ENHANCED PHOTOPROTECTIVE COMPOSITIONS
A photoprotective composition including a synergistic triplet combination of zinc oxide, styrene/acrylate copolymer and glycol. As a result of the inclusion of the synergistic triplet combination in a photoprotective composition, an unexpected boost in SPF is observed, as compared to a composition without the synergistic triplet combination.
1 . A photoprotective composition, comprising:
a synergistic triplet combination, comprising,
zinc oxide,
styrene/acrylate copolymer; and
glycol,
wherein said synergistic triplet combination provides a boost in a SPF in said photoprotective composition compared to a composition without said triplet combination.
2 . The composition of claim 1 , wherein said zinc oxide is coated, uncoated, in a dispersion, or any combinations thereof.
3 . The composition of claim 1 , wherein said zinc oxide is present in an amount of about 1 wt. % to about 15 wt. %, based on a total weight of the composition.
4 . The composition of claim 1 , wherein said zinc oxide is present in an amount of about 1 wt. % to about 5 wt. %, based on a total weight of the composition.
5 . The composition of claim 1 , wherein said zinc oxide is present in an amount of about 2 wt. % to about 3 wt. %, based on a total weight of the composition.
6 . The composition of claim 1 , wherein said styrene/acrylate copolymer is a styrene/acrylate copolymer sphere.
7 . The composition of claim 1 , wherein said styrene/acrylate copolymer is present in an amount about 1 wt. % to about 10 wt. %, based on a total weight of said composition.
8 . The composition of claim 1 , wherein said styrene/acrylate copolymer is present in an amount about 2 wt. % to about 8 wt. %, based on a total weight of said composition.
9 . The composition of claim 1 , wherein said styrene/acrylate copolymer is present in an amount about 4 wt. % to about 6 wt. %, based on a total weight of said composition.
10 . The photoprotective composition of claim 1 , wherein said glycol is selected from the group consisting of pentylene glycol (1,2-pentanediol), neopentyl glycol (neopentanediol), caprylyl glycol (1,2-octanediol), ethoxydiglycol, butylene glycol monopropionate, diethylene glycol monobutyl ether, PEG-7 methyl ether, octacosanyl glycol, arachidyl glycol, benzyl glycol, cetyl glycol (1,2-hexanediol), C 14-18 glycol, C 15-18 glycol, lauryl glycol (1,2-dodecanediol), butoxydiglycol, 1,10-decanediol, ethyl hexanediol, and any combinations thereof.
11 . The photoprotective composition of claim 1 , wherein said glycol is caprylyl glycol.
12 . The composition of claim 1 , wherein said glycol is present in an amount about 0.1 wt. % to about 10 wt. % based on a total weight of the composition.
13 . The composition of claim 1 , wherein said glycol is present in an amount about 0.25 wt. % to about 5 wt. % based on a total weight of the composition.
14 . The composition of claim 1 , wherein said glycol is present in an amount about 0.5 wt. % to about 1.25 wt. % based on a total weight of the composition.
15 . The composition of claim 1 , further comprising one or more sunscreen agents selected from the group consisting of p-aminobenzoic acid, p-aminobenzoic acid salts, p-aminobenzoic acid derivatives, anthranilates, salicylates, glyceryl ester, dipropyleneglycol esters, cinnamic acid derivatives, dihydroxycinnamic acid derivatives, camphor, camphor derivatives, trihydroxycinnamic acid derivatives, hydrocarbons, dibenzalacetone, benzalacetophenone, naptholsulfonates, dihydroxy-naphthoic acid, dihydroxy-naphthoic acid salts; o-hydroxydiphenyldisulfonates, p-hydroxydiphenyldisulfonates, coumarin derivatives, diazoles, quinine salts, quinoline derivatives, hydroxy-substituted benzophenones, methoxy-substituted benzophenones, uric acids, vilouric acids, tannic acid, tannic acid derivatives, hydroquinone, benzophenones, avobenzone, 4-isopropyldibenzoylmethane, butylmethoxydibenzoylmethane, octocrylene, 4-isopropyl-dibenzoylmethane, metal oxides, titanium dioxide, and any combinations thereof.
16 . The photoprotective composition of claim 15 , wherein said one or more sunscreen agents are present in an amount between about 1 wt. % to about 40 wt. %, based on the total weight of the composition.
17 . A photoprotective composition, comprising:
a synergistic triplet combination, comprising,
zinc oxide,
styrene/acrylate copolymer; and
diethylhexyl 2,6 naphthalate,
wherein said synergistic triplet combination provides a boost in a SPF in said photoprotective composition compared to a composition without said triplet combination.
18 . The composition of claim 17 , wherein said zinc oxide is coated, uncoated, in a dispersion, or any combinations thereof.
19 . The composition of claim 17 , wherein said zinc oxide is present in an amount of about 1 wt. % to about 5 wt. %, based on a total weight of the composition.
20 . The composition of claim 17 , wherein said styrene/acrylate copolymer is a styrene/acrylate copolymer sphere.
21 . The composition of claim 17 , wherein said styrene/acrylate copolymer is present in an amount about 2 wt. % to about 8 wt. %, based on a total weight of said composition.
22 . The composition of claim 17 , wherein said diethylhexyl 2,6 naphthalate is present in an amount about 0.25 wt. % to about 5 wt. %, based on a total weight of the composition.
23 . The composition of claim 17 , further comprising one or more sunscreen agents selected from the group consisting of p-aminobenzoic acid, p-aminobenzoic acid salts, p-aminobenzoic acid derivatives, anthranilates, salicylates, glyceryl ester, dipropyleneglycol esters, cinnamic acid derivatives, dihydroxycinnamic acid derivatives, camphor, camphor derivatives, trihydroxycinnamic acid derivatives, hydrocarbons, dibenzalacetone, benzalacetophenone, naptholsulfonates, dihydroxy-naphthoic acid, dihydroxy-naphthoic acid salts; o-hydroxydiphenyldisulfonates, p-hydroxydiphenyldisulfonates, coumarin derivatives, diazoles, quinine salts, quinoline derivatives, hydroxy-substituted benzophenones, methoxy-substituted benzophenones, uric acids, vilouric acids, tannic acid, tannic acid derivatives, hydroquinone, benzophenones, avobenzone, 4-isopropyldibenzoylmethane, butylmethoxydibenzoylmethane, octocrylene, 4-isopropyl-dibenzoylmethane, metal oxides, titanium dioxide, and any combinations thereof.
24 . The photoprotective composition of claim 23 , wherein said one or more sunscreen agents are present in an amount between about 1 wt. % to about 40 wt. %, based on the total weight of the composition.