Topical composition

Abstract

The invention discloses a therapeutic topical composition, includes an extract of Galenia Africana having anti-microbial and anti-oxidant action. The composition includes rooibos and/or an extract from rooibos tea plant. The composition is adapted for regenerating skin, stimulating cyto-keratin production, treating human external fungal infections and/or conditions, human skin bacterial conditions, psoriasis, psoriasis plaque, dandruff, acne, bacterial acnes, eczema, athletes' foot, nappy rash, baby rash and/or lesions and/or being used for anti-septic wound treatment, and/or treating Propionibacterium acnes and/or staphylococcus epidermidis.

Claims

1. A therapeutic topical composition, comprising a therapeutically effective amount of an extract of Galenia africana, wherein the extract has anti-microbial and anti-oxidant activity, and wherein the composition further comprises a therapeutically effective amount of rooibos and/or an extract from rooibos tea plant.

2. The composition of claim 1, wherein the composition is a leave-on or wash-off personal care product, and wherein the composition is a soap, shampoo, skin moisturiser, toner, salve, cream, balm or body wash.

3. The composition of claim 1, further comprising mono propylene glycol, wherein the composition comprises about 70% mono propylene glycol and about 30% of the Galena africana extract.

4. The composition as claimed in claim 1, further comprising deionized water, in an amount of 25.5%, monopropylene glycol, in an amount of 47%, and Sodium C14-17 Sec Alkyl Sulfonate (SAS93), in an amount of 7.7%, wherein the G. africana extract is the KB05 extract, wherein the KB05 extract is in an amount of 20%, and wherein the G. africana extract comprises bioflavonoids.

5. The composition as claimed in claim 1, further comprising monopropylene glycol, in an amount of 60%, and polysuganate 160, in an amount of 20%, wherein the G. africana extract is the KB05 extract, wherein the KB05 extract is in amount of 20% and wherein the G. africana extract comprises bioflavonoids.

6. The composition as claimed in claim 1, wherein the G. africana extract comprises bioflavonoids, and wherein the amount of the bioflavonoids is between 0.2 to 5.0% by weight.

7. The composition of claim 1, wherein the viscosity of the composition can be adjusted by adding a polymeric gelling agent.

8. The composition as claimed in claim 1, further comprising the following ingredients at the following concentrations: TABLE-US-00013 % w/w Deionised water 40.00 Whole milk 13.30 Sodium cocoyl glutamate 10.00 Sodium N lauroylsarcosinate 10.00 Sodium laurelglucosides hydroxypropyl sulphonate 10.00 D panthenol 0.5 Betain 0.5 Propylene glycol 4.0 Cocamidopropyl hydroxysultaine 5.0 Propylene glycol + KBO5 5.0 Phenethyl alcohol 0.5 Citric acid ±0.2 (to pH 6.5) Xanthan gum 1.0 Total 100.0

9. The composition as claimed in claim 1, further comprising cocamidopropyl hydroxysultaine.

10. The composition of claim 1, further comprising a vitamin, wherein the vitamin is D-panthenol or vitamin B5 (panthothenic acid), wherein the vitamin is a nutrient that is easily absorbed by hair and skin, and wherein the vitamin has conditioning properties.

11. The composition as claimed in claim 1, further comprising natural betain, wherein the natural betain is a natural ingredient from sugar beet that has the ability to penetrate the skin and hair and act as a moisturiser and has the added advantage of reducing skin irritation.

12. The composition as claimed in claim 1, further comprising cosmetic grade xanthan gum, which is added to increase the viscosity of the product, and to improve foaming properties and skin feel.

13. The composition as claimed in claim 1, further comprising citric acid to adjust the pH.

14. The composition as claimed in claim 1, further comprising whole mammalian milk.

15. The composition as claimed in claim 1, further comprising the following ingredients at the following concentrations: TABLE-US-00014 % w/w Deionised Water 21.3 Laurel Glucoside 20.00 Sodium laureth sulphate 40 Cocoamidopropyl betain 10.00 D panthenol 0.5 Betain 0.5 Sodium chloride 5.0 Propylene glycol + KBO5 2 Phenethyl alcohol 0.5 Citric acid ±0.2 (to pH 6.5) Total 100.0

Description

DETAILED DESCRIPTION OF INVENTION

(1) The invention will now be described by way of example.

(2) According to the invention, a therapeutic topical composition includes an extract of Galenia Africana.

(3) The topical composition is adapted for regenerating skin, stimulating cyto-keratin production, treating human external fungal infections and/or conditions, human skin bacterial conditions, psoriasis, psoriasis plaque, dandruff, acne, bacterial acnes, eczema, athletes' foot, nappy rash, baby rash and/or lesions and/or being used for anti-septic wound treatment, and/or treating Propionibacterium acnes and/or staphylococcus epidermidis.

(4) The topical composition includes personal care products such as soaps, shampoos, skin moisturiser, toner, salves, creams, balms and/or body wash formulations.

(5) The topical formulation includes active and inactive ingredients in order to improve the activity of KB05.

(6) The most important and/or dominant active ingredient is KB05.

(7) The topical composition may include rooibos and/or an extract from rooibos tea plant.

(8) Concentrations

(9) Different concentration are used for different formulations and applications. KBO5 is formulated into a liquid concentrate by dissolving the material in glycol and then is combined with different anionic surfactants depending on the end application. The following list of concentrates serve as examples.

(10) TABLE-US-00007 Ingredients Formulation A Formulation B Formulation C De ionised water 25.5 Mono propylene 70.0 47 60 glycol KBO5 30.0 20.0 20 SAS 93 7.5 Polysuganate 160 20.0 Total 100.00 100.0 100.0
Shampoo and Body Wash Containing KBO5

(11) The formulations include KBO5 at a therapeutic level, however, it is more cost effective to apply a KBO5 containing salve or cream to the affected area where the concentration can be increased and the active ingredient remains in contact with the affected area for a longer period. Wash off products are important to complement the effect. There are many formulations that can be used and the concentrations of KBO5 between 0.2 to 5.0% are relevant to this category of product. An example of a very mild formulation and a more conventional formulation are given.

(12) Very Mild Formulation D

(13) It was found that formulation C had a viscosity reducing effect on the shampoo formulations that rely on a surfactant electrolyte interaction to build viscosity. Formulation C contained a high proportion of glycol which is essential for the solubilisation of KOB5 but it also reduces the thickening effect of anionic surfactants that interact with electrolytes such as sodium chloride to form syrupy gels. In addition the most efficient surfactants that have this effect such as Sodium laurel ether sulphate are also widely regarded by “natural product” purchasers as being “bad chemicals”.

(14) Tests showed that the desired viscosity could only be achieved using polymeric gelling agents. Non-ionic surfactants were avoided due to their historical negative impact on phenolic compound biological efficacy.

(15) TABLE-US-00008 Formulation D Ingredients % w/w Deionised water 40.00 Goat milk 13.30 Sodium cocoyl glutamate 10.00 Sodium N lauroylsarcosinate 10.00 Sodium laurelglucosides hydroxypropyl sulphonate 10.00 D panthenol 0.5 Betain 0.5 Propylene glycol 4.0 Cocamidopropyl hydroxysultaine 5.0 Propylene glycol + KBO5 5.0 Phenethyl alcohol 0.5 Citric acid ±0.2 (to pH 6.5) Xanthan gum 1.0 Total 100.0

(16) The ingredients have the following functions: (a) Plantapon ACG, Crodasinic LS30 and polysuganate 160N are all very mild anionic surfactants that work together to give rich creamy foam that helps to reinforce the goats milk creaminess perception. (b) Colateric CBS is an amphoteric surfactant that helps to stabilise the foam of the anionic surfactants and adds to surfactant mildness. This can be replaced by cocoamidopropyl betain which is also naturally derived but thought to be mildly irritating. (c) D Panthenol or vitamin B5 is a nutrient that is easily absorbed by hair and skin with conditioning properties. (d) Betafin BP 20 is a natural ingredient from sugar beet that has the ability to penetrate the skin and hair and act as a moisturiser, it has the added advantage of reducing skin irritation. (e) Keltrol CG is a cosmetic grade of xanthan gum which is added to increase the viscosity of the product, improve foaming properties and skin feel. Xanthan gum can give a congealed viscosity and levels will have to be adjusted to achieve desired results. The viscosity is not affected by propylene glycol and other glycols and the material is completely naturally derived. (f) Citric acid is added to adjust the pH. The ideal pH of personal care products is 5.5. However, milk curdles in acidic environments and so we have aimed at a pH of 6.5, close to neutral. (g) Phenethyl alcohol is a nature identical material. The natural product is found in roses and is added as a preservative. The natural product is available but is expensive. (h) Goat Milk is added for its perceived beneficial properties.
Conventional Formulation E

(17) Formulation E is a concentrated shampoo formulation allowing a small container to be used for many applications of the product for example using a pump action dispenser. This formulation can be varied to enable it to be suitable as a shampoo, body wash or hand wash. The KBO5 level can also be varied between 0.5 and 5% as required.

(18) TABLE-US-00009 Formulation E Ingredients % w/w Deionised Water 21.3 Laurel Glucoside 20.00 Sodium laureth sulphate 40 Cocoamidopropyl betain 10.00 D panthenol 0.5 Betain 0.5 Sodium chloride 5.0 Propylene glycol + KBO5 2 Phenethyl alcohol 0.5 Citric acid ±0.2 (to pH 6.5) Total 100.0

(19) This formulation is much simpler to manufacture from readily available raw materials and the surfactants are all produced using naturally derived raw materials in this case.

(20) Toiletry Soap

(21) KBO5 can be incorporated into a toiletry soap made by industrial methods or from handmade soap without removing the glycerine.

(22) Handmade Soap

(23) It is possible to produce soaps by reacting fats or fatty acids with a strong alkali with a minimum amount of water and allowing fats and oils to be saponified. The triglyceride bond is broken, liberating free fatty acids which are neutralised by the alkali to form the salt or soap and glycerine which in industrial processes is removed but in many of the handmade soaps is left in place to act as a moisturiser.

(24) The KOB5 can be added to the soap soon after addition of the alkali in liquid, for example Formulation A or preferably Formulation C where the polysuganate assists with even dispersion of the KOB5 and improves the cleansing properties of the soap bar.

(25) The mixture is then cast into moulds and allowed to be fully neutralised before demoulding and packing.

(26) The KOB5 concentration can range from 0.1 to 2.0% in this type of soap.

(27) Industrial Scale Soap

(28) It is general practice for soaps to be produced on industrial scale either in a batch process or in a continuous process. The principle is the same as for handmade soap but most of the glycerine is removed together with the water that is required for the saponification reaction to take place. In the batch process, fat is heated up together with water and a strong alkali, normally sodium hydroxide. After saponification, salt is added to the water which causes the soap to separate from the glycerine and water and float to the surface. The glycerine containing salty water or brine is drained off leaving behind the soap which is further refined and eventually extruded into noodles.

(29) The noodles are then mixed together with other ingredients such as stabilisers, fragrance and colour and milled to ensure intimate mixing before being extruded and cut and pressed into its final shape.

(30) KOB5 is most conveniently added at the stage when fragrances, etc. are added and then milled, preferably through a triple roll mill, and extruded.

(31) As with handmade soap either Formulation A or Formulation C could be used as the source of KOB5 for this soap. It is also possible to finely grind the KOB5 and add this fine powder at the same stage, but using this method runs the risk of visible dark spots if the grind is not fine enough.

(32) The KOB5 concentration can range from 0.1 to 2.0% in this type of soap.

(33) Creams and Salves

(34) The full benefit of KBO5 is best achieved using leave on products. These can be produced in a number of ways such as wax thickened oils, mineral thickened oils and oil water emulsions.

(35) Wax Thickened Oil

(36) Beeswax or microcrystalline paraffin wax has been used traditionally to increase the viscosity of pastes and salves containing natural or synthetic oils such as almond oil and mineral oil respectively. KBO5, which is not very oil soluble, can be included in these formulations by using a surfactant based mixture such as Formulation A which is preferred because of the mild nature of the surfactant.

(37) TABLE-US-00010 Wax thickened oil examples (Heavy paste -water resistant) Ingredients Formulation F Formulation G Beeswax white 8.0 Coconut oil 36.9 Castor oil 5.0 20.0 Rice bran oil 45.0 Vitamin E 0.1 Formulation C 5.0 10.0 Coronet Lanolin — 70.0 Total 100

(38) All the ingredients besides Formulation A are combined and heated to 70° C. to form a clear homogeneous mixture. The ingredients are allowed to cool to about 50° C. before blending in Formulation C and hot filled into tins or glass jars producing a product with the consistency of Tiger Balm.

(39) Mineral Thickened Oil

(40) It is possible to produce a balm or salve that is cold processed using natural or synthetic oily substances that are mixed with finely divided minerals to increase the viscosity to the desired level. Fumed silica is particularly effective in achieving the desired effect; lower levels of fumed silica can result in a gel-like product that is quite flow-able and higher levels can be used to achieve a more pasty consistency. The oily substances can be chosen to enhance penetration or reduce penetration into the skin. Higher levels of KOB5 can be achieved using this type of formulation. An antioxidant such as vitamin E can be added if required, however, KOB5 is expected to have good antioxidant properties in its own right.

(41) TABLE-US-00011 Mineral thickened paste examples (suitable for tube filling) Formulation H Formulation I Ingredients (penetrating) (non-penetrating) Floraester 15 (Jojoba ester) 50.0 — Dimethyl sorbide 10.0 — Castor oil 10.0 10.0 Aerosil 200 (fumed silica)  8.0 8.0 Medium chain triglyceride — 60.0 Formulation C 22.0 22.0

(42) Oils are mixed together before adding the fumed silica and blended to form a paste after which the Formulation C is blended in.

(43) The formulation is produced cold and can also be cold filled with a piston filler into tubes or tubs etc.

(44) Emulsion Based Creams and Lotions

(45) Most modern creams and lotions are based on non-ionic surfactant emulsifiers. This is not an option for KBO5 as biological efficacy is reduced. Anionic surfactants such as SAS, laurel sulphates and most preferably sulphonated alkyl polyglucosides such as polysuganate used in Formulation C are suitable as emulsifiers. The amount of oil and wax can be adjusted in order to give products of different viscosities. Emollients with penetrating properties such as dimethyl sorbide or isopropyl myristate can be included to enhance absorption of the KBO5.

(46) TABLE-US-00012 Pumpable cream formulation example ingredients % w/w Formulation J Oil phase Cetyl alcohol 5.0 Glycerol monostearate 3.0 Coconut oil 15.0 Vitamin E 0.05 Water phase Deionised water 55.75 Betaine 1.0 Xanthan gum 0.2 Formulation C 20.0 Total 100.0

(47) A typical manufacturing procedure is as follows: (a) Oil phase is heated to 70° C. separately and mixed until completely dissolved; (b) Water phase ingredients blended together and heated to 70° C.; (c) Water phase added to oil phase slowly under high shear; and (d) The products are stirred slowly until cool and then packed into suitable containers.

CONCLUSION

(48) There are many potential applications for the KBO5 containing concentrates. As can be seen from the examples given, the concentrates allow the inclusion of KBO5 in a convenient manner and the concentrates remain stable on shelf until required for formulating.