Novel photoprotective system

Abstract

The present invention concerns a topical, cosmetic or pharmaceutical preparation containing a combination of 3 or 4 solar filters comprising: one or two UVA filters to obtain a critical wavelength >370 nm, chosen from among: i. 5,6,5,6-tetraphenyl-3,3′-(1,4-phenylene)-bis[1,2,4]triazine, ii. 1,1′-(1,4-piperazinediyl)bis[1-[2-[4-(diethylamino)-2-hydroxybenzoyl]phenyl]-methanone iii. Butyl Methoxydibenzoylmethane (BMDBM), in a quantity less than 2 % by weight with regard to the total weight of said composition, iv. Hexyl 2-[4-(diethylamino)-2-hydroxybenzoyl]benzoate, 2,4-Bis[4-(2-ethylhexyloxy)-2-hydroxyphenyl]-6-(4-methoxyphenyl)-1,3,5-triazine=(BEMT), one or two filters chosen from among UVB filters, except octocrylene, PABA and ethylhexyl methoxycinnamate, said composition also containing a pharmaceutically or cosmetically acceptable excipient.

1 . A topical, cosmetic or pharmaceutical composition comprising one or more pharmaceutically or cosmetically acceptable excipients and a combination of solar filters only consisting of 3 or 4 solar filters comprising:
 one or two solar UVA filters to obtain a critical wavelength>370 nm, chosen from among:   i. 5,6,5,6-tetraphenyl-3,3′-(1,4-phenylene)-bis[1,2,4]triazine,   ii. 1,1′-(1,4-piperazinediyl)bis[1-, [2- [4-(diethylamino)-2-hydroxybenzoyl]phenyl]-methanone   iii. Butyl Methoxydibenzoylmethane (BMDBM), in a quantity less than 2% by weight with regard to the total weight of said composition, with the proviso that 1,1′-(1,4-piperazinediyl)bis[1-[2-[4-(diethylamino)-2-hydroxybenzoyl]phenyl]-methanone is necessarily present,   2,4-Bis[4-(2-ethylhexyloxy)-2-hydroxyphenyl]-6-(4-methoxyphenyl)-1,3,5-triazine (BEMT), and   one or two solar UVB filters, chosen from among the following compounds:   diethylhexyl butamido triazone,   ethylhexyl triazone,   tris-biphenyl triazine, in a quantity between 3% and 7% by weight with regard to the total weight of the composition   ethylhexyl salicylate,   phenylbenzimidazole sulfonic acid, and   TiO 2 ,   
       with the proviso that the solar filters do not include octocrylene, para-aminobenzoic acid (PABA) and ethylhexyl methoxycinnamate. 
     
     
         2 . The composition according to  claim 1 , wherein the quantity of all the compounds of said combination of solar filters is less than 20% by weight with regard to the total weight of the topical composition. 
     
     
         3 . (canceled) 
     
     
         4 . (canceled) 
     
     
         5 . The composition according to  claim 1 , wherein said one or two UVA solar filters are two solar UVA filters consisting of 1,1′-(1,4-piperazinediyl)bis[1-[2-[4-(diethylamino)-2-hydroxybenzoyl]phenyl]-methanone combined with BMDBM. 
     
     
         6 . The composition according to  claim 1 , wherein the 5,6,5,6-tetraphenyl-3,3′-(1,4-phenylene)-bis[1,2,4]triazine content is between 1% and 5% by weight with regard to the total weight of the composition. 
     
     
         7 . The composition according to  claim 1 , wherein the 1,1′-(1,4-piperazinediyl)bis[1-[2-[4-(diethylamino)-2-hydroxybenzoyl]phenyl]-methanone content is between 1% and 5% by weight with regard to the total weight of the composition. 
     
     
         8 . (canceled) 
     
     
         9 . The composition according to  claim 1 , wherein the BEMT content is between 1% and 4% by weight with regard to the total weight of the composition. 
     
     
         10 . The composition according to  claim 1 , wherein the combination of 3 or 4 solar filters comprises one or two solar UVB filters with the proviso that the solar filters do not include octocrylene, PABA and its derivatives, the cinnamate chemical family including ethylhexyl methoxycinnamate, homosalate, the benzophenone chemical family and the benzylidene camphor chemical family. 
     
     
         11 . (canceled) 
     
     
         12 . (canceled) 
     
     
         13 . The composition according to  claim 1 , wherein the diethylhexyl butamido triazone content is between 1% and 5% by weight with regard to the total weight of the composition. 
     
     
         14 . The composition according to  claim 1 , wherein the ethylhexyl triazone content is between 1% and 5% by weight with regard to the total weight of the composition. 
     
     
         15 . The composition according to  claim 1 , wherein the TiO 2  content is between 1% and 10% by weight with regard to the total weight of the composition. 
     
     
         16 . The composition according to  claim 1 , wherein it also comprises the broad spectrum filter methylene bis-benzotriazolyl tetramethylbutyl-phenol (MBBT). 
     
     
         17 - 20 . (canceled) 
     
     
         21 . The composition according to  claim 1 , wherein the quantity of all the compounds of said combination of solar filters is less than 16% by weight with regard to the total weight of the topical composition. 
     
     
         22 . The composition according to  claim 1 , wherein the quantity of all the compounds of said combination of solar filters is less than 14% by weight with regard to the total weight of the topical composition. 
     
     
         23 . The composition according to  claim 1 , wherein the combination of solar filters consists of 1,1′-(1,4-piperazinediyl)bis[1-[2-[4-(diethylamino)-2-hydroxybenzoyl]phenyl]-methanone, BEMT and tris-biphenyl triazine. 
     
     
         24 . The composition according to  claim 1 , wherein the combination of solar filters consists of 1,1′-(1,4-piperazinediyl)bis[1-[2-[4-(diethylamino)-2-hydroxybenzoyl]phenyl]-methanone, BEMT, tris-biphenyltriazine and ethylhexyl salicylate. 
     
     
         25 . The composition according to  claim 1 , wherein it contains 3 solar filters in all. 
     
     
         26 . The composition according to  claim 1 , wherein it contains 4 solar filters in all. 
     
     
         27 . A method for photoprotecting skin and/or hair, said method comprising:
 applying on the skin and/or hair the composition according to  claim 1 .