Moisturizing and anti-aging essence
An anti-aging and essence technology, applied in cosmetics, skin care preparations, medical preparations containing active ingredients, etc., can solve problems such as difficult to achieve anti-aging effects, exaggerated claims of efficacy, and accelerated skin aging, etc., to achieve obvious anti-aging effects. Oxidative activity, accelerated production, and cell renewal effects
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[0039] The preparation method of above-mentioned embodiment 1~5 moisturizing anti-aging essence comprises the following steps:
[0040] (1) Accurately weigh EDTA-2 sodium, glycerin, propylene glycol, betaine, carbomer, sodium hyaluronate, dextran, hops extract, rape pollen papain enzymatic hydrolyzate, trehalose, live yeast cell derivatives Add the mixture and deionized water into a stirring pot and mix and stir for 30 minutes at a speed of 700 r / min at room temperature to disperse evenly to obtain phase A;
[0041] (2) Accurately weigh gallic acid, bis-PEG / PPG-16 / 16 PEG / PPG-16 / 16 dimethicone, caprylic / capric triglyceride, hydrogenated polyisobutylene, cyclopentamer Methyl siloxane, tocopheryl acetate, and essence are mixed and stirred evenly to obtain phase B;
[0042] (3) Add phase B to phase A, emulsify and homogenize for 2 minutes, and obtain phase C;
[0043] (4) Add triethanolamine, ethylhexylglycerin, and phenoxyethanol to phase C in turn while stirring, stir evenly, ...
Embodiment 6
[0055] Verification of free radical scavenging efficacy
[0056] The preparation concentration is 1×10 -2mol / L DPPH·dehydrated ethanol solution. The products prepared in Examples 1-5 and the products prepared in Comparative Examples 1-5 were prepared with 80% ethanol to prepare sample solutions to be tested with concentrations of 0.01, 0.10, 0.15, 0.20, and 0.25, respectively. Take 5mL sample solution and DPPH solution respectively, and mix well, place in the dark for 30min, adjust to zero with 80% ethanol, measure the absorbance Ai at 517BITI place; the same method, get 5mL80% ethanol solvent and sample solution and mix each other evenly, avoid Measure the absorbance Aj after standing in the light for 30min; add 5mL DPPH·solution to mix with 5mL80% ethanol solvent, place in the dark for 30min, measure the absorbance Ac. Finally, calculate the free radical scavenging rate according to the following formula: IP%=[1-(Ai-Aj) / Ac]×100, where Ai is the absorbance value after the s...
Embodiment 7
[0061] Human Efficacy Evaluation
[0062] The products prepared in Examples 1 to 5 and the products prepared in Comparative Examples 1 to 5 were tested for effect. Test objects: 30 women (25-50 years old) in each experimental group; continuous use for 4 weeks; test items: skin elasticity effect, moisturizing effect, anti-wrinkle effect. The trial results are shown in Table 3 below:
[0063] table 3
[0064]
[0065] As can be seen from Table 3, the number of people whose skin elasticity, moisture retention and anti-wrinkle effects are improved by the products prepared in Examples 1 to 5 is significantly more than that of the comparative examples, indicating that the hop extract, rape pollen papain enzymatic hydrolyzate, gallnut The reasonable combination of gallic acid and live yeast cell derivatives can maintain skin moisture, improve skin elasticity, and effectively play an anti-aging role.
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