摘要
Developed products according to the formation process and inducement of blackheads,and verified the efficacy of products.The results showed that:after using the product for 15 minutes,the blackhead decrease rate is 13.94%compare with the base value;after using the product for 7 days,the blackhead decrease rate is 25.43%compare with the base value;after using the product for 28 days,the blackhead decrease rate is 66.09%compare with the base value;after using the product for 15 minutes,the pores increase significantly compare with the control area;after 7 days of product use,there is no significant change in pore size compare with the base value;after 28 days of product use,there is no significant change in pore size compare with the base value;after 7 days of use,the oil decrease rate is 22.33%compare with the base value;after 28 days of use,the oil decrease rate is 29.05%compare with the base value;after 15 minutes of single use,93.94%of subjects are satisfy with blackhead removal;after continuous use of the test product for 28 days,96.67%of subjects are satisfy with blackhead removal,100%with oil control,and 96.67%with overall satisfaction of the product.
