Compositions containing a cellulose derived capsule with a sunscreen active agent
A sunscreen composition comprised of one or more sunscreen active agents encapsulated in a cellulose derived capsule wherein the composition can contain one or more additional agents. A sunscreen composition can be mixed with a body wash, an after shower body lotion, a shampoo, a conditioner, a soap, a gel, a hand sanitizer, a cream, a spray, a mouse, a lotion, an ointment, a make-up product, a lip balm, a hair spray product, an arachnid/insect repellent or a medicinal product.
1. A sunscreen lotion composition comprising:
about 0.01% to about 7% by total weight of the composition of a first flexible cellulose derived capsule, the first flexible cellulose derived capsule comprising a silicone oil,
about 0.01% to about 7% by total weight of the composition of a second flexible cellulose derived capsule, the second flexible cellulose derived capsule comprising a shea oil,
about 5% to about 17% by total weight of the composition of a third flexible cellulose derived capsule, the third flexible cellulose derived capsule comprising about 50% to about 80% of a broad spectrum UVA/UVB sunscreen active agent, about 20% to about 50% of a UVA sunscreen active agent and about 0.25% to about 5% by total weight of the composition of a photostabilizing agent,
about 2% to about 14% by total weight of the composition of a fourth flexible cellulose derived capsule, the fourth flexible cellulose derived capsule comprising a UVB sunscreen active agent,
about 0.25% to about 10% by total weight of the composition of one or more emollients and about 0.5% to about 12% by total weight of the composition of one or more thickening agents,
wherein the first, second, third and fourth flexible cellulose derived capsules comprise a flexible shell consisting of ethyl cellulose, methyl cellulose, ethylmethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxyethylmethyl cellulose, hydroxypropylmethyl cellulose, ethyl hydroxyethyl cellulose, carboxymethyl cellulose, or any salt therefrom, or any derivative of ethyl cellulose, methyl cellulose, ethylmethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxyethylmethyl cellulose, hydroxypropylmethyl cellulose, ethyl hydroxyethyl cellulose or carboxymethyl cellulose; and
wherein the first, second, third and fourth flexible cellulose derived capsules have a mean diameter of about 200 nm to about 700 nm.
2. The sunscreen lotion composition according to claim 1 , wherein the amount of the first flexible cellulose derived capsule is about 0.025% to about 5% by total weight of the composition.
3. The sunscreen lotion composition according to claim 1 , wherein the amount of the second flexible cellulose derived capsule is about 0.025% to about 5% by total weight of the composition.
4. The sunscreen lotion composition according to claim 1 , wherein the amount of the third flexible cellulose derived capsule is about 7% to about 15% by total weight of the composition.
5. The sunscreen lotion composition according to claim 1 , wherein the amount of the fourth flexible cellulose derived capsule is about 4% to about 12% by total weight of the composition.
6. The sunscreen lotion composition according to claim 1 , wherein the broad spectrum UVA/UVB sunscreen active agent is an octocrylene.
7. The sunscreen lotion composition according to claim 1 , wherein the UVA sunscreen active agent is a dibenzoylmethane.
8. The sunscreen lotion composition according to claim 7 , wherein the dibenzoylmethane includes avobenzone.
9. The sunscreen lotion composition according to claim 1 , wherein the UVA sunscreen active agent is a cinnamate derivative.
10. The sunscreen lotion composition according to claim 9 , wherein the cinnamate derivative includes octinoxate.
11. The sunscreen lotion composition according to claim 1 , wherein the photostabilizing agent includes trimethoxy benzylidene pentanedione.
12. The sunscreen lotion composition according to claim 1 , wherein the third flexible cellulose capsule comprises about 55% to about 75% of a broad spectrum UVA/UVB sunscreen active agent, about 25% to about 45% of a UVA sunscreen active agent and about 0.5% to about 3.5% by total weight of the composition of a photostabilizing agent.
13. The sunscreen lotion composition according to claim 1 , wherein the one or more emollients comprise caprylic capric triglyceride.
14. The sunscreen lotion composition according to claim 1 , wherein the thickening agents comprise one or more silicone elastomer thickening agents and one or more sodium acrylate-sodium acryloyidimethyl taurate copolymer-based thickening agents.
15. The sunscreen lotion composition according to claim 14 , wherein the one or more silicone elastomer thickening agents include a dimethicone-vinyldimethyl trimethylsiloxysilicate-dimethicone crosspolymer.
16. The sunscreen lotion composition according to claim 14 , wherein the one or more sodium acrylate-sodium acryloyldimethyl taurate copolymer-based thickening agents include an acrylate-sodium acryloyidimethyl taurate copolymer-based thickening agent comprising isohexadecane and polysorbate 80.
17. The sunscreen lotion composition according to claim 1 , further comprising a film former.
18. The sunscreen lotion composition according to claim 17 , wherein the film former is in an amount of about 1% to about 6% by total weight of the composition.
19. The sunscreen lotion composition according to claim 17 , wherein the film former includes an acrylate copolymer.
20. The sunscreen lotion composition according to claim 1 , wherein the SPF value is at least 35.