Solid hair care product

Abstract

The present disclosure provides dry shampoo composition in a solid form that is effective for absorbing excess oil, reducing frizz, and volumizing hair without leaving a residue. A dry shampoo includes a base composition, and at least one cleaning agent present in the base composition. The dry shampoo is configured as a solid mass having a melting point of about 43ºC or greater. The base composition is degradable by mechanical force in contact with hair such that the at least one cleaning agent is applied to the hair. The at least one cleaning agent is effective to remove one or both of oil and grease from the hair without water rinsing.

Description

AttyDktNo .99527PCT-C63806- 10530WO (01401)SOLID HAIR CARE PRODUCTTechnical Field

[0001] The present disclosure relates to a dry shampoo composition that is configured as a solid mass and is effective for absorbing excess oil from hair, reducing hair frizz, and volumizing hair with substantially no residue. The present disclosure is also directed to a method of cleaning hair using the dry shampoo.Background

[0002] Dry shampoos are shampoo formulas that are generally in a powder form and are used without water. These compositions may be used on dry hair that has not been recently washed, in order to absorb excess oil from the hair to reduce the appearance of oily or “greasy” hair. In addition, the compositions can reduce the appearance of frizzy hair, and give an overall appearance of clean, recently washed hair. Dry shampoos are often used in-between traditional hair washes that require lathering soap and water, and dry shampoos are usually applied to the scalp or root of the hair. After application, the product may be brushed or massaged into the hair and scalp.

[0003] At the present time, many dry shampoo formulations are provided in the form of a spray composition and delivered in aerosol canisters where the composition is applied to the hair by spraying the composition onto the scalp or roots of the hair. The aerosol is sprayed into the roots of the hair, massaged-in, or combed or brushed through the hair, a process which can be done very quickly due to the no-rinse formulation. Such aerosol formulations typically include propellants, which are undesirable to use on hair because the propellant may be flammable or may leave the hair feeling sticky. Aerosol formulations may also contain alcohols, which may cause the hair to be dry and lead to breakage. In addition, aerosol canisters are difficult to recycle and are difficult to travel with on airplanes.

[0004] There remains a desire and a need to provide dry shampoo compositions that are presented in solid form rather than in aerosol form. It is also desirable that such dry shampoos remain suitable for cleaning dry hair and reducing the appearance of frizz while also volumizing the hair without leaving residue on the hair.Summary

[0005] The present disclosure provides dry shampoo compositions that are configured as a solid mass. The solid mass can take on any shape useful for ease of handling and use on hair. For example, the dry shampoo solid mass can be in the form of, for example, a bar, a stick, a cuboidal shape, or a spheroidal shape. The dry' shampoo solid mass, however, can take on any regular geometric shape or irregular shapes, such as ornamental shapes. The dry shampoo solid mass prepared using compositions as described herein may be used on dry (or dampened) hair with no need of rinsing the dry shampoo off and may be applied to hair by simply rubbing the dry shampoo solid mass on the hair. The dry shampoo solid mass can be prepared from a variety of different types of compositions. In some embodiments, the dry shampoo solid mass may be formed from compositions such as gel-based compositions, oil-based compositions, and / or emulsion-based compositions.

[0006] The presently disclosed dry shampoo can be provided in a format with associated packaging that improves sustainability compared to liquid shampoos, solid shampoos that are configured meant to be usedAttyDktNo .99527PCT-C63806- 10530WO (01401)with water and rinsed away, and also aerosol dry shampoos. Because water is not required to use the present, dry shampoo, cleaning of hair can be achieved with little to no required water usage. Further, unlike typical, dry shampoos, the present dry shampoo configured as a solid mass not an aerosol and thus requires no propellants for application to hair. The dry shampoo solid mass formulations may be configured to be relatively small and compact, and they may be packed in recyclable packaging and take minimal space during transport. For the consumer, this option is travel-friendly as thus can be used anywhere, anytime.

[0007] In one aspect of the present disclosure, a dry shampoo is provided, the dry shampoo includes a base composition; and at least one cleaning agent present in the base composition. The dry shampoo may be configured as a solid mass having a melting point of about 43°C or greater. The base composition may be degradable by mechanical force in contact with hair such that the at least one cleaning agent is applied to the hair; and the at least one cleaning agent may be effective to remove one or both of oil and grease from the hair without water rinsing.

[0008] The base composition includes at least one solvent; at least one thickener; and at least one solidifier. The at least one solvent may be an aqueous solvent. In some embodiments, the at least one solvent comprises water.

[0009] The at least one thickener includes a polysaccharide, and the at least one solidifier includes a stearate. The stearate may be one or both of sodium stearate and magnesium stearate. The at least one cleaning agent includes a clay. In some embodiments, the clay may be kaolin.

[0010] In various embodiments, the base composition may further include one or more materials selected from the group consisting of fragrances, preservatives, colorants, natural oils, or synthetic oils, and combinations thereof.

[0011] In some embodiments, the solid mass may be a bar or a stick.

[0012] In various embodiments, the base composition includes water; one or more emollient; one or more stearates; and one or more polysaccharides, and wherein the at least one cleaning agent includes a clay.

[0013] In various embodiments, one or more of the following applies: the water may be present in an amount of about 65% to about 90% by weight; the one or more diols may be present in an amount of about 5% to about 15% by weight; the one or more stearates may be present in an amount of about 2% to about 12%;the one or more polysaccharides may be present in an amount of about 0.1% to about 5% by weight: the clay may be present in an amount of about 1% to about 12% by weight; each of the foregoing is based on a total weight of the dry shampoo.

[0014] In various embodiments, one or more of the following applies: the emollient may be dimethicone: the stearate is one or both of sodium stearate and magnesium stearate; the polysaccharide may be carrageenan: and the clay may be kaolin.

[0015] In certain embodiments, the at least one cleaning agent may be kaolin, and the base composition includes water, dimethicone. sodium stearate, magnesium stearate, and carrageenan.

[0016] In certain embodiment, the cleaning agent may be removable from hair by one or both of combing and brushing.AttyDktNo .99527PCT-C63806- 10530WO (01401)

[0017] In another aspect of the present disclosure, a method of cleaning hair is provided, the method including the steps of: contacting hair with a dry shampoo configured as a solid mass comprising at least one cleaning agent present in a base composition, wherein the base composition comprises water, dimethicone, sodium stearate, magnesium stearate, and carrageenan, wherein the dry shampoo may have a melting point of about 43°C or greater; depositing the at least one cleaning agent on the hair by mechanically moving the dry shampoo through the hair; and removing excess cleaning agent present on the hair by further mechanical action and in the absence of water rinsing.

[0018] In some embodiments, the step of depositing the at least one cleaning agent on the hair includes rubbing with hands or fingers, combing, or brushing; and the step of removing excess cleaning agent present on the hair by further mechanical action includes rubbing with hands or fingers, combing, or brushing.

[0019] In some embodiments, the step of contacting hair with the dry shampoo may be configured as a solid mass is effective to degradation of the base composition.

[0020] In some embodiments, the at least one cleaning agent includes a clay.

[0021] Aspects and advantages of these exemplary embodiments and other embodiments, are discussed in detail herein. Moreover, it is to be understood that both the foregoing information and the following detailed description provide merely illustrative examples of various aspects and embodiments and are intended to provide an overview or framework for understanding the nature and character of the claimed aspects and embodiments. Accordingly, these and other objects, along with advantages and features of the present disclosure, will become apparent through reference to the following description and the accompanying drawings. Furthermore, it is to be understood that the features of the various embodiments described herein are not mutually exclusive and may exist in various combinations and permutations.Brief Description of the Drawings

[0022] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present disclosure, are incorporated in and constitute a part of this specification, illustrate embodiments of the present disclosure, and together with the detailed description, serve to explain principles of the embodiments discussed herein. No attempt is made to show structural details of this disclosure in more detail than may be necessary for a fundamental understanding of the embodiments discussed herein and the various ways in which they may be practiced. According to common practice, the various features of the drawings discussed below are not necessarily drawn to scale. Dimensions of various features and elements in the drawings may be expanded or reduced to more clearly illustrate embodiments of the disclosure.

[0023] FIG. 1 A is a top-down photograph of a dry shampoo composition configured as a solid mass according to an example embodiment of the present invention, and FIG. IB is a side view of the dry shampoo composition configured as a solid mass.

[0024] FIG. 2A is a photograph of a sample hair tress before any product was applied, FIG. 2B is a photograph of the sample hair tress after the dry shampoo bar of Example 1 is applied and massaged into the hair tress, and FIG. 2C is a photograph of the sample hair tress after the dry shampoo bar was brushed through the hair tress.AttyDktNo .99527PCT-C63806- 10530WO (01401)Detailed Description

[0025] The description may use the phrases "in certain embodiments,” "in various embodiments,” “in an embodiment,” or “in embodiments,” which may each refer to one or more of the same or different embodiments. Furthermore, the terms “comprising,” “including.” “having,” and the like, as used with respect to embodiments of the present disclosure, are synonymous. The terms “about” or “approximately ” are defined as being close to as understood by one of ordinary skill in the art. In one non-limiting embodiment, the terms are defined to be within 10%, preferably within 5%. more preferably within 1%, and most preferably within 0.5%. The terms “removing,” “removed,” “reducing,” “reduced.” or any variation thereof, when used in the claims and / or the specification includes any measurable decrease of one or more components in a mixture to achieve a desired result. The use of the words “a” or “an” when used in conjunction with any of the terms “comprising,” “including,” “containing.” or “having,” in the claims or the specification may mean “one,” but it is also consistent with the meaning of “one or more.” “at least one.” and “one or more than one.” The term “plurality” as used herein refers to two or more items or components. The terms “wt.%”, “vol.%”, or “mol.%” refers to a weight, volume, or molar percentage of a component, respectively, based on the total weight, the total volume of material, or total moles, that includes the component. In a non-limiting example, 10 grams of component in 100 grams of the material is 10 wt.% of component.

[0026] In one aspect of the present disclosure, a dry’ shampoo is provided which can be topically applied to hair. The term "dry shampoo” is understood to relate to a product that is effective to cleanse hair without any necessity for rinsing with water following application. Wet shampoo compositions are understood to be applied to wet hair, lathered, and then rinsed away with added water. A dry shampoo can be applied to hair and then optionally brushed or combed through the hair with fingers, hands, or a utensil (e.g., a comb or brush) to affect tire cleansing effect. No rinsing with w ater is required. A certain amount of liquid components may be included in a dry shampoo composition. Preferably, a dry shampoo composition in solidified form as disclosed herein comprises less than 20 wt%, less than 15 wt%, less than 10 wt%, less than 5 wt%, less than 1 wt%, or less than 0.1 wt% of an aqueous component, particularly water, based on the total weight of the dry shampoo composition.

[0027] In one embodiment, the dry shampoo composition may include a base composition that includes at least one solvent, at least one emollient, at least one solidifier, and at least one thickener. The dry shampoo composition may include a cleaning agent present in the base composition. The dry shampoo composition may also include additional additives such as fragrances and preservatives. Each type of component is not necessarily present in different embodiments of the dry shampoo compositions described herein.

[0028] The base composition may include at least one solvent, at least one emollient, at least one solidifier, and at least one thickener. The at least one solvent may include water. The water in this composition is added to modify the solidifier, which may include stearates, into a solid form and provide an overall structure or base for the other raw materials to disperse. An emollient may be included in the dry shampoo composition to create a softer or more pleasant “after feel” left on the hair. The emollient may include a silicone-containing compound, such as dimethicone.AttyDktNo .99527PCT-C63806- 10530WO (01401)

[0029] In some embodiments of the present disclosure, the weight percentage of water in the dry shampoo composition, based on the total weight of the dry' shampoo composition, can be about 50% to about 80%, about 55% to about 75%, or about 60% to about 70%. In certain embodiments, the weight percentage of emollient in the dry shampoo composition, based on the total w eight of the dry shampoo composition, can be about 1% to about 15%, about 4% to about 12%, or about 8% to about 10%.

[0030] The dry shampoo composition may include at least one solidifier, which provides structural integrity to the composition such that the dry shampoo composition may be formed into a solid mass, such as a mass shape as a bar or a stick, without crumbling or breaking apart when light pressure is applied during use of the bar or stick. Sodium stearates are examples of solidifiers and / or emulsifiers. Once dissolved and cooled, the stearates allow the bar to remain as a stable structure. For example, sodium stearate 200 includes a defined proportion of C20 and C22 fatty acids to increase the melting point of the composition. This is beneficial as the intended product (solid bar or stick) will come into contact with a user’s hands but should be maintained in a solid bar or stick. The amount of stearate 200 used may create a stable, secure solid structure while the amount in contact with a user’s hands is buildable and not excessive. The solidifier can be useful to enable processing the dry shampoo composition into a solid mass structure with a desired shape or form.

[0031] In some embodiments of the present disclosure, the weight percentage of solidifier in the dry shampoo composition, based on the total weight of the dry shampoo composition, can be about 1% to about 12%. about 2% to about 11%, about 3% to about 10%, about 4% to about 9%, or about 5% to about 8%.

[0032] The dry shampoo composition may include at least one thickener. The thickener provides enhanced stability of emulsions, suspensions, and foams of aqueous solutions. The thickener may include at least one polysaccharide, and the polysaccharide may be carrageenan.

[0033] In some embodiments of the present disclosure, the weight percentage of thickener in the dry shampoo composition, based on the total weight of the dry shampoo composition, can be about 0.1% to about 5%. about 0.5% to about 4.5%, about 1% to about 4%, about 1.5% to about 3.5%, or about 2% to about 3%.

[0034] The dry shampoo composition may include a cleaning agent useful for removing or absorbing excess oil, grease, and other undesirable elements from hair. For example, the dry shampoo composition can comprise at least one clay material or at least one starch material that is effective to absorb at least a portion of any oils present on hair. Clay materials in the present disclosure may include kaolin, and starch materials may include cornstarch, potato starch, tapioca starch, rice starch, wheat starch, cassava starch, and combinations thereof. In certain embodiments, the dry shampoo composition may include kaolin. A starch material can be modified (e.g., through processes such as esterification, etherification, oxidation, acid hydrolysis, crosslinking, or enzyme conversion) or unmodified. In some embodiments, a starch may be expressly excluded or the clay may be the only cleaning agent used in the dry shampoo composition.

[0035] In some embodiments of the present disclosure, the weight percentage of the cleaning agent in the dry shampoo composition, based on the total weight of the dry shampoo composition, can be about 0.1 % to about 15 %, about 1 % to about 12 %, about 2 % to about 10 %, or about 4 % to about 8 %. In certain embodiments, the weight percentage of the cleaning agent in the dry shampoo composition, based on the total weight of theAttyDktNo .99527PCT-C63806- 10530WO (01401)dry shampoo composition, can be at least about 0.1 %, at least about 1 %, or at least about 4 %, preferably with an upper range limit of about 15 % by weight.

[0036] The dry shampoo composition may include additives such as preservatives, colorants, natural oils, synthetic oils, and / or fragrances. For example, the preservatives may include phenols such as phenoxyethanol, and are used in cosmetics to prevent the grow th of harmful bacteria and mold. For example, the natural oils may include coconut oil, jojoba oil, avocado oil, sweet almond oil. tea tree oil, or argan oil. For example, the colorants may include a blonde colorant, a brunette colorant, a red colorant, a light colorant, or a dark colorant.

[0037] Another embodiment includes a method of cleaning hair using the dry shampoo as a solid mass, such as in a bar or stick. A consumer may apply the dry shampoo by contacting hair with the dry' shampoo. Upon contact with the hair, the cleaning agent may be deposited on the hair by mechanically moving the dry shampoo through the hair. This step of depositing the cleaning agent on the hair may include rubbing the hair with hands or fingers, combing, or brushing the hair. The hair may be tousled to distribute the cleaning agent throughout the hair to absorb oil from the hair. No rinsing with water is required to apply the dry shampoo, or to deposit the cleaning agent onto the hair. The step of contacting hair with the dry shampoo configured as a solid mass is effective to degrade the base composition sufficiently to allow small portions of the dry shampoo to attach to the hair sufficiently so that the cleaning agent may' absorb one or more of oil and grease from the hair.

[0038] Next, any' excess of the dry shampoo cleaning agent present on the hair may’ be removed by further mechanical action. Removal specifically' can be carried out in the absence of water rinsing.

[0039] The dry' shampoo composition may’ have a melting point of about 43°C to about 100°C, 44°C to about 90°C, or 45°C to about 85°C. or about 50°C to about 75°C. The dry shampoo may be present as a solid mass and may be held in a consumer’s hands during use. The dry' shampoo solid mass is intended to maintain its shape and remain solid at elevated temperature that may be experienced upon storage, or during use.

[0040] Another embodiment includes a method of manufacturing the dry' shampoo composition.

[0041] The method of manufacturing the dry shampoo composition may include the steps of heating a mixture of the solvents, adding the solidifiers to the heated mixture of solvents and mixing without aerating until all of the solidifiers is dissolved, cooling down the mixture of the solvents and the solidifiers while agitating, adding the cleaning agent, thickener, and additives once the mixture reaches a lower temperature and mixing, and pouring the mixture into a mold when the temperature of the mixture is between 68°C and 62°C to form a dry shampoo bar.

[0042] The mold may have any shape and size so as to be aesthetically pleasing and ergonomically useful. The shape of the mold may have a circular, square, or rectangular shape. The mold may have any desirable depth.Examples

[0043] The following are examples and comparative examples of dry shampoo compositions prepared as solid masses.AttyDktNo .99527PCT-C63806- 10530WO (01401)

[0044] Example 1

[0045] Table 1: Dry' shampoo composition of Example 1100.00

[0046] The composition for the dry shampoo in Table 1 was formulated according to the following steps. The composition was divided into two phases: phase A (powder phase) and phase B (liquid phase).

[0047] First, the powder components of phase A formed a mixture including the sodium stearates (solidifier). kaolin (cleaning agent), and carrageenan (thickener). The components were added one at a time to the RO water while magnetically stirring the mixture at a speed of 400 to 500 rpm.

[0048] Next, the liquid components of phase B formed a separate mixture including dimethicone (emollient), phenoxyethanol (preservative), and fragrance. The components were added together one at a time.

[0049] Next, phase A was heated to 70°C and phase B was heated to 65°C. Phase B was then added to phase A, and homogenized for two minutes using a homogenizer (Silverson® High Shear Mixer) at 2500 rpm to 3000 rpm. The mixture was slowly cooled under strong agitation without aeration. The resulting mixture was cooled and then poured slowly into a mold to form the dry shampoo composition into a bar shape when the temperature of the mixture was between 68°C and 62°C. An example of the dry shampoo bar formed is shown in FIGS. 1A and IB.

[0050] The obtained dry shampoo bar was applied to a hair tress. Once applied to a sample hair tress, the formulation of Example 1 created volume in the hair tress and smoothed the “frizz” of the hair tress.

[0051] Example 2

[0052] The amount of dimethicone was investigated. In the following Example 2, the amount of dimethicone was reduced to 8%, while the amount of the sodium stearates was increased.AttyDktNo .99527PCT-C63806- 10530WO (01401)

[0053] Table 2: Dry' shampoo composition of Example 2100.00

[0054] Comparative Example 1

[0055] The role of die solvent was investigated using different materials. In the following Comparative Example 1, propylene glycol was substituted for dimethicone. and titanium dioxide was added as a second cleaning agent. The composition was divided into three phases A-C as shown in Table 3.

[0056] Table 3: Dry shampoo composition of Comparative Example 1100.00

[0057] Comparative Example 2

[0058] In the following Comparative Example 2. glycerin was substituted for dimethicone.

[0059] Table 4: Dry shampoo composition of Comparative Example 2AttyDktNo .99527PCT-C63806- 10530WO (01401)100.00

[0060] Comparative Example 3

[0061] In the following Comparative Example 3, the amount of kaolin was reduced, and propylene glycol was substituted for dimethicone. The composition was divided into three phases A-C as shown in Table 4.

[0062] Table 4: Dry' shampoo composition of Comparative Example 3100.00

[0063] Comparative Example 4

[0064] In the following Comparative Example 4, the sorbitol was used instead of propylene glycol to evaluate structure of the bar to reduce crumbling.

[0065] Table 5: Dry shampoo composition of Comparative Example 4100.00AttyDktNo .99527PCT-C63806- 10530WO (01401)

[0066] The dry shampoo bar formed with sorbitol still had a separation and gradient when cooled. Although the foaming issue was reduced, the solid formulation was very slippery and greasy to touch.

[0067] Comparative Example 5

[0068] In the following Comparative Example 5, rice starch was milled prior to adding to the powder phase to reduce separation and increase hardness and structure of the solid formulation. This fonnulation showed separation in two distinct phases, making the bar unstable. Measuring each surface showed different readings which shows that there is separation in the raw materials. The composition was divided into three phases A-C as shown in Table 6.

[0069] Table 6: Dry shampoo composition of Comparative Example 5

[0070] Comparative Example 6

[0071] In the following Comparative Example 6, no emollient is used in the formulation. The composition was divided into three phases A-C as shown in Table 7.

[0072] Table 7: Dry shampoo composition of Comparative Example 6AttyDktNo .99527PCT-C63806- 10530WO (01401)

[0073] Quantitative Features of the Dry Shampoo Bar

[0074] The structure of each of the dry shampoo bars was quantified by measuring the hardness and adhesion of each of the formulated dry shampoo bars. A Brookfield Texture Analyzer CT3 was used to quantify hardness and adhesiveness of the solid formulations. Hardness is the force in grams necessary' to attain a given deformation. The higher the hardness value, the harder the sample bar. Adhesiveness is a measure of stickiness of a sample, and was calculated after the first compression. This was measured in mJ. The higher adhesiveness value indicated that more energy was required to detach the probe from the sample bar.

[0075] Bars of each of Example 1, and Comparative Examples 1-6 were formed and tested. To test the dry shampoo bars, a probe attached to the Brookfield Texture Analyzer was inserted into each bar, and the hardness and adhesiveness of each bar was measured. Table 8 presents the visual observation, hardness, and adhesion data for each dry shampoo bar formulation.

[0076] Table 8: Hardness and adhesiveness data

[0077] As shown in Table 8, only the dry' shampoo bar formed of the fonnulation in Example 1 did not crumble and had desirable hardness and adhesion.

[0078] Other objects, features and advantages of the disclosure will become apparent from the foregoing figures, detailed description, and examples. It should be understood, however, that the figures, detailed description, and examples, while indicating specific embodiments of the disclosure, are given by way of illustration only and are not meant to be limiting. Additionally, it is contemplated that changes and modifications within the spirit and scope of the disclosure will become apparent to those skilled in the art from the detailed description. In further embodiments, features from specific embodiments may be combined with features from other embodiments. For example, features from one embodiment may be combined with features from any of the other embodiments. In further embodiments, additional features may be added to the specific embodiments described herein.

Claims

AttyDktNo .99527PCT-C63806- 10530WO (01401)ClaimsWhat is claimed is:

1. A dry shampoo comprising:a base composition; andat least one cleaning agent present in the base composition,wherein:the dry shampoo is configured as a solid mass having a melting point of about 43"C or greater; the base composition is degradable by mechanical force in contact with hair such that the at least one cleaning agent is applied to the hair; andthe at least one cleaning agent is effective to remove one or both of oil and grease from the hair without water rinsing.

2. The dry shampoo of claim 1. wherein the base composition comprises:at least one solvent;at least one emollient;at least one thickener; andat least one solidifier.

3. The dry shampoo of claim 2, wherein the at least one solvent is an aqueous solvent.

4. The dry shampoo of claim 2, wherein the at least one emollient comprises dimethicone.

5. The dry shampoo of claim 2, wherein the at least one thickener comprises a polysaccharide.

6. The dry shampoo of claim 2, wherein the at least one solidifier comprises a stearate.

7. The dry shampoo of claim 6, wherein the stearate is one or both of sodium stearate and magnesium stearate.

8. The dry shampoo of claim 1, wherein the at least one cleaning agent comprises a clay.

9. The dry shampoo of claim 8. wherein the clay is kaolin.

10. The dry shampoo of claim 1, wherein the base composition further comprises one or more materials selected from the group consisting of fragrances, preservatives, colorants, natural oils, or synthetic oils, and combinations thereof.AttyDktNo .99527PCT-C63806- 10530WO (01401)11. The dry shampoo of claim 1, wherein the solid mass is a bar or a stick.

12. The dry shampoo of claim 1, wherein the base composition comprises:water;one or more emollient;one or more stearates; andone or more polysaccharides, andwherein the at least one cleaning agent comprises a clay.

13. The dry shampoo of claim 12, wherein one or more of the following applies:the water is present in an amount of about 65% to about 90% by weight;the one or more emollient is present in an amount of about 5% to about 15% by weight;the one or more stearates is present in an amount of about 2% to about 12%;the one or more polysaccharides is present in an amount of about 0.1% to about 5% by weight; the clay is present in an amount of about 1% to about 12% by weight;each of the foregoing is based on a total weight of the dry shampoo.

14. The dry’ shampoo of claim 12, wherein one or more of the following applies:the emollient is dimethicone;the stearate is one or both of sodium stearate and magnesium stearate;the polysaccharide is carrageenan; andthe clay is kaolin.

15. The dry' shampoo of claim 1, wherein the at least one cleaning agent is kaolin, and the base composition comprises water, dimethicone, sodium stearate, magnesium stearate, and carrageenan.

16. The dry shampoo of claim 1, wherein the cleaning agent is removable from hair by one or both of combing and brushing.

17. A method of cleaning hair, comprising the steps of:contacting hair with a dry shampoo configured as a solid mass comprising at least one cleaning agent present in a base composition, wherein the base composition comprises water, dimethicone, sodium stearate, magnesium stearate, and carrageenan,wherein the dry shampoo has a melting point of about 43°C or greater;depositing the at least one cleaning agent on the hair by mechanically moving the dry shampoo through the hair; andAttyDktNo .99527PCT-C63806- 10530WO (01401)removing excess cleaning agent present on the hair by further mechanical action and in the absence of water rinsing.

18. The method of cleaning hair of claim 17,wherein the step of depositing the at least one cleaning agent on the hair comprises rubbing with hands or fingers, combing, or brushing: andwherein the step of removing excess cleaning agent present on the hair by further mechanical action comprises rubbing with hands or fingers, combing, or brushing.

19. The method of cleaning hair of claim 17,wherein the step of contacting hair with the dry shampoo configured as a solid mass is effective to degrade the base composition.

20. The method of cleaning hair of claim 17, wherein the at least one cleaning agent comprises a clay.

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