Cosmetic whitening emulsion and preparation method thereof

Abstract

The invention relates to the field of cosmetics, and in particular to a cosmetic whitening emulsion and a preparation method thereof. The cosmetic whitening emulsion consists of the following components in percentage by mass: 0.0015-0.2% of a Licorice root extract, 0.1-10% of nicotinamide, 0.1-5% of an extract of peony root and bark, 0.1-10% of an extract of rhizome of roof iris, and 60-80% of substrate ingredients which are common in other cosmetic emulsions. According to the cosmetic whitening emulsion provided by the invention, a plurality of natural plant extracts and natural flower extracts, which serve as major active ingredients, can develop a synergistic effect, so as to inhibit melanogenesis and to scavenge free radicals; therefore, an effect of whitening skin can be achieved.

Description

technical field

[0001] The invention relates to the field of cosmetics, in particular to a cosmetic whitening emulsion and a preparation method thereof. Background technique

[0002] The basal layer cells of the human epidermis contain 4% to 5% pigment cells. The color of human skin does not depend on the number of melanocytes, but on the number, size, distribution and degree of melanization of melanosomes. Tyrosinase is the first rate-limiting enzyme and key enzyme in the synthesis of melanin. Therefore, most whitening agents contain tyrosinase inhibitors, which can achieve whitening effects by affecting the formation and transfer of melanosomes.

[0003] Tyrosinase is a copper-containing aerobic enzyme, and in the process of converting tyrosine into dopa, aerobic free radicals must participate. In other words, oxygen free radicals are both initiators and reactants, and the process of catalyzing oxidation by tyrosinase is actually the process of removing free radicals in...

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