SPRAYABLE COSMETIC SUNSCREEN COMPOSITION

This invention relates to a sprayable sun protection composition. More particularly, the invention relates to a composition formulated as a gel-spray having a Sun Protection Factor (SPF) greater than or equal to 25. The invention also relates to a method for manufacturing ^■ such a sprayable sun protection composition as well as its use, in particular for protecting the skin from UV-A and/or UV-B radiation.

Solar radiation is known to have beneficial effects but especially harmful effects in Man. Solar radiation has in particular an anti-rickets action, by assisting in the synthesis of vitamin D, improves certain dermatoses, has an antidepressant action, and allows the skin to darken. However, overexposure to solar radiation can induce an alteration of the skin.

Solar radiation comprises ultraviolet (UV) radiation which is very powerful. Among ultraviolet radiation, only UV-A and UV-B radiation reach the earth and have effects on the skin. UV-C radiation is stopped by the ozone layer.

UV-A rays, with wavelengths between 320 and 400 nm, cause the skin to darken. They are present all throughout the year and even in cloudy weather. They represent 95% of the UVs that touch the surface of the earth. Contrary to UV-B radiation, they are painless and can penetrate the skin very deeply, to the cells of the dermis. UV-A radiation in particular causes:

photo-ageing, i.e. the modification of the orientation of the elastin and collagen fibres, causing a slackening and a loss of firmness of the ^' skin and a premature ageing by the appearance of wrinkles;

Sun allergies or photo-allergies (redness, itching, summer lucitis);

- Pigmentary disorders (pregnancy mask, freckles) ; and

- The development of skin cancers.

As such, during an exposure to natural or artificial rays, it is important to filter the UV-A radiation.

UV-B rays, with wavelengths between 280 and 320 nm are high in energy. UV-B rays are responsible for tanning but also for burns (sunburn) as well as allergic reactions and skin cancers.

In light of the above, it therefore appears essential to protect the skin from both UV-A radiation and from UV-B radiation.

Many sun protection compositions (UV-A and/or UV-B) have been proposed to date. Such compositions comprising several sun filters are in particular described in document FR 2975590 or in document FR 2983718.

There is however a need to develop sun protection compositions that are easy and fast to apply, and which are simple to use.

Such sun protection compositions must moreover comply with the regulations in terms of SPF (Sun Protection Factor.

Sun protection compositions that have a high SPF are primarily in the form of viscous creams or gels. This type of formulation makes their spreading on the skin generally long and tedious. There remains therefore a need to have a wide range of sun protection compositions, which are easy to apply and stable.

According to a first aspect of the present invention, there is provided a sprayable sun protection composition comprising, in a physiologically acceptable medium, at least one UV filter and at least one emollient, wherein it further comprises an emulsion stabilizing and viscosity controlling agent, a chelating agent, and a surfactant. In a preferred embodiment, the composition does not contain xanthan gum.

Surprisingly, the applicant has revealed that it was possible to develop sun protection compositions with high sun protection i.e. that have an SPF (Sun Protection Factor) greater than or equal to 25, that can be sprayed and that as such facilitate their application on the skin. The sprayable sun protection compositions according to the invention make it possible to apply one or several sun filters over a large surface of the skin, faster in relation to the conventional sun protection compositions. Moreover, the sun protection compositions according to the invention have good stability and do not require the use of the gelling agent xanthan gum, also marketed in particular under the name Xantural™ 75.

More preferably, the sun composition according to the invention does not require the use of any conventional emulsifier which is normally needed to obtain a stable emulsion.

According to a further aspect of the invention, there is provided a method of manufacturing a composition according to the invention, wherein it comprises at least the steps of: - preparing the oily phase by mixing and heating under agitation of a first phase comprising at least one UV filter with the film forming agent and at least one emollient ;

preparing the aqueous phase by mixing, homogenising and heating a second phase comprising at least one surfactant, at least one emulsion stabilizing and viscosity controlling agent, at least one chelating agent and purified water;

- emulsifying the first phase in the second phase and homogenising;

cooling down to room temperature and adding tocopherol and ethanol;

homogenising and recovering a composition according to the invention.

Finally, the invention has for last object the use of a composition according to the invention, for protecting the skin against UV-A and/or UV-B radiation.

Other features and embodiments will be apparent from the following non-limitative description of the invention . The sun protection composition according to the invention is adapted to a topical application on the skin and therefore contains a physiologically acceptable medium, i.e. compatible with the skin. The compositions according to the invention comprise a physiologically acceptable medium or at least one pharmaceutically acceptable excipient, chosen according to the pharmaceutical or dermatological form desired.

The sun protection composition according to the invention can have for example the form of an oily solution, of a dispersion of the lotion type that is possibly two-phased, of an emulsion obtained by the dispersion of an oily phase in an aqueous phase (O/W) or inversely ( /0) , or a triple emulsion (W/O/W or 0/W/O) .

More preferably, the sun protection composition is an emulsion obtained by the dispersion of an oily phase in an aqueous phase (O/W) .

The sun protection composition according to the invention can be sprayed. As such, the final product can have the form of an aerosol, an atomizer, a mister, a gel-spray, a nebulizer, a spray or a vaporizer. The sun protection composition according to the invention is fluid, i.e. it is in liquid form which allows it to be sprayed. The composition is moreover in a form that is adapted to topical application on the skin.

More preferably, the sun protection composition according to the invention is a gel-spray.

The sun protection composition according to the invention comprises at least one UV filter.

By way of a non-restricted example of a UV filter that can be used, the following can be mentioned:

- derivatives of 1 , 3 , 5-triazine-2 , 4 , 6-triamine , such as Diethylamino Hydroxybenzoyl Hexyl Benzoate (Uvinul™ A+) , Ethyl Hexyl Triazone (Uvinul™ T 150), Bis-ethyl Hexyloxyphenol Methoxyphenyl Triazine (Tinosorb™ S) , Octocrylene (Eusolex® OCR) , Dimethicodiethylbenzalmalonate (Parsol® SLX) , Di-ethylhexyl-butamido Triazone (Uvasorb® HEB) ;

- esters of cinnamic acid, such as Isoamyl-p- methoxycinnamate or 2-ethylhexyl-p- methoxycinnamate (INCI: Ethyl Hexyl Methoxycinnamate ) , in particular marketed under the name Eusolex® 9020) ; - derivatives of Phenylbenzimidazole, such as Phenylbenzimidazole Sulfonic Acid, (Eusolex® 232) ;

- derivatives of Benzophenone, such as Benzophenone-3 (Tinosorb™ B3), Benzophenone-4

(Uvinul™ MS 40) or Benzophenone-5 ; and

- derivatives of p-aminobenzoic acid, such as the ethoxylated derivative PEG 25 - PABA (Uvinul™ P25) .

More preferably, the composition according to the invention comprises at least one UV filter chosen from among Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine (BEMT) (Tinosorb™ S) , Ethylhexyl Methoxycinnamate or Diethylamino Hydroxybenzoyl Hexyl Benzoate (Uvinul™ A+) .

Advantageously, the composition according to the invention comprises at least two UV filters.

More preferably, the composition according to the invention comprises at least two UV filters chosen from among Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine (BEMT) (Tinosorb™ S) , Ethylhexyl Methoxycinnamate and/or Diethylamino Hydroxybenzoyl Hexyl Benzoate (Uvinul™ A+) .

More advantageously, the composition according to the invention comprises at least three UV filters.

More preferably, the three UV filters are Bis- Ethylhexyloxyphenol Methoxyphenyl Triazine (BEMT) (Tinosorb™ S), Ethylhexyl Methoxycinnamate and Diethylamino Hydroxybenzoyl Hexyl Benzoate (Uvinul™ A+) .

According to an advantageous embodiment of the invention the composition comprises one or several UV filters such as hereinabove, at concentrations that allow for the obtaining of a high SPF (Sun Protection Factor) , i.e. of at least 25, preferably of at least 30. More preferably, the composition having a SPF of at least 25 (and presenting an UVA-PF of 1/3 of the SPF) comprises a mixture of UV filters:

Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine (BEMT) (Tinosorb™ S) ,

- Ethylhexyl Methoxycinnamate and

Diethylamino Hydroxybenzoyl Hexyl Benzoate (Uvinul™ A+) .

Even more preferably, the composition having a SPF of at least 25 comprises a mixture of the following UV filters:

- between 2.0% and 5.0% of Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine (BEMT) (Tinosorb™ S) ;

- between 7.0% and 10% of Ethylhexyl Methoxycinnamate; and

- between 3.5% and 4.5% of Diethylamino Hydroxybenzoyl Hexyl Benzoate (Uvinul™ A+) .

For example, a composition containing the following UV filters:

- 2.5% of Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine (BEMT) (Tinosorb™ S) ;

- 10% of Ethylhexyl Methoxycinnamate; and

- 4.0% of Diethylamino Hydroxybenzoyl Hexyl Benzoate (Uvinul™ A+)

has a calculated SPF of 31.7 and a calculated UVA- PF of 8.5.

In the same way, a composition containing the following UV filters:

- 5% of Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine (BEMT) (Tinosorb™ S) ; - 4.0% of Diethylamino Hydroxybenzoyl Hexyl Benzoate (Uvinul™ A+)

has a SPF of 32.6 and an UVA-PF of 11.4.

In the same way, a composition containing the following UV filters:

- 2% of Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine (BEMT) (Tinosorb™ S) ;

- 8% of Ethylhexyl Methoxycinnamate ; and

- 3.5% of Diethylamino Hydroxybenzoyl Hexyl Benzoate (Uvinul™ A+)

has a SPF of 25.7 and an UVA-PF of 8.9.

The composition according to the invention further comprises at least one emollient. The emollient makes it possible in particular to solubilise the UV filters and to prevent the recristallisation thereof.

By way of a non-restricted example of an emollient that can be used, the following can be mentioned:

benzoate esters such as Dipropylene Glycol Dibenzoate (Finsolv® PG-22) , Ethylhexyl Benzoate (Finsolv® EB) or C12-15 Alkyl Benzoate;

- Dicaprylyl Carbonate (Cetiol® CC) and

- Dibutyl Adipate.

More preferably, the emollient is chosen from among C12-15 Alkyl Benzoate or Dibutyl Adipate.

Advantageously, the composition according to the invention comprises at least two emollients.

More preferably, the two emollients are C12-15 Alkyl Benzoate and Dibutyl Adipate.

Surprisingly, the applicant was able to reveal that, in order to obtain a sprayable sun protection composition according to the invention which has the form of a stable oil in water (O/W) emulsion, the droplets of oil have to be stabilised by the association of at least one emulsion stabilizing and viscosity controlling agent, a chelating agent, a surfactant.

As such, the composition according to the invention necessarily comprises an emulsion stabilizing and viscosity controlling agent. An emulsion stabilizing and viscosity controlling agent is distinct from a conventional emulsifier as it is not HLB (Hydrophilic/Lipophilic Balance) dependent and provides hydrophobic interactions providing a (microgel ) network which captures/entraps the oil droplets whereas a conventional emulsifier is HLB dependent and strongly reduces the interfacial oil-water tension, sometimes providing a lamellar phase. An emulsion stabilizing and viscosity controlling agent is an agent creating a kind of network where droplets are fixed. An emulsion stabilizing and viscosity controlling agent encompassed in the invention has not the role of reducing the interfacial tension. Thus, the formulations of invention are devoid of conventional emulsifier, which are HLB dependent .

Preferably, the emulsion stabilizing agent is a polymer. More preferably, this polymer does not increase the viscosity. By way of a non-restricted example of emulsion stabilizing and viscosity controlling agent that can be used, the following can be mentioned:

- acrylate and acrylamide polymers such as Acrylates/ClO-30 Alkyl Acrylate Crosspolymer (Pemulen™ TR2 ) .

The composition according to the invention furthermore comprises a chelating agent. By way of a non-restricted example of a chelating agent that can be used, alpha-cyclodextrin (Cavamax™ W6 Food) or Trisodium Ethylenediamine Disuccinate (Natrlquest™ E30) can be mentioned. These two chelating agents are preferably used because they enable droplet stabilisation .

More preferably, the chelating agent is alpha- cyclodextrin (Cavamax™ W6 Food) . The composition according to the invention further comprises a surfactant which makes it possibleto favour an even distribution of the product when it is used.

By way of a non-restricted example of surfactant that can be used, Lauryl Glucoside (Plantacare™ 1200 UP) can be mentioned.

Surprisingly, the applicant was able to show that the absence of xanthan gum (Xantural™ 75) in the preparation of the composition according to the invention makes it possible to develop a product having an optimum viscosity to be sprayed for- example in a formulation as a gel-spray .

As such, the composition according to the invention does not contain xanthan gum such as for example Xantural™ 75.

Advantageously, the composition according to the invention does not contain any conventional emulsifying agent such as, for example, those chosen from among Lecithin, Cetyl Phosphate, , Montanov™ 68 (Cetearyl Alcohol and Cetearyl Glucoside), Polyglycerin-Emulsifiers .

Advantageously, the composition according to the invention further comprises one or several components, taken individually or as a mixture, such as: - film-forming agent, such as acetyl tributyl citrate, Antaron™ polymers such as the VP/Hexadecene copolymer (Antaron™ (Ganex) V-216 Polymer) , the VP/Eicosene copolymer (Antaron™ (Ganex) V-220/220F polymer and Triacontanyl PVP

(Antaron™ (Ganex) WP-660 polymer) ; waxes such as in particular Cera Alba, Cera candelilla or Cera carnauba; cellulose and derivatives thereof (acetates, nitrates, etc.); and chitosan and derivatives thereof;

- pH regulators such as Triethanolamine (Trolamine™ EP) and Sodium Hydroxide solution;

- skin-conditioning agents such as Dimethicone 5 CS;

- antioxidants such as dl-alpha-Tocopherol ;

- co-solvents such as ethanol; and

- purified water.

According to a preferred embodiment of the invention,, the sprayable sun protection composition according to the invention does not contain xanthan gum, but comprises at least:

one UV filter which is chosen from among Bis- Ethylhexyloxyphenol Methoxyphenyl Triazine (BEMT) (Tinosorb™ S), Ethylhexyl . Methoxycinnamate or Diethylamino Hydroxybenzoyl Hexyl Benzoate

(Uvinul™ A+) , taken individually or as a mixture; one emollient which is C12-15 Alkyl Benzoate and/or Dibutyl Adipate;

one emulsion stabilizing and viscosity controlling agent which is Acrylates/C10-30 Alkyl

Acrylate Crosspolymer (Pemulen™ TR2).; one chelating agent which is alpha-cyclodextrin (Cavamax™ W6 Food) ; and

one surfactant which is Lauryl Glucoside (Plantacare™ 1200 UP) .

More preferably, the composition further comprises:

Purified water;

Trisodium Ethylenediamine Disuccinate

(Natrlquest™ E30) ;

Triethanolamine (Trolamine™ EP) ;

- VP/Eicosene Copolymer (Antaron™ V-220 F) ;

Dimethicone;

dl-alpha-Tocopherol ; and

Ethanol.

Even more preferably, the composition according to the invention comprises the following constituents in the following proportions, expressed as a percentage in weight of the total weight of the composition:

- 40% to 70% purified water;

- 0.01% to 0.1% Acrylates/ClO-30 Alkyl Acrylate Crosspolymer (Pemulen™ TR2);

- 0.01% to 0.5% Trisodium Ethylenediamine Disuccinate (Natrlquest™ E30);

- 0.1% to 5.0% alpha-cyclodextrin (Cavamax™ W6 Food)

- 0.01% to 0.5% Triethanolamine (Trolamine™

EP)

- 0.5% to 5.0% C12-15 Alkyl Benzoate;

- 0.5% to 5.0% Dibutyl Adipate;

- 0.05% to 5.0% VP/Eicosene Copolymer (Antaron™ V-220 F)

- 0.5% to 5.0% Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine (BEMT) (Tinosorb™ S) ; - 2.0 to 20% Ethylhexyl Methoxycinnamate ;

- 1.0% to 8.0% Diethylamino Hydroxybenzoyl Hexyl Benzoate (Uvinul™ At) ;

- 0.05% to 6.0% Dimethicone 5 CS;

- 0.1% to 3.0% dl-alpha-Tocopherol;

- 2.0% to 20% Ethanol 96% EP;

- 0.005% to 2.0% Lauryl Glucoside (Plantacare™ 1200 UP)

Particularly advantageously, the composition according to the invention comprises the following constituents in the following proportions, expressed as a percentage in weight of the total weight of the composition:

- 55% to 65% purified water:

- 0.01% to 0.1% Acrylates/ClO-30 Alkyl Acrylate Crosspolymer (Pemulen™ TR2);

- 0.05% to 0.2% Trisodium Ethylenediamine Disuccinate (Natrlquest™ E30);

- 0.5% to 2.0% alpha-cyclodextrin (Cavamax™ W6 Food) ;

- 0.05 to 0.08% Triethanolamine (Trolamine™ EP) ;

- 1.5% to 3.0% C12-15 Alkyl Benzoate;

- 1.0% to 3.0% Dibutyl Adipate;

- 0.1% to 3.0% VP/Eicosene Copolymer (Antaron™ V-220 F) ;

- 2.0% to 5.0% Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine (BEMT) (Tinosorb™ S) ;

- 7.0% to 10% Ethylhexyl Methoxycinnamate;

- 3.5% to 4.5% Diethylamino Hydroxybenzoyl Hexyl Benzoate (Uvinul™ A+) ;

- 0.1% to 5.0% Dimethicone 5 CS;

- 0.1% to 2.0% dl-alpha-Tocopherol; - 6% to 13% Ethanol 96% EP; and

- 0.01% to 0.15% Lauryl Glucoside (Plantacare™ 1200 UP) .

The invention also relates to a method of manufacturing a composition according to the invention, wherein it comprises at least the steps of:

- preparing the oily phase by mixing and heating under agitation of a first phase comprising at least one UV filter with the film forming agent and at least one emollient;

preparing the aqueous phase by mixing, homogenising and heating a second phase comprising, at least one surfactant, at least one emulsion stabilizing and viscosity controlling agent, at least one chelating agent and purified water;

- emulsifying the first phase in the second phase and homogenising;

cooling down to room temperature and adding tocopherol and ethanol; and

- homogenising and recovering a composition according to the invention.

More preferably, the first phase further comprises VP/Eicosene Copolymer (Antaron™ V-220 F) and Dimethicone, the second phase further comprises Trisodium Ethylenediamine Disuccinate (Natrlquest™ E30), and the third phase further comprises dl-alpha-Tocopherol and ethanol .

Even more preferably, prior to the step of emulsifying of the first phase in the second phase and homogenising, triethanolamine is added to the second phase. Finally, the invention relates to the use of a composition according to the invention, for protecting the skin against UV-A and/or UV-B radiation.

More preferably, the compositions are particularly effective in protecting human skin against the harmful effects of UV-A and/or UV-B radiation which include but are not limited to photo-ageing, burns, sun allergies or photo-allergies, pigmentary disorders and the development of skin cancers.

As such, this invention also relates to a method for protecting human skin against the harmful effects of UV-A and/or UV-B radiation, by application of a composition according to the invention.

This invention shall now be illustrated by means of the following examples. In these examples, the quantities are expressed as a percentage by weight.

EXAMPLES

Example 1: sprayable sun protection compositions:

The applicant manufactured and analysed five different sun protection compositions numbered 26, 27, 63,

66 and 122.

Table 1 hereinbelow provides the qualitative and quantitative content of the compositions tested:

Table 1:

Compositions

26 27 63 66 122

Phases Constituents % % % % % Purified water

from 55.000% to 65.000%

(qsp)

Pemulen TR2

(Acrylates/ClO-30

from 0.010% to 0.150%

Alkyl Acrylate

Crosspolymer )

from from from

Xantural™ 75 0.100% 0.100% 0.100%

- - (Xanthan Gum) to to to

0.300% 0.300% 0.300%

A

Natrlquest™ E30

( Trisodium from 0.050% to 0.200% Ethylenediamine

Disuccinate )

Cavamax™ W6 Food

(alpha- from 0.500% to 2.000% cyclodextrin)

^■ Prolamine™ EP

from 0.050% to 1.000%

(Triethanolamine )

Plantacare™ 1200

UP from 0.010% to 0.150%

- - (Lauryl

Glucoside )

from from from

C12-15 Alkyl 1.500% 1.500% 1.500%

- - Benzoate to to to

3.500% 3.500% 3.500% from from from 1.000% 1.000% 1.000%

Dibutyl Adipate - - to to to 3.000% 3.000% 3.000%

Antaron™ V-220 F

from 0.100% to 3.000%

(VP/Eicosene

Copolymer)

B Tinosorb™ S

(Bis- from 2.000% to 5.000%

Ethylhexyloxyphen

ol Methoxyphenyl

Triazine (BEMT)

Ethylhexyl from 7.000% to 10.000% Methoxycinnamate

Uvinul™ A+

( Diethylamino from 3.500% to 5.000%

Hydroxybenzoyl

Hexyl Benzoate) from 0.100% to 5.000%

Dimethicone 5 CS dl-alpha- from 0.100% to 2.000%

Tocopherol#

c

from 6.000% to 13.000%

Ethanol 96% EP

Example 2: Method for manufacturing sun protection compositions according to example 1:

The compositions 26, 27, 63 and 122 were prepared according to the following steps:

1. weighing of the various constituents of phase B in a glass beaker;

2. melting of the various constituents of phase B under agitation using a magnetic stirrer hot plate; 3. weighing of the various constituents of phase A, except for Trolamine™ EP, in a glass beaker;

4. mixing and homogenising of the various constituents of phase A;

5. weighing of Trolamine™ EP in the phase A;

6. mixing and homogenising of phase A;

7. heating of phase A to 80°C;

8. emulsifying of phase B in phase A by homogenising;

9. cooling the gel to room temperature; and

10. adding phase C and homogenising of the whole.

Example 3: Pre-selection of the sun protection compositions according to the example 1 to be analysed:

Among the four compositions manufactured the compositions 27 and 66, which do not contain lipids, were not retained for the remainder of the tests. Indeed, the absence of lipids in these compositions causes the UV filters to re-crystallise.

Moreover, the excessive viscosity of the composition 66, which comprises both Plantacare™ 1200 UP and Xantural™ 75, does not allow it to be formulated in the form of a spray or a gel-spray.

As such, only the compositions 26 (used as reference composition with Xanthan gum) , 63 and 122 were evaluated both under the microscope and via a temperature test .

This example demonstrates that any composition does not fulfil the features to be sprayable according to invention. The addition of Xanthan gum, does not provide a sprayable composition. Indeed, the composition 26 with Xanthan gum is not sprayable.

Example 4: Galenic evaluation of the composition 26: The quality and the stability of the composition 26 were evaluated under the microscope and by a temperature test .

The results of the evaluation under the microscope of the composition 26 (Axioskop, Zeiss) are provided in table 2 hereinbelow:

Table 2:

Time Evaluation with

Evaluation on brightfield (weeks) polarizer

TO Homogeneous composition

Absence of crystals

(After manufacture) No presence of droplets

Homogeneous composition

T+4 weeks at room

Absence of crystals Droplets with a size of temperature (RT)

less than 5μπι Homogeneous composition

T+8 weeks at RT Absence of crystals Droplets with a size of less than 5pm

Homogeneous composition

T+8 weeks at +4°C Absence of crystals Droplets with a size of less than 5pm

Homogeneous composition

T+12 weeks at RT Absence of crystals Droplets with a size of less than lOpm

Homogeneous composition

T+12 weeks at +4°C Absence of crystals Droplets with a size of less than lOpm

Homogeneous composition

T+26 weeks at RT Absence of crystals Droplets with a size of less than 10pm

Homogeneous composition

T+26 weeks at +4°C Absence of crystals Droplets with a size of less than lOpm

The results of the temperature tests of the composition 26 are provided in table 3 hereinbelow. During the temperature tests, sensory and macroscopic parameters were verified, such as in particular the colour, the change in colour, the odour, the shininess, the superficial properties, the consistency, the oily and/or aqueous deposit, the granularity, formation of a protuberance .

Table 3:

Time Macroscopic and sensory properties of the (weeks) composition

TO Smooth, yellow, shiny composition with

(After manufacture) characteristic odour, having minimum fluidity T+2 weeks at room

temperature (RT) and

Identical to TO

60 °C alternating

( Stresstest )

T+4 weeks at +4°C Identical to TO

Increased fluidity or otherwise identical to

T+4 weeks at RT

TO

T+4 weeks at +30°C Identical to TO

T+4 weeks at Increased fluidity or otherwise identical to +40°C TO

T+8 weeks at

Identical to TO

+4°C

Increased fluidity or otherwise identical to

T+8 weeks at RT

TO

T+8 weeks at +30°C Identical to TO

T+8 weeks at Increased fluidity or otherwise identical to +40°C TO

T+12 weeks at

Identical to TO

+4°C

T+12 weeks at Increased fluidity or otherwise identical to RT TO

T+12 weeks at +30°C Identical to TO

T+12 weeks at Increased fluidity or otherwise identical to +40°C TO

T+26 weeks at +4°C Identical to TO

T+26 weeks at

Identical to TO

RT

T+26 weeks at +30°C Identical to TO

T+26 weeks at Increased fluidity or otherwise identical to +40°C TO

The results shown in tables 2 and 3 hereinabove, show that the composition 26 has qualities that allow it to be formulated as a gel-cream formulation. However, the results of the galenic evaluation provided in table 2 also show that the composition 26 does not have sufficient stability.

Also, in order to increase the stability, the applicant developed the composition 66, which comprises, in addition to the xanthan gum, Lauryl Glucoside.

However, as indicated hereinabove, the composition 66 obtained, which contains both Plantacare™ 1200 UP and Xantural™ 75, is too viscous, which does not allow it to be formulated in the form of a spray or a gel-spray.

Example 5: Galenic evaluation of the composition 63: Among the various compositions developed by the applicant, the composition 63, which is substantially identical to the composition 66 (not retained as it is too viscous) detailed hereinabove, drew the attention of the applicant. Indeed, it is following the omission of an ingredient during its preparation that the composition 63 was developed. As detailed in table 1 hereinabove, the composition 63 is distinguished from the composition 66 in that it does not contain xanthan gum (Xantural™ 75) .

As with the composition 26, the quality and the stability of the composition 63 were evaluated under the microscope and by a temperature test.

The results of this evaluation under the microscope

(Axioskop, Zeiss) are provided in table 4 hereinbelow:

Table 4 :

Time Evaluation with Evaluation on

(weeks) polarizer brightfield

Homogeneous composition,

TO

Absence of crystals structure of the gel

(After manufacture)

type No presence of droplets

T+4 weeks at room

Identical to TO Identical to TO temperature (RT)

T+8 weeks at RT Identical to TO Identical to TO

T+8 weeks at +4°C Identical to TO Identical to TO

T+12 weeks at

Identical to TO Identical to TO RT

T+12 weeks at +4°C Identical teo- TO Identical to TO

T+26 weeks at

Identical to TO Identical to TO RT

T+26 weeks at +4°C Identical to TO Identical to TO

The results of the temperature tests of the composition 63 are provided in table 5 hereinbelow. During the temperature tests, sensory and macroscopic parameters are verified, such as in particular the colour, the change in colour, the odour, the shininess, the superficial properties, the consistency, the oily and/or aqueous deposit, the granularity, formation of a protuberance .

Table 5:

Time Macroscopic and sensory properties of the (weeks) composition

TO Smooth, yellow, shiny composition, with an

(After production) odour of ethanol, having good fluidity

T+2 weeks at room

temperature (RT) and

Identical to TO

60 °C alternating

(stress test) T+4 weeks at

Identical to TO

+4°C

T+4 weeks at

Identical to TO

RT

T+4 weeks at

Identical to TO

+30°C

T+4 weeks at Start of heterogeneity, separation of the +40°C oily phase

T+8 weeks at

Identical to TO

+4°C

T+8 weeks at RT Identical to TO

T+8 weeks at

Identical to TO

+30°C

T+8 weeks at Identical to TO (no separation of the oily +40°C phase or heterogeneity visible)

T+12 weeks at

Identical to TO

+4°C

T+12 weeks at

Identical to TO

RT

T+12 weeks at

Identical to TO

+30°C

Slight separation of the oily phase on the

T+12 weeks at +40°C

surface

T+26 weeks at

Identical to TO

+4°C

T+26 weeks at RT Identical to TO

T+26 weeks at +30°C Identical to TO

Slight separation of the oily phase on the

T+26 weeks at +40°C

surface

The results shown in tables 4 and 5 hereinabove, show that the composition 63 has both good microscopic stability over time (absence of crystals and droplets even after 26 weeks) and good resistance at high temperatures. This composition 63 also has physical- chemical properties that make it particularly adapted for a formulation as a gel-spray.

Surprisingly, the applicant was able to reveal that the fortuitous absence of xanthan gum in the preparation of the composition 63, made it possible to develop a composition that has a viscosity that is acceptable for a formulation as a gel-spray.

The composition 63 obtained is stable and does not require any conventional emulsifying agent.

When the composition 63 is compared with the composition 26 which does not contain Lauryl Glucoside (Plantacare™ 1200 UP), it can be deduced that it is possible to substitute xanthan gum (Xantural™ 75) with Lauryl Glucoside (Plantacare™ 1200 UP) in order to obtain a composition as a gel-spray.

The applicant was therefore able to develop a composition formulated as a gel-spray that has a high protection factor (PF) or "SPF" (for Sun Protection Factor), i.e. greater than or equal to 25.

Example 6: Galenic evaluation of the composition

122:

Starting with the composition 63, the applicant also optimised the quantity of ingredients in order to develop a composition formulated as a gel-spray that has a protection factor (PF) of at least 30.

Among the various compositions developed by the applicant, the composition 122, which is substantially identical to the composition 63 detailed hereinabove, met the highest requirements of the applicant. As detailed in table 1 hereinabove, the composition 122 is distinguished from the composition 63 m that it comprises different concentrations of triethanolamine, of UV filters Tinosorb™ S and Uvinul™ A+ .

As for the compositions 26 and 63, the quality and the stability of the composition 122 were evaluated under the microscope and by a temperature test.

The results of this evaluation under the microscope (Axioskop, Zeiss) are provided in table 6 hereinbelow:

Table 6:

The results of the temperature tests of the composition 122 are provided in table 7 hereinbelow. During the temperature tests, sensory and macroscopic parameters are verified, such as in particular the colour, the change in colour, the odour, the shininess, the superficial properties, the consistency, the oily and/or aqueous deposit, the granularity, formation of a protuberance .

Table 7:

Time Macroscopic and sensory properties of the (weeks ) composition

Smooth, yellow, shiny composition with an

TO

odour of ethanol, having good fluidity and

(After production)

air inclusions

T+4 weeks at

Identical to TO

+4°C

T+4 weeks at room

Identical to TO

temperature (RT)

T+4 weeks at

Identical to TO

+30°C

T+4 weeks at

Identical to TO

+40°C

T+8 weeks at

Identical to TO

+4°C

T+8 weeks at

Identical to TO, but difficult to spray RT

T+8 weeks at Slight separation of the oily phase on the +30°C surface and difficult to spray

T+8 weeks at Slight separation of the oily phase on the +40°C surface and difficult to spray

T+12 weeks at

Identical to TO

+4°C

T+12 _. weeks at

Identical to TO, but difficult to spray RT

T+12 weeks at Slight separation of the oily phase on the +30°C surface and difficult to spray

T+12 weeks at Slight separation of the oily phase on the +40°C surface and difficult to spray

T+26 weeks at

Identical to TO

+4°C

T+26 weeks at Identical to TO, but difficult to spray RT

T+26 weeks at Slight separation of the oily phase on the +30°C surface and difficult to spray

T+26 weeks at Slight separation of the oily phase on the +40°C surface and difficult to spray

The results shown in tables 6 and 7 hereinabove, show that the composition 122 has, as composition 63, both good microscopic stability over time (absence of crystals and droplets even after 26 weeks) and good resistance to high temperatures. This composition 122 also has physical-chemical properties whichmake it particularly adapted for a formulation as a gel-spray.

The applicant was as such able to develop a composition formulated as a gel-spray having a high SPF) , i.e. of at least 30.