Anti-aging composition and skin care product comprising same
A composition and anti-aging technology, which is applied in the field of anti-aging compositions and skin care products, can solve problems such as easy discoloration, single function, and poor stability of antioxidants, and achieve high cost-effective and good anti-aging effects
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Embodiment 8
[0035] Antioxidant effect test
[0036] According to the theory of free radical damage, the production of free radicals is the main cause of skin aging. Therefore, whether it has the ability to scavenge free radicals is one of the important indicators for evaluating anti-aging skin care products.
[0037] Diphenylpicryl radical (DPPH) is a stable nitrogen-centered free radical. If the test substance can remove it, it means that the test substance has the ability to reduce hydroxyl free radicals, alkyl free radicals or peroxyl free radicals. The role of free radicals. DPPH has a strong absorption at 520nm, and its ethanol aqueous solution is dark purple. After adding the test substance, use a spectrophotometer at 520nm to measure the decrease in absorbance caused by its removal of DPPH. According to the change in absorbance, the ability of the test substance to remove DPPH can be obtained . Other experimental principles for removing superoxide anions and hydroxyl radicals ar...
Embodiment 9
[0047] Verification of skin elasticity enhancement effect
[0048] The experimental population was divided into 7 groups, 20 people in each group. The subjects were grouped objectively, and they were not aware of the product ingredients, and the influence of psychological factors on the overall evaluation of the product was excluded. Each group of people used the skin care products of Examples 1-7 respectively. Before applying the sample, the subject washed his face with the same mild cleanser, and selected a symmetrical position about 5×5cm on the left and right sides of the subject’s face 2 The size of the area is used as the experimental area, and about 0.5g of the corresponding skin care products used by each group is applied, and the frequency of use is once in the morning and once in the evening, and it is used continuously every day.
[0049] Before using the skin care product of embodiment 1~7, detect each test site initial elasticity m with the elasticity probe of Ca...
Embodiment 10
[0055] The test is divided into a control group and an experimental group. Experimental groups 1 to 7 are the skin care products prepared in Examples 1 to 7 respectively. The control group is divided into 6 groups. Except that the weight ratios of the three components of leaf extract, Sophora japonica extract, and white willow bark extract are different, the other ingredients are the same as in Example 1. In addition, in each group of tests, Astragalus leaf extract, Sophora japonica extract, White willow bark extract The total content of the three willow bark extracts in skin care products is the same, but the proportions of the three are different. In the control group 1-6, the three ingredients of astragalus leaf extract, pagoda japonica extract, and white willow bark extract Parts by weight are shown in Table 4:
[0056] The parts by weight of the three components of Astragalus leaf extract, Sophora japonica extract, and white willow bark extract in the skin care products o...
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