Hair and Skin Treatment Product Containing Aloe Vera Extract

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(12) EUROPEAN PATENT APPLICATION

(43) Date of publication: (51) Int. CI.6: A61 K 7/13, A61K7/135, 02.06.1999 Bulletin 1999/22 ^61 ^ 7/48 (21) Application number: 98203764.0

(22) Date of filing: 06.11.1998

(84) Designated Contracting States: (72) Inventor: Lizzi, Joseph AT BE CH CY DE DK ES Fl FR GB GR IE IT LI LU Bradford, Ontario L3Z IB4 (CA) MCNLPTSE Designated Extension States: (74) Representative: AL LT LV MK RO SI Barendregt, Frank, Drs. van Exter Polak & Charlouis B. V., (30) Priority: 06.1 1 .1997 US 965565 P.O. Box 3241 2280 GE Rijswijk(NL) (71) Applicant: Lizzi, Joseph Bradford, Ontario L3Z IB4 (CA)

(54) Hair and skin treatment product containing aloe vera extract

(57) A hair treating preparation for use as a component in hair dyeing and bleaching and for use in hair conditioning comprises a mixture of hydrogen peroxide, a component selected from the group consisting of silica gel, silicic acid anhydride and mixtures thereof, and a relatively small amount of Aloe vera gel. Prior to use, one or more leaves of an Aloe vera plant are placed in the mixture for at least 12 hours in order to dissolve active components from the leaf or leaves and then the undissolved remnants are removed. One preferred form of the preparation includes 20 volume hydrogen peroxide and an equal volume of water. The preparation can also be used for treating skin conditions such as a rash or eczema. A similar preparation can also be combined with one or more herbs to provide a health providing remedy that is applied to the skin.

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Description

[0001] This invention relates to compounds and preparations used for the purpose of hair coloring, hair conditioning and skin care, and including preparations for good health and remedies for conditions affecting health. 5 [0002] A variety of products and preparations are already known for both conditioning hair and for coloring the hair of humans. It is also well known to bleach or whiten hair using products such as hydrogen peroxide. Hair conditioners are commonly used to soften hair and to prevent hair from becoming damaged as a result of other types of hair treatments, such as hair shampoos. [0003] Hair coloring solutions and preparations have been used for years both by professionals and by end users at 10 home. However, there are some known problems that exist with existing hair coloring products, including the difficulty that many of these products have in covering grey hair adequately. Another problem is that hair coloring preparations and solutions can dry out fairly quickly, rendering them unsuitable for use. A further difficulty with hair treating products, including hair colorants, bleaches and shampoos, is that they can cause scalp irritation, particularly, if the user has sensitive skin. 15 [0004] United States patent No. 4,927,627 issued May 22, 1990 to Henkel Kommanditaesellschaft auf Aktien describes emulsion-foam hydrogen peroxide compositions in the form of an oil-in-water emulsion containing oil or fatty components, emulsifiers and hydrogen peroxide and, in addition, a thickening agent. These compositions are said to be particularly suitable as an oxidizing component in processes for the dyeing or lightening of hair resulting in improved depth of color. The oily component is selected from the group consisting of oils, fatty alcohols and mixtures thereof. 20 [0005] U.S. patent No. 4,656,029 issued April 7, 1987 to L'Oreal describes a cosmetic composition containing, as an agent protecting against light, pure aloesin or an aloe extract containing at least 40% of aloesin and less than 5% of barbaloin in a cosmetically acceptable medium. This cosmetic composition can be a sunscreen or a cosmetic stabilized against light and can be applied on skin or to hair. [0006] It is believed that the use of aloe extracts is widespread in the cosmetic field. The Aloe genus covers a wide 25 variety of species. Among the components which may appear in aloe extracts are barbaloin, aloe-emodin, aloenin, aloesin and aloesone. [0007] Extracts and gels produced from the Aloe vera plant, in particular the Aloe barbadensis Miller plant, are known to have beneficial health effects, including usefulness as antiseptics, analgesics, and as anti-inflammatory agents. It is also believed that the application of aloe vera gel to the skin can stimulate cell growth. It is recognized that aloe vera gel 30 has the ability to penetrate deeply into the layers of human skin. In its gel form it is a known remedy for burns and wounds. [0008] It is an object of the present invention to provide a novel hair treating preparation that can be used as a component in hair dyeing and bleaching and for use in hair conditioning and that can be readily produced using known components including hydrogen peroxide and aloe vera. 35 [0009] It is a further object of the present invention to provide a novel skin care preparation for use in treating skin conditions, such as a rash or eczema, which preparation can be made inexpensively using known, acceptable components including hydrogen peroxide and Aloe Vera. [0010] It is another object of the present invention to provide a preparation for use in skin treatment products and to provide additional health benefits using materials and components which are known per se including hydrogen peroxide 40 and a small, effective amount of Aloe vera. [001 1 ] According to a first aspect of the invention, a hair treating preparation for use as a component in hair dyeing and bleaching and for use in hair conditioning comprises a mixture of hydrogen peroxide; a component selected from the group consisting of silica gel, silicic acid anhydride, and mixtures thereof; and a relatively small amount of Aloe vera. This mixture is treated by placing one more leaves of an aloe plant in the mixture for at least about 12 hours in order to 45 dissolve active components from the leaf or leaves. Then the undissolved remnants of the leaf or leaves are removed prior to use of the preparation. [001 2] In a preferred form of the preparation, 20 volume hydrogen peroxide is used and the mixture includes approximately equal volumes of hydrogen peroxide and water. [0013] According to another aspect of the invention, a skin care preparation for use in treating skin conditions, such so as a rash or eczema, comprises a mixture of hydrogen peroxide having a strength ranging between 5 volume and 30 volume; a component selected from the group consisting of silica gel, silicic acid anhydride and mixtures thereof; and a relatively small amount of Aloe vera. In order to complete this preparation, one or more leaves of an aloe plant are placed in the mixture for at least about 12 hours in order to dissolve active components from the leaves and then the undissolved remnants of the leaves are removed prior to use of the preparation. 55 [0014] Preferably, the Aloe vera is provided as a pure gel in an amount at least about 1/4 ounce per an amount of hydrogen peroxide equivalent to four cups of 20 volume hydrogen peroxide. [0015] According to still another aspect of the invention, a preparation for use in skin treatment products and other health remedies comprises a mixture of hydrogen peroxide having a strength of at least 20 volume hydrogen peroxide,

2 EP 0 919 220 A2

water in an amount at least equal in volume to the volume of hydrogen peroxide; a component selected from the group consisting of silica gel, silicic acid anhydride and mixtures thereof; and a relatively small effective amount of Aloe vera. In order to complete the preparation, one or more leaves of an aloe plant are placed in the mixture for at least 12 hours in order to dissolve active components from the leaf or leaves and then the undissolved remnants of the leaf or leaves 5 are removed. [001 6] A preferred form of this preparation is prepared using 20 volume hydrogen peroxide which is mixed with water in a ratio of about 7 ounces hydrogen peroxide to 24 ounces of water. [0017] The Aloe vera component in the preparations of this invention can be produced from a variety of known aloe species. However, the most common species for the production of Aloe vera gel is Aloe barbdensis or Aloe barbadensis 10 Miller and this is the preferred species for the Aloe vera gel used in this invention. For purposes of the leaves used in producing the preparations described herein, the leaves that were used came from aloe plants sold under the name ALOE VARIEGATA. However, the leaves from Aloe barbadensis Miller plants can be used in the production of preparations according to this invention. It is further believed that leaves from other aloe plant species can also be used, if desired. 15 [0018] According to a first embodiment of the invention, a preferred hair treating preparation for use as a component in hair dyeing and bleaching and for use in hair conditioning can be produced by mixing thoroughly the following components in a suitable container:

4 cups of 20 volume hydrogen peroxide (hereinafter sometimes referred to as HP); 20 4 cups of distilled water; 1 ounce of silica gel; and 1/4 ounce of Aloe vera gel (freshly pressed).

[0019] After the above ingredients have been thoroughly mixed, two normal size leaves of the aforementioned Aloe 25 vera plant (freshly picked) are placed in the mixture in order to dissolve the active components of the leaves into the mixture. The leaves can be left in the mixture for as long as 48 hours or longer, if desired. The undissolved remnants of the leaves are then removed from the mixture before it is used as a hair treating preparation. [0020] The aforementioned preparation can be mixed with existing hair coloring products to provide an improved hair coloring preparation that has a substantially longer shelf life and that is better able to cover grey hair, a well known prob- 30 lem with many existing hair coloring preparations. Also, use of the present hair treating preparation with existing hair coloring products has been found to increase the length of time that the hair coloring lasts and to reduce substantially or eliminate the harm that can be caused to a user's hair with existing hair coloring products. [0021 ] Also, tests conducted with the use of the present hair treating preparation in combination with known hair coloring products have shown that the use of applicant's preparation can increase the speed of the hair coloring process or 35 the bleaching process, if a bleach is being used. Further, a truer colour will result with the use of applicant's preparation without an undesirable mineral oil build-up. [0022] With respect to the improved shelf life of hair coloring compounds or bleaching compounds when combined with the present hair treating preparation, tests have shown that the mixed combination of applicant's preparation and a known hair coloring product or bleach will generally last and remain usable for a 24 hour period. In addition, this mix- 40 ture will remain moist for up to four days and, even after this period of time, simply by adding further hydrogen peroxide to the mixture, the preparation will be restored to a usable state that can still be used for coloring hair or bleaching hair. [0023] The hair treating preparation of the present invention as described above is also very useful either when used alone or in combination with existing known hair conditioners for conditioning hair and making it soft, manageable and easy to comb, even after drying. Use of the present preparation will leave the user's hair shiny, giving it a very attractive 45 appearance. [0024] The above described preparation is also extremely useful as a skin care preparation capable of treating skin conditions such as rashes and eczema. Regular use of the preparation on skin over a period of time can relieve itching and reduce redness. The preparation can help to soften rough, damaged skin. In one test of the preparation, regular use of the preparation over a period of eight days resulted in substantial improvement to a user's hands which were dry so and cracked. [0025] The following examples illustrate the invention without, however, restricting it.

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EXAMPLE 1

[0026]

20 volume hydrogen peroxide 4 cups (32 ounces) silica gel 2 ounces 10 Aloe vera gel (freshly pressed) 1 ounce leaves of Aloe vera plant 2

[0027] The hydrogen peroxide, silica gel and Aloe vera gel are thoroughly mixed in a suitable container, for example, 15 a container approximately 1 litre in size. Then the Aloe vera plant leaves are placed in the mixture for a period of 24 hours in order to permit the active components in the leaves to be dissolved and then the undissolved remnants of the leaves can be removed prior to use of the preparation. [0028] The resulting preparation was used and tested with known hair coloring products and found to provide distinct hair coloring advantages as indicated above, including faster and more even hair coloring, without undesirable skin irri- 20 tation. [0029] The preparation of Example 1 was also tested without the use of any leaves from an Aloe vera plant and, although the resulting preparation was found to be still useful for hair coloring purposes and to have advantages over existing hair colouring components, the preparation did cause some skin irritation in a few cases where the user had sensitive skin. 25 EXAMPLE 2

[0030]

20 volume hydrogen peroxide 4 cups silica gel 6 ounces 35 Aloe vera gel 1/4 ounce Aloe vera leaves 2 leaves

[0031] Again, the hydrogen peroxide, silica gel and Aloe vera gel were mixed thoroughly and then the two Aloe vera 40 leaves were placed in the mixture for 24 hours in order to dissolve the active components, the leaf remnants thereafter being removed. It was found that this preparation was less desirable than the preparation of Example 1 as the silica gel did not dissolve completely and the preparation had a less pleasant feel than that of Example 1 . Nevertheless, testing of this preparation indicated that it did have some of the advantages of Example 1 when used in conjunction with hair coloring or hair bleaching products. 45 EXAMPLE 3

[0032]

30 volume hydrogen peroxide 4 cups silica gel 3 ounces 55 Aloe vera gel V2 ounce Aloe vera leaves 2 leaves

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[0033] As in Example 1 , the hydrogen peroxide, silica gel and Aloe vera gel were mixed thoroughly and then the two Aloe vera leaves were placed in the mixture for a 24 hour period in order to dissolve the active components in the Aloe vera leaves. The remnants of the leaves were then removed prior to use of the preparation for hair coloring and hair bleaching. 5 [0034] Testing of this preparation found it to be excellent for both hair coloring and hair bleaching and also very useful as a hair conditioner. The preparation was found to have the same advantages for hair coloring and hair bleaching as the first described preparation set out above and Example 1 .

EXAMPLE 4 10 [0035]

15 30 volume hydrogen peroxide 4 cups silica gel 2 ounces Aloe vera gel 1 ounce Aloe vera leaves 2 leaves 20

[0036] The same procedure was followed as stated above for Example 3, the two leads being allowed to dissolve in the mixture for a period of 24 hours. However, in this case, the resulting preparation, when tested, was found to be less desirable as a hair treatment preparation as it resulted in some skin irritation. This was felt to be due to the relatively 25 high strength of the hydrogen peroxide combined with the relatively low amounts of silica gel and Aloe vera gel. [0037] With respect to the strength of the hydrogen peroxide that should be used to make the hair treating preparation of the invention, as indicated, both 20 volume and 30 volume hydrogen peroxide have been tested and have proven to work satisfactorily for hair treatment including hair coloring and hair conditioning but 40 volume and 60 volume hydrogen peroxide, unless substantially diluted with water, are too harsh for most human skin and therefore are not recom- 30 mended for use in the preparation of the invention. On the other hand, a hydrogen peroxide solution which is too weak would result in a preparation that would have few, if any, advantages. Accordingly, 2.5 volume hydrogen peroxide is not recommended. Ten volume hydrogen peroxide that has not been diluted further with water or distilled water is the minimum strength that should be used in making a hair treating preparation while 5 volume hydrogen peroxide (that has not been diluted further) is the minimum strength that should be used for a skin care preparation made in accordance 35 with this invention (see further below).

EXAMPLE 5

[0038] 40

20 volume hydrogen peroxide 7 ounces water 24 ounces soya bean oil 5 ml garlic clove 5 ml silica gel 1 ounce aloe vera gel (freshly pressed) 1/4 ounce

[0039] All of the above ingredients were combined in a suitable container and mixed thoroughly. The resulting preparation is a good preparation for skin care and, in particular, for treating skin conditions such as infected skin, rashes 55 and pimples.

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EXAMPLE 6

[0040]

20 volume hydrogen peroxide 7 ounces water 24 ounces chickweed 5 ml silica gel 1 ounce Aloe vera gel (freshly pressed) 1/4 ounce

[0041 ] These ingredients were mixed thoroughly in a suitable container. The resulting preparation is useful in healing wounds, in relieving joint pain, and in the treatment of skin rashes or eczema.

EXAMPLE 7

[0042]

20 volume hydrogen peroxide 7 ounces water 24 ounces rosemary 5 ml silica gel 1 ounce aloe vera gel (freshly pressed) 1/4 ounce

[0043] The above listed ingredients were mixed thoroughly. The resulting preparation can be used as a final rinse after hairwashing or other hair treatment in order to treat or prevent dandruff.

EXAMPLE 8

[0044]

20 volume hydrogen peroxide 7 ounces water 24 ounces ginseng (Panax ginseng extractum) 1 0 ml silica gel 1 ounce Aloe vera gel (freshly pressed) 1/4 ounce

[0045] Again, the above listed ingredients are mixed thoroughly to produce a skin applied preparation. The resulting preparation, when applied in effective amounts to the skin, can act as a stimulant and can help improve the user's immune system by being absorbed into the skin. EP 0 919 220 A2

EXAMPLE 9

[0046]

20 volume hydrogen peroxide 7 ounces water 24 ounces horsetail herb 5 ml silica gel 1 ounce Aloe vera gel (freshly pressed) 1/4 ounce

15 [0047] Again, the above listed ingredients are mixed thoroughly in a suitable container. The resulting skin care preparation can be used to help stop minor bleeding and as an anti-inflammatory tissue healer. The same preparation can also be used to treat acne conditions and eczema.

20 EXAMPLE 10

[0048]

25 20 volume hydrogen peroxide 7 ounces water 24 ounces burdock root 5 ml silica gel 1 ounce Aloe vera gel (freshly pressed) 1/4 ounce

35 [0049] The above listed ingredients were thoroughly mixed. The resulting preparation can be applied to a person's skin and is useful as a skin cleanser and to heal skin blemishes.

EXAMPLE 11

40 [0050]

20 volume hydrogen peroxide 7 ounces water 24 ounces Ma Haug herb 5ml silica gel 1 ounce Aloe vera gel (freshly pressed) 1/4 ounce

[0051] The above listed ingredients were mixed thoroughly in a suitable 1 liter container. The resulting preparation, when applied to a person's skin, is absorbed into the skin and acts as a tonic, increasing the user's energy levels. 55

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EXAMPLE 12

[0052]

20 volume hydrogen peroxide 7 ounces water 24 ounces yellow dock 5ml silica gel 1 ounce Aloe vera gel (freshly pressed) 1/4 ounce

[0053] The above listed ingredients were mixed thoroughly. The resulting preparation is a useful skin preparation that can be used to treat skin conditions such as minor skin eruptions and boils.

EXAMPLE 13

[0054]

20 volume hydrogen peroxide 7 ounces water 24 ounces silica gel 1 ounce Aloe vera gel 1/4 ounce soya bean oil 50 ml garlic clove 5 ml chickweed 5 ml ginseng (panax ginseng extractum) 5 ml horsetail 5 ml

[0055] All of the above listed ingredients were mixed thoroughly in a suitable mixing container. The resulting preparation has beneficial health effects when applied in effective amounts to the skin in affected areas. In particular, the preparation is useful for treating sprains and the pain caused thereby and for the treatment of other types of localized pain. One major advantage of this preparation is that it can be applied directly and externally to the skin area and it avoids the need to take any of the herbal remedies internally by means of a tea or otherwise. Also, when the herbs are mixed with the basic mixture of the invention, the effective shelf life of the preparation is quite long. In fact, tests have shown that the shelf life for such preparations in a sealed container is at least 4 months. [0056] Although the above-mentioned examples or preparations made according to the invention have been made using silica gel, silicic acid anhydride could be used instead in the making of these preparations and also various mixtures of silica gel and silicic acid anhydride. One particularly suitable silica gel product is that sold by Naka Sales Lim- ited of Toronto, Ontario, bearing number 52144-03R. This particular product is manufactured in Germany and includes silicic acid anhydride in the mixture. [0057] With respect to the minimum or maximum amounts of silica gel or silicic acid anhydride that should be used in the preparation, testing has shown that if the amount of silica gel is reduced to only one half ounce per four cups of 20 volume hydrogen peroxide, the resulting preparation is not as satisfactory as where greater amounts are used (see above samples). Some skin irritation, probably due to the hydrogen peroxide resulted where the silica gel was reduced to this low level. Also, testing has shown that greater amounts of silica gel and Aloe vera gel can be used when hydrogen peroxide having a strength substantially greater than 20 volume hydrogen peroxide is used. [0058] With respect to the amount of Aloe Vera gel that can be used in the preparation, tests have also shown that

8 EP 0 919 220 A2 substantially increased amounts of Aloe vera gel (higher than the amounts indicated in the above examples) resulted in preparations that did not work as well. With increased amounts, the Aloe vera gel does not dissolve properly and the resulting preparation is less creamy. It is therefore recommended that the amount of Aloe vera gel per four cups of 20 volume hydrogen peroxide not exceed 2 Vi ounces. Tests have also shown that reducing the amount of Aloe vera gel to substantially less than 1/4 ounce per four cups of 20 volume hydrogen peroxide also results in a preparation that is less satisfactory because it can cause some skin irritation in some users. It is recommended that no less than a minimum 1/8th ounce of Aloe vera gel be used for every four cups of 20 volume hydrogen peroxide and preferably one quar- ter ounce of gel for this amount of hydrogen peroxide. [0059] Tests have also been conducted on applicant's preparation using hydrogen peroxide, silica gel and Aloe vera gel but without the subsequent dissolving of leaves of an aloe plant in the mixture and without the use of any herbs. Such tests have shown that the resulting preparation is not as satisfactory for hair treating or hair conditioning as the preparation made with the use of one or more dissolved leaves from an Aloe vera plant. When the step of dissolving leaves in the mixture is not used, more skin irritation can result from use of the preparation. It appears that the hydrogen peroxide in this preparation (without the active components from the leaves) causes some burning effect that is notice- able by at least some users of the product. [0060] It will be readily apparent to those skilled in the present art that various modifications and changes can be made to the described hair treating and skin care preparations without departing from the spirit and scope of this invention. Accordingly, all such modifications and changes as fall within the scope of the appended claims are intended to be part of this invention.

Claims

1 . A hair treatment preparation for use as a component in hair dyeing and bleaching and for use in hair conditioning comprising a mixture of:

(a) hydrogen peroxide; (b) a component selected from the group consisting of silica gel, silicic acid anhydride and mixtures thereof; and (c) a relatively small amount of Aloe vera; wherein one or more leaves of an Aloe plant have been placed in said mixture for at least about 12 hours in order to dissolve active components from the leaf or leaves and then undissolved remnants of said leaf or leaves are removed prior to use of said preparation.

2. A hair treating preparation according to claim 1 wherein said hydrogen peroxide is 20 volume hydrogen peroxide and said mixture includes approximately equal volumes of said hydrogen peroxide and water.

3. A hair treating preparation according to claim 1 or 2 wherein the leaf dissolving step includes dissolving two leaves of an Aloe vera plant in said mixture for at least about 24 hours in order to dissolve components from said leaves and then the undissolved remnants of said leaves are removed prior to use of said preparation.

4. A hair treating preparation according to claim 2 wherein said Aloe vera is a gel present in said mixture at a level of about 1/4 ounce per 4 cups of 20 volume hydrogen peroxide.

5. A skin care preparation for use in treating skin conditions, such as a rash or eczema comprising a mixture of:

(a) hydrogen peroxide having a strength ranging between 5 volume and 30 volume; (b) a component selected from the group consisting of silica gel, silica acid anhydride, and mixtures thereof; and (c) a relatively small amount of Aloe vera, wherein one or more leaves of an Aloe plant have been placed in the aforementioned mixture for at least about 12 hours in order to dissolve active components from said leaf or leaves and then the undissolved remnants of said leaf or leaves are removed prior to use of said preparation.

6. A skin care preparation according to claim 5 wherein said hydrogen peroxide is at least 20 volume hydrogen peroxide and said mixture includes approximately equal volumes of said at least 20 volume hydrogen peroxide and water.

7. A preparation for use in skin treatment products and other health improvement remedies, said preparation comprising a mixture of EP 0 919 220 A2

(a) a premixed preparation prepared in accordance with claim 1 ; and (b) water in an amount at least equal in volume to the volume of said premixed preparation.

. A preparation according to claim 7 wherein said premixed preparation is mixed with said water in a ratio of about 7 ouces premixed preparation to 24 ounces of water.

. A pain relieving product to be applied to the skin in an affected region of the human body, said product comprising a mixture of the preparation of claim 7 or 8, garlic clove, chickweed, ginseng, horsetail, and soya bean oil, wherein the volume of soya bean oil substantially exceeds the total volume of garlic clove, chickweed, ginseng and horsetail.

0. A preparation for use in skin treatment products and other health improvement remedies, said preparation comprising a mixture of

(a) a premixed preparation comprising an initial mixture of hydrogen peroxide; a component selected from the group consisting of silica gel, silica acid anhydride and mixtures thereof; and a relatively small amount of Aloe vera, wherein one or more leaves of an Aloe plant have been placed in said initial mixture for at least about 12 hours in order to dissolve active components from the leaf or leaves; and (b) water in an amount by volume substantially in excess of the volume of said premixed preparation.