Study on Heat-Aging Skin Models and Their Applications
By recruiting a group of subjects,the infrared heater was used to irradiate the front of the subject's arm,and the minimum heating dose of the skin was explored and the model of skin thermal aging of the arm was established.The results showed that the minimum heating dose of the skin on the front side of the arm was 80 J,and the skin temperature reached was(40.82±0.78)℃.According to the arm skin thermal aging model,compared with the product side,SEr value of rough skin in the test site on the blank side decreased,and the water content of stratum corneum and skin elasticity R2 value decreased.The elastic fibers on the surface of the stratum corneum and the dermis were observed by two-photon microscopy,and it was found that the flatness of the stratum corneum in the blank group deteriorated,and the elastic fibers were significantly less and dissolved.The flatness of the stratum corneum and the elastic fiber of the dermis on the side of the product were improved to varying degrees.It was showed that the product had a certain anti-heat aging effect,and the model had certain reference significance.