This invention discloses a whitening and
freckle-removing nano-cream and its preparation method using
supergravity technology. The whitening and
freckle-removing nano-cream comprises the following raw materials in parts by weight: 2-5 parts of water-in-oil emulsifier, 2-5 parts of oil-in-water emulsifier, 3-5 parts of liquid oil, 1-3 parts of
solid oil, 1-3 parts of
tocopheryl acetate, 0.5-2 parts of
laurocapram, 0.1-0.25 parts of
propylparaben, 10-30 parts of glycerin, 0.2-0.3 parts of
methylparaben, 0.05-0.1 parts of
sodium lauryl
sulfate, 0.5-1 parts of
antioxidant, 1.8-4 parts of whitening and
freckle-removing active ingredients, and deionized water added to a total of 100 parts. The present invention also discloses a method for preparing the whitening and freckle-removing nano-cream. The whitening and freckle-removing nano-cream of the present invention has a particle size between 70-130nm. Under the conditions of storage at
room temperature, 40℃ and 4℃ for ≥90 days, the appearance, particle size and content of whitening and freckle-removing active ingredients do not change significantly.