MXPA00008516A - High moisture toothpaste - Google Patents

Abstract

A stable, high moisture toothpaste has now been developed that comprises a carrageenan binder that is at least 70%iota carrageenan, a calcium based-polish agent, humectant, surfactant, water and optional additives and therapeutic actives used in dentifrice compositions. The calcium-based agent is present at a weight percent concentration in the range of about 35 to 50, the water is about 35 to 50%, the humectant is about 5 to 15%, the carrageenan is about 0.5 to 0.85%, and the surfactant is about 0.5 to 5%. The high moisture, low cost toothpaste that is provided has favorable physical properties such as good viscosity and stability without the need for additional binder which is optional.

Description

This invention relates to stable, high-water dentifrice compositions comprising an adherent carragahen material, a calcium-based brightening agent, humectant, agent 'surfactant, water and optional additives and therapeutic active ingredients used in tooth compositions.

More especially, this invention is related to a stable toothpaste with a high water content where the weight percent of the brightening agent is in the range of 35 to 50%, the water is 35 to 50%, the humectant is between 5 and 5. to 15%, carragahen is from 0.5 to 0.85%, and at least 70% of carragahen content is a carragahen iota. BACKGROUND Toothpastes typically contain the following general types of ingredients general types of ingredients: a brightening or abrasive agent, wetting agent, tackifier or thickener, a surfactant and water. The humectant and the water are also referred to together as a carrier, in addition, agents that provide cosmetic or therapeutic benefits, such as condoms, fluids, flavoring agents, sweeteners and tartarous control agents can be incorporated. The toothpaste formulations can vary in the specific ingredients and ingredients and in the amounts of these ingredients that are used. Most toothpastes contain an adherent material of 0.1 to 8% (percent by weight) also frequently referred to as thickener or a gelling agent, from 5 to 70% water, from 2 to 70% humectant, from 5 to 50 weight percent polishing agent, 0.2 to 20% surfactant, and 0.1 to 25% other adjuvant ingredients such as flavorings, sweeteners, fluoridates, antitartarous, condoms, anticalculus agents and other therapeutic agents compatible with toothpastes. For consumer satisfaction, toothpaste formulations must possess certain excellent physical properties to which the consumer is accustomed. These properties provide a toothpaste that has an apparent taste, that has a good cleaning effect, is easy to rinse, has an excellent mouth feel and has physical stability. Pastes with acceptable physical stability do not readily harden in the shell and do not show a phase separation such as water or flavor separation. The appearance of the paste when leaving the dispenser is also considered important. It should look soft and have a nice shine and satin. The carragahen is known to be an effective adherent material to provide the formulations of pastes in a is for the purpose that is to mena. Carragahen forms gels that are thixotropic. It is reported that those gels that show excellent extrusion, flavor release and rinsing. It is known that the use of a kappa and a carragahen iota as adherent materials in a gel toothpaste also provides a non-viscous toothpaste. The generic term carragahen applies to dozens of similar polysaccharides derived from marine algae. All Carragahens contain repeating galactose units linked by alternating β-3 and 4 glycosidic linkages and are partially sulphated. Carrageenan types can be distinguished in part by their degree of sulfation. Carragahen kappa has a repeating unit of D-galactose-4-sulfate-3,6-anhydro-D-galactose that provides a sulfate ester content. from about 18 to 25. The carragahen iota has a repeating unit of D-galactose-4-sulfate-3,6-anhydro-D-galactose-2-sulfate which gives a sulfate ester content of about 25 to 34 %. Carragahen lambda has a repeating unit of D-galactose-2-sulfate-D-galactose-2,6,6-disulfate which gives a sulfate ester content of about 30 to 40%.

Ideally, the excellent physical properties mentioned above are provided in a toothpaste that is cost effective for the consumer. There is a continuing emancipation to provide countries with economies that also maintain desirable properties. This is especially important in those parts of the world, where, despite its well-established benefits in dental hygiene, toothpaste is not yet affordable. One approach to a lower cost of toothpaste is to look for low-cost substitutes for specific high-cost ingredients. Carragahen, for example, is a relatively expensive ingredient, carragahen can sometimes be used in smaller quantities when mixed with gums and other thickeners such as carboxymethylcellulose and xanthan. US Patent 4,140,757 discloses a substitute part of the carragahen adhesive material in a toothpaste formulation with a less expensive amorphous synthetic silicone dioxide thickener. In cases where the carragahen part is replaced by other adherent materials, very often the total concentration of the adherent material may be larger than when the carragahen is used as a single adherent material. Another approach to lower cost toothpastes is to provide a toothpaste with a higher water content. Generally, toothpastes with a high water content (or toothpastes with a high humectant) are expected to be less expensive due to the low cost of water compared to other ingredients. It has been reported that the water in pastes in a is between 5 to 70 weight percent, but most toothpastes have a water content of between about 10 to 25 weight percent. . It is a challenge to obtain a toothpaste with a high humectant that has the desired physical properties. Relatively, the high water content in many cases is associated with problems of low viscosity and / or phase separation. During storage, water tends to move downward and oils, such as flavorings, move upward. With toothpastes with a high moisture content, the consumer may notice "a wet layer" or flavor concentration at the tip depending on whether the filled tubes were stored with the lids up or down. The separation can also adversely affect the gloss or gloss of the extruded dough. The toothpastes with high humectant with carragahen are known. The following US patents describe the various toothpaste formulations comprising carragahen as adherent material and a content of. water greater than about 30% by weight: 4,340,583, 4,814,160, 4,826,675, 5,096,699, 5,208,009 and 5,356,615. High-moisture toothpastes containing carrageen are generally formulated with the use of more or additional thickeners. It is a purpose of this invention to develop a toothpaste with high humectant with favorable physical properties comprising a toothpaste formulation where the carrageenan is present at a concentration of no more than about 0.85% and the total humectant concentration is not higher than fifteen%. It is yet another object to provide such a formulation having the favorable physical properties without the need for an additional adherent material. Summary of the Invention A stable high wetting toothpaste has now been developed and comprises an adherent carragahen material, a calcium-based brightening agent, humectant, surfactant, water and optional additives and therapeutic active agents used in tooth compositions. The calcium-based brightening agent is present in a concentration by weight percent in the range of about 35 to 50, the water is about 35 to 50%, the humectant is about 5 to 15%, the surfactant is from approximately 0.5 to 5%, carragahen is approximately 0.5 to 0.85% and at least 70% of carragahen content is carragahen iota. The toothpaste with high humectant that is provided has properties the need for an additional adherent material which is optional. DETAILED DESCRIPTION OF THE INVENTION The present invention provides stable dentifrice compositions with high humectant content, low cost having an excellent balance of properties comprising from about 0.5 to 0.85% by weight of carragahen and at least 70% of which is carragahen iota, approximately 35 to 50 percent by weight of water, approximately 35 to 50 percent by weight of calcium or abrasive based polishing agent, from 5 to 15 weight percent of humectant, and about 0.5 to 5 weight percent of surfactant. Optional ingredients that may also be present include silica up to about 5 weight percent and small amounts, 0.5 to 3.0 weight percent additional adjuvants such as flavorings, preservatives, sweeteners, fluorides, anti-tartar, anticalculus and other therapeutic actives. compatible with the dentifrice of this invention. The percentages of ingredients used in this specification refer to the percentage by weight of pure ingredient in the toothpaste, unless otherwise indicated. In one of the presentations of the invention the weight percent of carragahen is in the range of. . . it prefers a percent by weight of water that is in the range of about 36 to 50, more preferably 36 to 46, one percent by weight of preferred humectant is about 7 to 14 and one percent by weight of the preferred brightening agent is about 40 to 46, more preferably about 43 to 46. In another embodiment of the invention the weight percent of carragahen is in the range of 0.70 to 0.80. In this presentation, a preferred weight percent of water is in the range of about 40 to 50, one percent by weight of preferred humectant is in about 7 to 14, and a preferred weight of rinse is about 40 to 46. , more preferably from 40 to 43. Many of the past problems of toothpastes with high humectant have been overcome by the compositions of this invention. They show good Cuban value (they have a good consistency) and have flavor stability or water separation and hardening for long periods of time. In addition, from a good shelf life, toothpastes have softness and a pleasant appearance of shine and satin. These favorable properties have been achieved in a relatively low cost formulation, due in large part to the low levels of humectant that are required. invention need carragahen iota as the main carragahen component. Carragahen iota is at least 70% by weight of carrageen, preferably by at least 90%. Small amounts (less than 30% by weight) of other carragees, preferably kappa, can be used with carragahen iota in this invention. Carragahen usually contains a mixture of cations associated with carragahen sulfate groups, such that carragahen is provided in a partial salt form. The cations are allumetal cations and ground alkymetals, such as sodium, potassium and calcium. It is preferred that about 9 to 12% carragahen iota be in the salt form, preferably as sodium and potassium salts, with a minimum amount, less than about one percent, such as the calcium salt of carragahen iota. It is also preferred that the carragahen be a carragahen of medium or high viscosity. The descriptions of viscosity used herein refer to a 1.5% solution of carrageen in water at 75 ° C. The term "high viscosity" means that there is a water viscosity of at least about 50 cps, "medium viscosity" means having a water viscosity of about 40 to 50 cps and a low viscosity means having a viscosity of water of less than 40 cps. A carragahen that is preferred for use in the company FMC Corporation under the name of Viscarin®TP 399. Another carragahen that is preferred is available in FMC under the name of Viscarin®TP 329. The weight percent of carragahen is in the range from approximately 0.5 to 0.85%. One percent by weight of carrageen preferred is in the range of about 0.55 to 0.80%. Carrageenan can be used in small amounts (0 to 0.50 percent by weight), other adherent materials, such as other carrageenan, carboxymethyl cellulose, sodium derbyloxymethyl cellulose, hydroxyethylcarboxiethyl cellulose, polyvinyl pyrrolidone, gum tragacanth, hydroxypropylmethyl cellulose, ethyl cellulose, starch, starch glycolate, polyvinyl alcohol, alginate sodium, carob gum and hydroxyvinyl hydrophilic colloidal polymers, such as Carbopols® to produce toothpaste with high humectant. The usual vehicles for toothpastes are water and one or more moisturizers. The water used in this toothpaste can be any hygienically cleansed water, such as bottle water, good water and rainwater. Water is normally deionized before use. It is known that suitable humectants pass the direct chain or cyclic polyols of 3 to 6 carbons and mixtures thereof. The preferred humectants are glycerol and sorbitol. Sorbitol was used as a solution, available. The percentages of humectant such as sorbitol refer only to the humectant in the toothpaste, unless noted otherwise. A preferred weight percent of sorbitol is in the range of 7 to 14%. The use of glycerol-sorbitol mixtures is widely known. When said mixture is used, a preferred amount of glycerol is from about 0 to 7 weight percent. Other liquid polyols can also be used, such as glycols polyethylenes, mannols, xylitol, other sugar alcohols and polyoxyethylene alcohols. It is an advantage of this invention that high levels of humectant are not required in formulations with high water content to compensate for the concentration of low adhesion material. The calcium-based brightening agents of this invention include calcium-based agents that are known to be useful in toothpastes. These are powdered materials that do not have or have a low solubility in water and that have a preferred particle size of about 1 to 40 microns in diameter. More preferably, between about 2 to 20 microns in diameter with normal particle size distributions. All such agents have a polishing activity without being objectionably abrasive. Examples of calcium-based brightening agents, calcium carbonate, calcium pyrophosphate, calcium silicate and calcium aluminate. These brightening agents can be used with other abrasives such as crystalline silica, colloidal silica, complex aluminysilicates, aluminum hydroxide (including hydride trihydrate), magnesium phosphate, magnesium carbonate, bentonite, talcum, aluminum oxide, aluminum silicate and xerogels of silica. A calcium-based brightening agent that is preferred is precipitated in chalk (calcium carbonate). The surfactants (detergents) which can be used in the toothpaste of this invention are those commonly used to emulsify or otherwise uniformly disperse the components of the toothpaste. It is generally preferred that the detergent be ionic or non-ionic or a mixture thereof. Suitable types of anionic detergents include sodium lauryl sulfate, fatty acid monoglyceride sulfates, fatty alkyl sulfates, high molecular weight alkylaryl sulphonates, high molecular weight sulfoacetates alkyls, high molecular weight olefin sulfonates, high weight aliphatic acylamides Molecular of low molecular weight aliphatic aminocarboxylic acids, high molecular weight low molecular weight alkoxyl polyalkyl sulfates (3 to 100 alkoxyl groups) and fatty acid soaps. Examples of these anionic detergents, hydrogenated, monoglyceride fatty acid monosulfate, N-lauroyl sodium sarcoside and sodium cocato. Suitable types of nonionic detergents include low molecular weight alkyl oxide chains such as ethylene oxide and propylene oxide. Additional materials that are optionally added include flavorings, enamel hardeners, and antibacterial compounds. Examples of flavoring materials include saccharin sweetener, essential oils such as spearmint, peppermint, pyre, eucalyptus, lemon and lime. Examples of curing agents include sodium monofluorophosphate, sodium fluoride and fluoride tin. Examples of antibacterials are sodium benzoate and methyl or ethyl parasept. The toothpastes with high humectant of this invention can be prepared by batch processes or continuous manufacture. It is described in US patent 5,236,696 (Catilis et al.) A continuous process that can be used for the manufacture of toothpaste in this invention is described. EXAMPLES The toothpaste formulations in the following examples were prepared either by a hot process or a process at room temperature. The following steps process: (1) Adherent material was dispersed in the humectant with a high speed agitator and stirred for 10 minutes to form a gel. (2) The water was heated to 80 ° C and added to the humectant and continuous stirring for 15 minutes while maintaining the temperature between 65 to 70 ° C. (3) Sodium saccharin and sodium benzoate were dried in mixed. The mixed drying was stirred until it became a sticky and stirred material for 15 minutes while maintaining the temperature between 65 to 70 ° C. (4) The gel (elixir) was transferred to a low speed Ross ™ Mixer with high vacuum attachment. The Ross ™ Planetary Twin Motor Mixer is widely known, a two-blade mixer which operates from 20 to 100 revolutions per minute and can be operated at high vacuum. (5) The gis and optionally some of the silica were added to the elixir and mixed for 15 minutes in the high vacuum (at least 720 mm Hg.) (6) The flavor was added to the elixir and mixed for 10 minutes and the Ross mixer was added to the elixir. high total vacuum. (7) The surfactant and sodium lauryl sulfate were added to the mixture and continuously mixed in high vacuum for 20 minutes. (8) A sample was withdrawn for testing and the batch unloaded for filling. The process of ambient temperature is the same as the "Hot Process" except that in steps (2) and (3) the ra ura. operations or experimental lots were carried out using, either the hot processes or at room temperature described herein. In the following tables the carragahens Cgns A-D are iota, each with cations that are predominantly sodium and potassium. The Cgn A is a medium viscosity carragahen, Cgn B is a high viscosity carragahen, Cgn C has a viscosity range of 5 to 50 cps for a 1.5% solution at 75 ° C and a Cgn D is a low carragahen viscosity containing about 10% silica zeodent. The "Cgn E" is an extract of carragahen kappa, SCITP 105 is a carragahen iota sold by Shemburg and KPFX 8806 is a carragahen iota of high viscosity sold by Copenhagen Pecting. CMC 7MF, CMC (9M31F) Aqualon and Daicel are carboxymethylcellulose which are sold commercially. The comparisons were made between a number of formulations with varying amounts of different carragahens, water, humectants and brightening agents. Other components of the formulation were kept constant to evaluate the effect of the ingredients and their amounts in Cuban values and stability. Table 1 shows the ingredients that were constantly maintained in a set of comparisons.

. ,, Polisher and Moisturizer Ingredient Percentage Sodium saccharin 0.20 Sodium benzoate 0.30 Flavoring 1.00 Sodium lauryl sulfate 2.00 Table 2 illustrates some of the formulations containing the ingredients in Table 1 and the varying amounts of carrageen A, water, humectant and brightening agent. The formulations in Table 2 were prepared by the hot process described above. The term "sorbitol 70" refers to a solution of 70% sorbitol in water.

Table 2. Representative Raisins with Carragahen A by Hot Process No. Cgn A Sorbitol Glycerin Water Part 70 Gis 1 0.80 15.0 42.0 38.70 2 0.80 15.0 40.0 40.70 3 0.80 15.0 40.0 40.70 4 0.75 15.0 40.0 40.75 5 0.80 10.0 40.0 45.70 6 0.80 15.0 43.0 37.70 7 0.75 15.0 43.0 37.75 8 0.65 15.0 46.0 34.85 9 0.55 20.0 46.0 29.95 0.65 20.0 40.0 35.85 11 0.65 2U.0 46.0 29.85 12 0.80 20.0 4Q.0 35.70 13 0.80 20.0 46.0 29.70 14 0.58 15. Q 46.0 34.92. . -. . 16 0.65 15.0 - 43.0 37.85 17 0.65 - 10.0 43.0 42.85 18 0.60 15.0 43.0 37.90 Table 3 illustrates some of the formulations containing the ingredients in Table 1 and the different amounts of carrageen B, water, sorbitol and brightening agent. The formulations in Table 3 were prepared by the hot process described above.

Table 3. Representative Dental Pastes with Cgn B by Hot Process No. Cgn B Sorbitol Part of Water 70 Gis YES: Lice 19 0.65 15.00 46.00 - 34.85 0.80 10.00 40.00 - 45.70 21 0.60 15.00 46.00 - 34.90 22 0.60 15.00 46.00 - 34.90 23 0.60 15.00 45.00 - 35.90 24 0.60 15.00 44.00 - 36.90 0.55 15.00 46.00 - 34.95 26 0.55 15.00 45.00 - 35.95 27 0.55 15.00 44.00 - 36.95 28 0.70 15.00 40.00 - 40.80 29 0.55 15.00 43.00 2 .00 35.95 0.55 20.00 43.00. 2 .00 30.95 Table 4 illustrates some of the formulations containing the ingredients in Table 1 and the different amounts of carragahen B, water, sorbitol and brightening agent. The formulations in Table 4 were prepared by the process at room temperature described above.

. Process at Ambient Temperature No. Cgn B Sorbitol Part of Water 70 GIS YES: Lice 31 0.60 15.00 46.0 - 34.90 32 0.60 15.00 46.00 - 34.90 33 0.60 15.00 46.00 - 34.90 34 0.60 15.00 45.00 - 35.90 0.60 15.00 44.00 - 36.90 36 0.55 15.00 46.00 - 34.95 37 0.55 15.00 45.00 - 35.95 38 0.55 15.00 44.00 -, 36.95 39 0.55 15.00 43.00 2 .00 35.95 40 0.55 20.00 43.00 2 .00 30.95 41 0.60 15.00 46.00 - 34.90 Table 5 illustrates some of the formulations containing the ingredients in Table 1 with different carragees. The formulations in Table 5 were prepared by the hot process described above.

Table 5. Dental Pasta with Various Carragahens Carragahens No. Type% Sorbitol Part Gis Water 70 42 Cgn C 1.40 15.00 40.00 40.10 43 SCI TP 0.80 15.00 40.00 40.70 105 44 KPF X 0.80 15.00 40.00 40.70 8806 45 Cgn D 0.80 15.00 40.00 40.70 46 Cgn D 0.80 15.00 40.00 40.70 47 Cgn D 0.75 15.00 40.00 40.75 48 Cgn D 0.80 10.00 40.00 45.70 49 Cgn D 0.65 15.00 46.00 34.85 501 Cgn E 0.50 15.00 43.00 37.70 1 Added to the Daicel CMC formulation (0.30%) Table 6 illustrates some of the low comparative formulations in humectants that contain the ingredients in Table 1 and carragahen A. The most humectant and prepared by the process hot described above.

Table 6. Comparative Dental Pastes with Low Water Content No. Cgn A Sorbitol Glycerin Water Part 70 Gis 51 0.62 - 25.00 46.00 24.88 52 0.62 25.00 - 46.00 24.88 53 0.65 25.00 - 46.00 24.85 Test Results For each of the formulations prepared, Cuban values and physical stability were measured. The Cuban test values are directly related to the viscosity of the toothpaste. In the Cuban test (also called the "Rack" test), the paste is taken out of a tube through a fixed hole along a grid of parallel rods that are gradually spaced apart. The results of the test are expressed as the largest space number (numbers ranging from 1 to 12) which represents the longest distance between the rods that support the toothpaste without breaking it. The rack is approximately 300 millimeters (mm) long and approximately 100 millimeters wide. The stainless steel screws are spaced at increased spaced distances that begin "in 3mm between the rods 1 and increase to 3mm from rod to rod.Thus the distance between rods 2 and 3 is 6mm and the distance between the twelfth and thirteenth rod (space number 12) is 39mm, the readings from 1 to 2 and 9 to 12 are not acceptable, 3 and 8 are acceptable, 4 to 7 are good, and when carrying out the Cuban test, the following procedure is followed (1) A nozzle is attached to the toothpaste tube filled with test toothpaste. (2) The tube filled with test toothpaste and having the attached mouthpiece is held at a 45 ° angle to the rack apparatus. The pressure is applied to the bottom of the tube and a uniform paste tape is removed from the tube.While the pulp tape is being extruded from the tube the tube moves through the rack in a direct line as fast as possible. There is no time limit to lengthen the pastry tape ta on the rack. If the tape breaks before the whole rack is traversed, the whole procedure is repeated. (3) The tape is allowed to stop for 30 seconds. At that moment, the point at which the tape breaks is recorded as the rack that has measurement or a Cuban value. (4) The test is carried out five times and the average reading is recorded, rounding it to the nearest amount. The stability tests were carried out by filling tubes with the sample paste. The ambient tubes and at 50 ° C. After exposure to 12 weeks, the toothpaste tape of approximately 5 cm. long it was taken out of the tube. The tube was then left open and the tape and its contents were evaluated in taste and its separation phase (syneresis). The separation of the flavoring and the water phase at the tip of the toothpaste tube can be seen as a "wet layer". The flavor separation was measured at 0 = none, 1 = light, 2 = moderate and 3 = severe. Stability was measured as "not acceptable", "acceptable", and "good". To classify it as "not acceptable", the sample easily showed some undesirable properties such as taste separation, syneresis, not very hard in the tube and having unacceptable Cuban values. To be classified as "acceptable", the sample did not separate but could be somehow granular and lacking in good gloss. To qualify as "good" the sample showed no separation of any kind and the sample was superior in minor details such as a fine texture or non-granular and a higher brilliance and satin tube. Table 7 shows the results of the Cuban and stability tests for the formulations described above in Tables 1 to 6. Table 7. Test Results Cuban No. RT 50 ° C Cuban No. RT 50 ° C 1 9 acceptable - 28 6 good good 2 7 acceptable acceptable 29 4 acceptable acceptable 3 7 acceptable acceptable 30 4 acceptable acceptable 4 7 good acceptable 31 6 acceptable acceptable 7 acceptable acceptable 32 4 acceptable acceptable 6 10 good good 33 6 acceptable acceptable 7 8 acceptable acceptable 34 5 good good 8 8 acceptable acceptable 35 5 good good 9 5 acceptable acceptable 36 5 good good 6 acceptable acceptable 37 5 good good 11 6 acceptable acceptable 38 5 good good 12 6 good good 39 4 acceptable acceptable 13 9 acceptable acceptable 40 4 acceptable acceptable 14 5 no no 41 6 acceptable acceptable acceptable '15 5 acceptable acceptable 42 6 not acceptable not acceptable 16 5 acceptable acceptable 43 7 not acceptable acceptable 17 4 acceptable acceptable 44 3 not acceptable acceptable 18 4 good good 45 5 acceptable - 19 9 good good 46 5 no not acceptable acceptable 9 acceptable acceptable 47 4 not acceptable acceptable 21 8 acceptable acceptable 48 5 not acceptable acceptable 22 8 no 49 5 no not acceptable acceptable acceptable 23 5 ~ * acceptable 50 4 not acceptable not acceptable 24 5 - acceptable 51 5 good good 6 good good 52 5 good good 26 5 no - 53 5 acceptable acceptable acceptable In some of the samples the flavor separation occurred inside the tube. Those formulations that had more than a slight separation (ranging from 2 to 3) are listed in Table 8. Table 8. Dental Pastes Showing a Separation of Flavor from Severe to Moderate.

The formulations of this invention show an acceptable Cuban value and a stability reading that is "acceptable" or "good". These desired physical properties have been achieved in formulations of toothpastes with a high water content with relatively low concentration of adherent material and humectant. It appears that various modifications can be made in the formulations of the present invention without leaving the inventive concepts of the present, as defined in the claims.

Claims (9)

1. A toothpaste composition which comprises from 0.5 to 0.85 weight percent carragahen, at least 70% carragahen being carragahen iota, approximately 35 to 50 weight percent in water, approximately 35 to 50 weight percent of a calcium or abrasive based polishing agent, about 5 to 15 weight percent humectant and about 0.5 to 5.0 weight surfactant.

2. A toothpaste composition according to claim 1 wherein at least 90% of the weight percent of carragahen is carragahen iota.

3. A toothpaste composition according to claim 1 wherein the weight percent of carragahen is from about 0.55 to 0.80, the weight percent of water is from about 36 to 50, the weight percent of brightener agent calcium based is about 40 to 46, and the weight percent humectant is 7 to 14.

4. A toothpaste composition according to claim 3 wherein the weight percent of carragahen is about 0.55 to 0.65, the weight percent of water is about 36 to 46, the weight percent of brightening agent with calcium base is about 43 to 46. .

The composition is carried out in ae with orm a with claim 3 wherein the weight percent of carragahen is from about 0.70 to 0.80, the weight percent of water is about 40 to 50, the weight percent of the polishing agent base is from about 40 to 43.

6. A composition according to claim 1 wherein the brightening agent is selected from a precipitated gis and dicalcium phosphate.

7. A composition according to claim 6 wherein the humectant is sorbitol, glycerin or a mixture thereof.

8. A composition according to claim 7 wherein the surfactant is sodium lauryl sulfate.

9. A composition according to claim 3 wherein the brightening agent is precipitated gis, the surfactant is sodium lauryl sulfate, and the humectant is sorbitol. Now a toothpaste with stable high humectant comprising an adherent carragahen which is at least 70% carragahen iota, a calcium-based brightening agent, humectant, surfactant, water and optional additives and therapeutic active used in compositions has been developed. toothpaste The calcium-based agent is present in a concentration by weight percent in the range of 35 to 50, the water is approximately 35 to 50%, the humectant is approximately 5 to 15%, the carragahen is approximately 0.5 to 0.85. % and the surfactant is from about 0.5 to 5%. The low cost toothpaste with high humectant that is provided has favorable physical properties such as good viscosity and stability without the need for additional adhesive material which is optional.