Cosmetic composition containing retinol stabilized by porous polymer beads and nanoemulsion

A method of stabilizing retinol, comprising the steps of:

• (A) (a1) adding mesoporous polymer beads having a particle size of 50 nm to 500 nm to ethanol to prepare a first mixture, stirring the first mixture, mixing an antioxidant (butylated hydroxytoluene) with the first mixture to prepare a second mixture, and then dissolving the second mixture, (a2) adding retinol (vitamin A) to the second mixture to prepare a third mixture, completely dissolving the third mixture, mixing the third mixture with distilled water to prepare a mixed solution, and then stirring the mixed solution, (a3) filtering and drying the mixed solution under reduced pressure to prepare a retinol-adsorbed polymer nanocapsule;
• (B) (b1) heating glycerin, and then mixing the heated glycerin with tocopheryl acetate, butylated hydroxyanisole and a mung bean MCT extract to prepare a fourth mixture while dissolving the fourth mixture, (b2) adding cholesterol to the fourth mixture to prepare a fifth mixture, dissolving the fifth mixture, and then adding the retinal-adsorbed polymer nanocapsule to the fifth mixture to prepare a sixth mixture, (b3) adding hydrogenated lysolecithin to the sixth mixture to prepare a seventh mixture, dissolving the seventh mixture, adding purified water to the seventh mixture to prepare a mixed solution, and then stirring the mixed solution to prepare a nano-emulsion composition;
• and
• (C) forming the nano-emulsion composition into a nano-emulsion having a size of 50˜200 nm using a high-pressure homogenizer (microfluidizer) to stabilize retinal.