WO2008150155A2

WO2008150155A2 - Composition for shaving

Info

Publication number: WO2008150155A2
Application number: PCT/NL2008/000144
Authority: WO
Inventors: Hans Bernd Schmittmann; Fritz Dr. Ley; Mario Dominik Oldani
Original assignee: Otc Pharma International B.V.; Bonapharm Gmbh
Priority date: 2007-06-08
Filing date: 2008-06-04
Publication date: 2008-12-11
Also published as: WO2008150155A3; NL1033954C2

Abstract

The present invention relates to a composition for shaving. Specifically, the present invention relates to a composition for replacing, for example, a shaving foam or shaving gel during shaving. For this, the present invention provides a composition comprising: a) 5-20% (w/w) of one ore more vegetable oils; b) 20-50% (w/w) of a lower alkyl, branched or unbranched, comprising 1 to 4 carbon atoms; c) 1-10% (w/w) of one or more structure providing compounds; and d) 40-65% (w/w/) water.

Description

COMPOSITION FOR SHAVING

Description

The present invention relates to a composition for shaving. Specifically, the present invention relates to a composition for replacing, for example, a shaving foam or shaving gel during shaving.

The composition according to the present invention is characterized in that the composition is based on the use of vegetable oils during shaving.

These oils provide good, and smooth, shaving results and also skin care by, for example, preventing dehydration of the skin. The use of oils for shaving, and particularly vegetable oils, provides many advantages as compared to, for example, a shaving foam or shaving gel.

Firstly, the oils prevent, because of their inherent hydrating nature, dehydration of the skin. Additionally, they cause, and especially vegetables oils, less, or no, irritation of the skin.

Further, oils provide, because of their nature, anti-frictional or lubricating properties, thereby improving the sliding of the knives over the skin. Furthermore, oils, and particularly vegetable oils, are, because of their natural origin, in general biologically degradable thereby providing less environmental stress through the use of oils during shaving as compared to the use of, often on chemicals based, shaving foams and shaving gels.

The use of oils, and particularly vegetable oils, for shaving is known. However, in order to effectively use these oils for shaving, a disadvantage is that the skin must repeatedly be moisturized to allow good shaving results.

Further, these oils unevenly distribute over the skin, and they cause agglomeration of the bodily hairs on a shaving knife. Furthermore, it is difficult to remove the bodily hairs shaved from the shaving knife.

Considering the above, it an object of the present invention to provide the use of oils, and particularly vegetable oils, as an alternative for, for example, shaving foam or shaving gel, thereby obviating the present disadvantages accompanying the use of these oils.

The present invention not only provides a solution for the disadvantages, until the present invention, associated with the use of oils for shaving, but also provides many advantages as compared to the use of a shaving foam or shaving gel .

For this, the present invention provides a composition as defined in claim 1.

Specifically, the present invention provides a composition for use during shaving, and especially as a shaving foam or shaving gel replacement, comprising: a) 5-20% (w/w) of one ore more vegetable oils; b) 20-50% (w/w) of a lower alkyl, branched or unbranched, comprising 1 to 4 carbon atoms; c) 1-10% (w/w) of one or more structure providing compounds ; and d) 40-65% (w/w/) water.

Within the context of the present invention, the indication % (w/w) indicates the weight percentages in relation to the total weight of the composition.

The present inventors have surprisingly found that, when vegetable oils are used in the above composition, repated moisterizing of the skin is no longer necessary during shaving .

Further, the present inventors have found that, when using the present composition, little of no irritation of the skin occurred and the skin felt flexible and soft after shaving.

Furthermore, it was found that the shaving knives smoothly slid over the skin. This was accompanied by an effective removal of the bodily hairs . It was also found that the present composition evenly distributed over the skin and the shaved hairs did not agglomerate and could readily be removed from the shaving knife.

In a preferred embodiment of the present invention, the composition further comprises 0.1-2% (w/w) of a surfactant or a soap component . Although any surfactant or soap component generally used in personal care products is also suitable for use in accordance with the present invention, it is particularly preferered that the surfactant or soap component is saponins such as Quillaia saponins.

In a futher embodiment of the present invention, the invention relates to a composition for use during shaving, and especially as a shaving foam or shaving gel replacement, comprising: a) 5-20% (w/w) of one ore more vegetable oils; b) 25-45% (w/w) of a lower alkyl, branched or unbranched, comprising 1 to 4 carbon atoms; c) 2-8% (w/w) of one or more structure providing compounds ; and d) 40-60% (w/w/) water.

The vegetable oils according to the present invention are preferably chosen from the group consisting of thistle oil and castor oil, although other skin caring oils are contemplated.

Additionally, the lower alkyl is preferably selected from the group consisting of ethanol and isopropyl alcohol .

Also, the one or more structure providing compounds are preferably chosen from the group consisting of guar gum, locust bean gum, xanthan and silicon dioxide (aerosil) . The composition according to the present invention preferably further comprises 2-10% (w/w) Aloe Vera.

The composition according to the present invention preferably also comprises 1-10% (w/w) wax. Examples of suitable waxes are cocoa butter, bees wax, shee butter, candelilla wax or carnauba wax.

In a particularly preferred embodiment, the composition according to the present invention comprises one or more compounds selected from the group consisting of vitamin A (carotene) , vitamin E (tocopherol acetate) , menthol, and skin care products such as preferably boswellia serrata extract (soothex) .

Thes ingredients further attribute to the skin caring characteristics of the present composition or a refreshed feeling after shaving. In a particularly preferred embodiment, the composition according to the present invention comprises: a) 2-10% (w/w) Aloe Vera; b) 4-11% (w/w) thistle oil; c) 0.1-0.42% (w/w) castor oil; d) 25-50% (w/w) ethanol; e) 0.2-0.8% (w/w) guar gum; f) 0.4-1.35% (w/w) xanthan; g) 0.3-1.4% (w/w) locust bean gum; h) 1-5% (w/w) silicon dioxide (aerosil) ; i) 0.1-0.5% (w/w) saponins; and j) 40-60% (w/w) water.

The above composition according to the present invention is preferably supplemented with: k) 1-2% (w/w) boswellia serata extract

(soothex) .

The above composition according to the present invention is further preferably supplemented with: 1) 0.1-0.65% (w/w) menthol.

Finally, the above composition according to the present invention is preferably supplemented with: m) 0.001-0.005% (w/w) vitamin A (carotene); and n) 0.3-0.9% (w/w/) vitamin E (tocopherol acetate) .

In a most preferred embodiment, the present invention relates to a composition for use during shaving, and especially a having foam or shaving gel replacement, comprising: a) 5% (w/w) Aloe Vera; b) 7% (w/w) thistle oil; c) 0.3% (w/w) castor oil; d) 30% (w/w) ethanol; e) 0.5% (w/w) guar gum; f) 0.8% (w/w) xanthan; g) 0.8% (w/w) locust bean gum; h) 0.2% (w/w) saponins; i) 53.6% (w/w) water; j) 1% (w/w) boswellia serrata extract (soothex); k) 0.3% (w/w) menthol;

1) 0.001% (w/w) vitamin A (carotene); m) 0.5% (w/w/) vitamin E (tocopherol acetate); and n) 3.5% (w/w) silicon dioxide (aerosol) .

Because of the many advantageous properties of the above composition for use during shaving, and especially as a replacement of shaving foam or shaving gel, the present invention also relates to a composition for use during shaving comprising: a) combining water, vitamin A (carotene) , saponins and Aloe Vera in the % (w/w) of the total composition as indicated above while heating; b) adding thereto, ethanol , vitamin E

(tocopherol acetate), menthol, boswellia serrata extract (soothex) , thistle oil and castor oil in the % (w/w) of the total composition as indicated above while vigorously stirring; c) adding thereto, guar gum, xanthan and locust bean gum in the % (w/w) of the total composition as indicated above while ' vigorously mixing; and d) silicon dioxide (aerosil) in the % (w/w) of the total composition as indicated above.

Because of the already indicated reasons, the present invention also relates to use of the present composition for shaving and, especially, as replacement for the classical shaving foam or shaving gel .

Example

The present example relates to the preparation of a shaving gel or shaving foam replacing composition according to the present invention.

For this, in a first step, was combined: a) 5 % (w/w) Aloe Vera ; b) 0.001% (w/w) vitamin A (carotene); c) 0.3% (w/w) Quillaia saponins (Q-DAB); and d) 53.6% (w/w/) distilled water.

This mixture was slightly heated to encourage mixing of the ingredients and the pH was set at a pH of between 4.5 and 4.7 using lactic acid (Purac 80) . The ingredients were mixed using a Turrax. Subsequently, in a second step, was added to the mixture obtained: e) 30% (w/w) ethanol; f) 0.5% (w/w) vitamin E (tocopherol acetate) ; g) 0.3% (w/w) menthol; h) 1% (w/w) soothex; i) 7% (w/w) thistle oil; and j) 0.3% (w/w) castor oil.

The pH of this mixture was set between pH 5.2 and pH 5.4 using lactic acid (Purac 80), or NaOH, and the ingredients were mixed using a Turrax. An albicant mixture was obtained.

Then, in a third step, was added to this mixture: k) 0.5% (w/w) guar gum; 1) 0.8% (w/w) xanthan (Rhodigel) ; and m) 0.8% (w/w) locust bean gum. The ingredients were mixed using a Turrax.

Finally, in a fourth step, was added: n) 3.5% (w/w) silicon dioxide (aerosil 200) .

Firstly, the silicon dioxide was sieved and, thereafter, added to the mixture in 1 gram portions. After each addition, the ingredients were dispersed using a Turrax.

Then, the mixture was placed in a refrigerator for 3-4 hours thereby providing, optionally after sieving, a slightly off-white product.

For shaving, an amount a 0.4-0.5 gram suffices to replace a shaving foam or shaving gel during shaving.

Claims

1. Composition for use during shaving comprising: a) 5-20% (w/w) of one ore more vegetable oils; b) 20-50% (w/w) of a lower alkyl, branched or unbranched, comprising 1 to 4 carbon atoms ; c) 1-10% (w/w) of one or more structure providing compounds; and d) 40-65% (w/w) water.

2 . Composition according to claim 2 , further comprising 0 . 1-2% (w/w) surf actans .

3. Composition according to claim 1 or claim 2, comprising : a) 5-20% (w/w) of one ore more vegetable oils; b) 25-45% (w/w) of a lower alkyl, branched or unbranched, comprising 1 to 4 carbon atoms ; c) 2-8% (w/w) of one or more structure providing compounds ; and d) 40-60% (w/w/) water.

4. Composition according to any of the claims 1 to

3, wherein the one or more vegetable oils are chosen from the group consisting of thistle oil and castor oil.

5. Composition according to any of the claims 1 to

4, wherein the lower alkyl is chosen from the group consisting of ethanol and isopropyl alcohol.

6. Composition according to any of the claims 1 to

5 , wherein the one or more structure providing compounds are chosen from the group consisting of guar gum, locust bean gum, xanthan and silicon dioxide (aerosil) .

7. Composition according to any of the claims 1 to

6, wherein the surfactant is saponins.

8. Composition according to any of the claims 1 to 7, wherein the composition further comprises 2-10% (w/w)

Aloe Vera.

9. Composition according to any of the claims 1 to 8, wherein the composition further comprises 1-10% (w/w) wax.

10. Composition according to any of the claims 1 to 9, comprising one or more compounds selected from the group consisting of vitamin A (carotene) , vitamin E (tocopherol acetate), menthol, and skin care products.

11. Composition according to any of the claims 1- 10, comprising: a) 2-10% (w/w) Aloe Vera; b) 4-11% (w/w) thistle oil; c) 0.1-0.42% (w/w) castor oil; d) 25-50% (w/w) ethanol; e) 0.2-0.8% (w/w) guar gum; f) 0.4-1.35% (w/w) xanthan; g) 0.3-1.4% (w/w) locust bean gum; h) 1-5% (w/w) silicon dioxide (aerosil) ; i) 0.1-0.5% (w/w) saponins; and j) 40-60% (w/w) water.

12 Composition according to claim 11, further comprising: k) 1-2% (w/w) boswellia serata extract

(soothex) .

13. Composition according to claim 11 or claim 12, further comprising:

1) 0.1-0.65% (w/w) menthol.

14. Composition according to any of the claims 11 to 13, further comprising: m) 0.001-0.005% (w/w) vitamin A

(caraotene) ; and n) 0.3-0.9% (w/w/) vitamin E (tocopherol acetate) .

15. Composition according to any of the claims 1 to 14, comprising: a) 5% (w/w) Aloe Vera; b) 7% (w/w) thistle oil; c) 0.3% (w/w) castor oil; d) 30% (w/w) ethanol; e) 0.5% (w/w) guar gum; f) 0.8% (w/w) xanthan; g) 0.8% (w/w) locust bean gum; h) 0.2% (w/w) saponins; i) 53.6% (w/w) water; j) 1% (w/w) boswellia serrata extract

(soothex) ; k) 0.3% (w/w) menthol;

1) 0.001% (w/w) vitamin A (carotene); m) 0.5% (w/w/) vitamin E (tocopherol acetate) ; and n) 3.5% (w/w) silicon dioxide (aerosil) .

16. Method for preparing a composition for use during shaving comprising: a) combining water, vitamin A (carotene) , saponins and Aloe Vera in the % (w/w/) of the total composition as defined in any of the claims 1 to 15 while heating; b) adding thereto, ethanol, vitamin E (tocopherol acetate), menthol, boswellia serrata extract (soothex) , thistle oil and castor oil in the % (w/w) of the total composition as defined in any of the claims 1 to 15, while vigorously stirring; c) adding thereto, guar gum, xanthan and locust bean gum in the % (w/w/) of the total composition as defined in any of the claims 1 to 15 while vigorously mixing; and d) silicon dioxide (aerosil) in the % (w/w/) of the total composition as defined in any of the claims 1 to 15.

17. Use of a composition according to any of the claims 1 to 15 for shaving.