Abstract: Taking purslane as the research object,the study on its functions such as bacteriostatic,whitening,anti-aging,anti-inflammation and anti-allergy,and evaluation of its safety were carried out through a variety of methods.Results show that when the mass concentration of purslane extract is 125 g/L,it can inhibit five kinds of common bacteria.When the mass concentration is 2.0 g/L,the inhibition rate of tyrosinase is 82.49%,the scavenging rate of DPPH radical is 100%,and the scavenging rate of hydroxyl radical is 92.56%,all higher than the same mass concentration of vitamin C.When the mass concentration is 150 g/L,the mice auricle swelling inhibition rate is 55.74%.When the mass concentration is 1.5 g/L,the inhibition rate of hyaluronidase in vitro is 72.37%.When the mass concentration is 200 g/L,the RBC hemolytic ratio is 45.78%,and the half hemolytic dose is 230 g/L.Results of acute eye irritation test of rabbits and human safety rating are safe and non-irritating,when the mass concentration is not exceeded 150 g/L.Purslane has good bacteriostatic,whitening,anti-aging,anti-inflammatory,and anti-allergic functions,is a safe and non-irritating cosmetics raw materials.

Key words: raw material of cosmetics, purslane, functions, safety