A study of the soothing efficacy of a baby moisturizer
The soothing efficacy of baby moisturizer was evaluated by analyzing the changes of inflammatory cytokines in vitro and human efficacy tests.RAW264.7 cells were induced by Lipopolysaccharide(LPS)to establish a cell inflammation model in vitro,and the inflammatory cytokines of Interleukin-6(IL-6)and NO were detected to observe the inhibitory effect of baby moisturizer in vitro.The non-toxic concentration of baby moisturizer was detected by MTT assay,the level of IL-6 in RAW264.7 cells supernatant was detected by ELISA kits,and the level of NO in RAW 264.7 cells supernatant was detected by Griess reagent.Dexamethasone was used as the positive control.At the same time,the hydration of the stratum corneum,transepidermal water loss(TEWL),erythema index,the redness of skin(a*value)and the proportion of redness area in facial cheekbones were detected after using the baby moisturizer for 28 days.The experiment results showed that the baby moisturizer at a non-toxic concentration of 0.3 mg/mL,could significantly reduce IL-6 and NO in RAW264.7 cells supernatant,meanwhile it could significantly enhance the hydration of the stratum corneum,and reduce the TEWL,erythema index,the redness of skin(a* value)and the proportion of redness area.In conclusion,the baby moisturizer(0.3 mg/mL)can restrain inflammatory cytokines in vitro and can also significantly improve human facial skin irritation,which can be considered to have soothing efficacy.
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维普
