The invention provides an anti-
allergy soothing composition, a cleansing agent comprising the same and a preparation method. The anti-
allergy soothing composition takes a 
purslane extract and a cortexmagnoliae 
officinalis bark extract as main raw materials, and adding PEG / PPG-25 / 30 
copolymer and 
olive oil PEG-8 esters, wherein the 
purslane extract has anti-irritating, anti-
allergy and soothing effects; the cortex magnoliae 
officinalis bark extract has anti-bacterial, anti-
inflammation, anti-oxidant and anti-allergy soothing active effects; and by cooperation of the 
purslane extract and the cortex magnoliae 
officinalis extract, the anti-allergy effect can be improved. The anti-allergy soothing cleansing agent takes the anti-allergy soothing composition as a main material, and is added witha 
moisturizer, a softener, a 
cleanser and other auxiliary agents, the purslane extract and the cortex magnoliae officinalis 
bark extract are fused, in a using process, the 
cleanser can clean 
dirt inthe deep layer of 
skin, the micromolecular purslane extract and cortex magnoliae officinalis bark extract can rapidly enter the deep layer of the 
skin, and therefore, effects of moisturizing and relieving 
skin allergy are achieved.