bathing composition of claim 3 or 4 wherein said preservative comprises at least one of phenoxyethanol, sodium benzoate, chlorphenesin, methylparaben, and ethylparaben;

preferably, the preservative is phenoxyethanol.

10. A process for the preparation of the bathing composition of any one of claims 1 to 9 comprising the steps of: mixing the frosted particles with other components in the bath composition according to the proportion;

preferably, when the bathing composition contains a surfactant, a whitening agent, a humectant, a pH adjuster, a preservative, and a fragrance, the surfactant, the whitening agent, the pH adjuster, and water are mixed first, then mixed with the abrasive particles, the humectant, and then the preservative and the fragrance;

preferably, when the surfactant includes sodium laureth sulfate, sodium cocoyl sarcosinate, and sodium lauroamphoacetate, the sodium laureth sulfate is mixed with water, then with the sodium cocoyl sarcosinate, the sodium lauroamphoacetate, the whitening agent, and the pH adjusting agent, then with the abrasive particles, the humectant, and finally with the preservative and the fragrance.