Compound delivery systems
A composition comprising (a) from 0.005% to 0.5% by weight of a cooling compound; (b) from 0.1% to 10% by weight of an emulsifiable substance; (c) from 0.15% to 15% by weight of a surfactant; (d) optionally up to 5% by weight, preferably from 0.05% to 5% by weight of a cosurfactant.
1. An oil in water microemulsion comprising from 0.45% to 30% by weight of a composition comprising:
a) from 0.005% to 0.5% by weight of a cooling compound having formula (I);
wherein R 1 is 2-methoxyphenyl and R 2 is 3-nitrophenyl;
b) from 0.1% to 10% by weight of an emulsifiable substance comprising a medium chain triglyceride;
c) from 0.15% to 15% by weight of a surfactant selected from the group consisting of polyethylene glycol oleyl ethers, lecithins, polyglycerol esters, polyoxyethylene sorbates, polyoxyethylene esters of fatty acids, polyethylene glycols, propylene glycols and mixtures thereof;
d) optionally up to 5% by weight of a cosurfactant.
2. The microemulsion of claim 1 in the form of a beverage, water ice, toothpaste or mouthwash.
3. The microemulsion of claim 1 wherein the cosurfactant is glycerol, erythritol or a short chain alcohol.