Preparation and Efficacy Evaluation of A New-Type Lip Cream
A high content of 35wt%PEG-5 pentaerythritol ether and PPG-5 pentaerythritol ether("new-type lanolin")was used in combination with the co-emulsifier glyceryl stearate as an emulsifier and emollient in lip products.The prepared lip cream product has no acute oral toxicity and no sensitization.After 28 days of application,the moisture content of lip cuticle was significantly increased by 56.11%(P<0.05),the water loss rate of trans-epidermis was decreased by 17.27%,the gloss of lip was increased by 27.89%,the volume,area and depth of the bottom lip were improved by 35.01%,28.91%and 12.13%,respectively,and the color of lip skin was improved by 2.77%.To conclude,the lip cream was mild with non-irritating for all the participants,and 90.91%of the participants agreed with the product as a whole.
New-type lanolinacute oral toxicitylip line volumeglossiness
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