softness factor的意思|示意

Placenta Extract contains a growth factor and resisting age factor, which stimulates the skin and prevent pigmentation to retain softness and whiteness.

羊胎盘素，富含细胞成长因子及抗老化因子，具活化细胞及防止黑色素沉淀，保持皮肤柔细及美白效果。

Softness is a basic factor of leather quantity. However, assessment of leather softness is subjective and it can be made only by eyes and hands on the world.

柔软度是表征皮革质量的主要指标之一，目前国内外均只能靠眼观手摸的方法进行感观评定。