GB2182943A - Hair shampoo comprising plant extract - Google Patents

Abstract

A shampoo for the treatment of hair and scalp, and other parts of the human body afflicted by lice, or for domestic animals, comprises an extract of garlic or parsley. Both extracts may be combined. There may be added further plant extracts, fragrances and adjuvants. The shampoo contains conventional detergents, preferably of the anionic type.

Description

SPECIFICATION Shampoo The invention relates to a shampoo which is of special useforthetreatmentofthe hair and the scalp of children. Amongst its activities there exists an outstanding effectivity against lice and other parasites. The shampoo is based mainly on certain plant extracts together with the required surface active agents (detergents).

There exists a wide variety of shampoos, some of which are effective against dandruff, againstvarious other afflictions of the scalp, etc. Most of these contain as active ingredient chemicals which may have a deleterious long-term effect.

The present invention is based on certain plant extracts and has a high effectivity, especially against parasites such as lice.

The shampoo of the present invention is based an plant extracts of a variety of plants, the most important ofthese being alium sativum and/or petroseiinum hortense (or sativum). The first ofthese is highly active.

The second can be used by itself and it also strongly enhances the activity ofthe extracts of alium sativum.

There may optionally be added extracts ofthe following (one or more) : dauctus carota, apium graveoulus, polygonum arenastrum (aviculare) and solanum tuberosum.

The extracts are obtained by conventional extraction methods, such as extraction in water or in an organic solvent. The shampoo comprises suitable detergents, diluents and if desired, fragrances. The detergents are conventional ones, anionic detergents being preferred.

According to a preferred embodiment of the invention, there is prepared an aqueous or alcoholic extract of crushed seeds of alum sativum. The extraction is best effected at an elevated temperature. When extraction is effected in an alcoholic medium,the alcohol is removed and recycled forfurther use. Afurther plantwhich is extracted is petroselinum hortense, and here the entire plant is best used fort7e extraction.

The extracts of the above are best combined; they can also be extracted together in one step. Each ofthem by itself is an active ingredient ofthe shampoo. The extraction can also be effected in an organic extractant such as hexane. After extraction, preferably under reflux, the hexane is removed by means of a rotatory vacuum evaporator, leaving as residue an aleo-resin mixture of the respective plant parts. This is combined with a suitable quantity of water and surfactants, if desired with the other ingredients.

Generally a quantity of oleo-resin or resins giving a final concentration in the shampoo of about 0.5 per cent to about 5 per cent by weight, is adequate for the desired effect.

When oleo-resins of alium sativum and ofpetroselinum are used in combination, these areadvan- tageously used in a weight ratio of from 1:1 to about 1:100.

The organic extractants can be recovered and used with further batches of the plants.

The extraction can also be carried out in water. In this case, the residue is filtered off and the resulting aqueous extract is used with a suitable quantity of surfactant and adjuvants. As regards the other plants: dauctus carota is comminuted and extracted; apium graveolus is comminuted and extracted (the whole plant); with polygonum arenastrum only the branches are extracted; and with solanum tuberosum thecomminuted plant. Amongst suitable detergents there may be mentioned coconut amido alkyl betaine; coconut diethanolamide, triethanolamine lauryl sulfate and alkanoylamide sulfosuccinate. Other non-ionic sur- factants may be used. There can be used fragrances in order to impartto the product a desired perfume.

The invention is illustrated with reference to the following examples which are to be construed in anon- limitative manner.

Example 1: Preparation ofplantextract A quantity of 1 kg of crushed petroselinum was introduced into 6 liters of water, the mixture was boiled under reflux for 6 hours, cooled and filtered off.

Example 2: Preparation ofplantextract An extraction was carried out as in Example 1, and the water was removed by treatment on a rotatory vacuum evaporator. There was obtained a quantity of about 55 g of oleo-resin mixture.

Example 3: Prepration ofplant extract: A quantity of 30 grams ofgarlic seeds was crushed and extracted by boiling for 10 minutes in 1 liter of water.

The mixture was cooled to ambienttemperature and filtered off, leaving an aqueous extract.

Example 4: Plant Extract: A quantity of 100 g of crushed garlic seeds was added to 600 ml hexane and refluxed for3 hours. The residue was cooled, evaporated on a rotatory vacuum evaporator. After removal of the hexane, there remained an oleo-resin which can be used in shampoos of the invention.

Example 5: Plant Extract: A quantity of 30 g crushed garlic seeds and 600 gpetroselinum was extracted under reflux in 3 liters of methanol. After cooling and filtering off, the methanol was removed on a rotatory vacuum evaporator. There remained an oleo-resin mixture.

Example 6: Detergent Mixture: A detergent mixturewas prepared containing: Coconut amido alkyl betaine 720.0g.

Coconutdiethanolamide 30.0g Triethanolamine lauryl sulfate 270.0 g Alkanolamide sulfosuccinate 75.0g Fragrance 5.0g Preservative (2-bromo-2-nitropropane 1,3-diol, BRONOPOL) 0.2 g Example 7: PlantExtract: There was prepared an extract of 500 g carrots, 500 g apium graveolus (in both cases the crushed whole plant), 500 g polygonum arenastrum branches and 500 g solanum tuberosum (crushed bulbs). These were extracted in a quantity of 8 liters of distilled water, as set out in Example 1 and the residue of the plant material was filtered off. 1 part byweight of the extract of Example 1 and 1 part byweight of the thus obtained extract were mixed with 2 parts by weight of an anionic detergent. A highly effective shampoo was obtained.

Example 8: SHAMPOO: A mixture was prepared consisting of 500 ml of the extract of Example 1 and 500 ml of the detergent composition of Example 6. The resulting shampoo was used daily for one week and resulted in a complete disappearance of lice.

Example 9: SHAMPOO: A quantity of 25 g of an oleo resin prepared according to the process of Example 2 was introduced into 500 ml water and 500 ml ofthe detergent mixture of Example 6 was added. The shampoo was used dailyfora week and resulted in the disappearance of lice.

Example 10: SHAMPOO: A quantity of5 g of oleo resin of Example 4was added to 500 ml water and 500 ml ofthe detergent mixture of Example 6was added. The shampoo was used dailyforwashing the hair and scalp and after one week lice had disappeared completely.

Example 11: SHAMPOO: Aquantitgof 20 g ofthe oleo-resin mixture of Example5 was introduced into 500 ml wateranf 500 g ofan anionic detergentwas added. The shampoo was a high efficacyagainst lice and other parasites of the scalp and hair.

Example 12: SHAMPOO: A quantity of 250 ml of the extract of Example 1 was mixed with 250 ml of the extract of Example 7 and 500 ml of a non-ionic detergent was added. The shampoo was effective against lice and other parasites.

There were prepared various other shampoo preparations-which contained a ratio of from about 1:1 by weight of the oleo-resin of examples 2 and 4 up to a weight ratio of 100:1 of these (garlicto petroselinum).

The shampoos were effective in combating afflictions by lice and other parasites afflicting the human hair and scalp. Experiments with dogs and other domestic animals gave highly satisfactory results in this respect.

There were also used other different detergent compositions ofthe type conventionally used with shampoos. All of these were suitable when used in combination with plant extracts according to the invention.

Claims (9)

1. Ashampooforthetreatmentofafflictions ofthe hairand scalp humans by parasites and especially lice, and for the treatment of domestic animals afflicted by such parasites, which comprises an extract of alium sativum, or an extract of petroselinum hortense (orsativum) in an aqueous medium, or in an alcoholic medium, in combination with a suitable surfactant or surfactant mixture, if desired with conventional adju vants.

2. A shampoo according to claim 1, where the extract is an extract of alium sativum.

3. A shampoo according to claim 1, where the extract is an extract of petroselinum hortense (orsativum).

4. A shampoo according to claim 1, where the extracts used are a combination of extracts of alium sativum and of petrolselinum,theweight ratio ofthe active ingredientcalculated on the oleo resins of these being inthe range offrom 1:1 and uptoabout1 :100.

5. Ashampoo according to any of claims 1 to 4, wherein the surfactant is an anionic surfactantorsurfactant mixture.

6. Ashampoo according to anyofclaims 1 to4, wherethe surfactant is a non-ionicsurfactant.

7. A shampoo according to any of claims 1 to 6, which contains in addition an extract of one or more ofthe following: dauctus, apium, solanum and polygonum.

8. A shampoo as claimed in any of claims 1 to 7, in which the detergent comprises one or more of coconut amido alkyl betaine, coconut diethanolamine, triethanolamine lauryl sulfate and alkanolamide sulfosuccinate.

9. A medical shampoo forthetreatmentofhairand ofthe scalp against lice, containing an extractofgarlic and/or parsley, substantially as hereinbefore described and with reference to the examples.