天てん然ねん保ほ湿しつ因いん子し

noun

natural moisturizing factor; NMF

Technical term in dermatology and cosmetics for substances naturally present in the skin that help retain moisture.

• 天てん然ねん保ほ湿しつ因いん子しは、角かく質しつ層そうの水すい分ぶん保ほ持