The present invention is by external, experiment in vivo, inquire into Princepia utilis oil moisturizing mechanism, and determine that the Princepia utilis oil concentration of adding in skin care item is 1%, make skin-protection product quality gentle, safety is good, without toxicity, without anaphylaxis, acid ceramidase can be improved, the expression of hyaluronidase-3, thus increase keratinocyte secretory nerve amide and hyaluronic content, impaired skin barrier can be repaired, find through clinical research, there is recovery skin barrier, anti-inflammatory, effect of resisting age of skin, can auxiliary treatment steroid-dependent dermatitis, sensitive dermatoses, atopic dermatitis, acnes etc. have good curative effect and safety to the impaired relevant dermatosis of skin barrier.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail.
Fig. 1 is the process flow diagram that the present invention contains the preparation method of the skin care item of 
Princepia utilis oil.
Princepia utilis oil.
Fig. 2 is Herba Portulacae extract extraction and isolation flow chart.
Detailed description of the invention
The formula of embodiment 1-4 is following table (unit is weight portion)
Prepare the method for the above-mentioned skin care item containing Princepia utilis oil: A group component added in kettle, and be heated to 75 ~ 80 DEG C; B group component is added in oil cauldron, and is heated to 75 ~ 80 DEG C; A group solution is mixed in emulsifying pot with B group solution, and emulsifying 10min; Above-mentioned emulsion is cooled to 40 DEG C, adds component C, stir