Translation guide
The cosmetic product applied to lips, typically in stick form.
口紅
lipstick
Referring to the cosmetic item itself.
The most common and standard word for lipstick.
新しい口紅を買った。
I bought a new lipstick.
その口紅の色、素敵だね。
That lipstick color is lovely.
Loanword from English, often used in fashion or cosmetic contexts.
このリップスティックは落ちにくい。
This lipstick is long-lasting.
Shortened loanword, common in casual speech and product names.
リップを塗り直す。
I reapply lipstick.
The action of putting on lipstick.
Standard phrase for applying lipstick.
彼女は鏡を見ながら口紅を塗った。
She applied lipstick while looking in the mirror.
Casual version using the shortened loanword.
ちょっとリップを塗ってくる。
I'll go put on some lipstick.
Referring to the specific color or shade of lipstick.
Literally 'color of lipstick', used to talk about shades.
この口紅の色は私に似合うかな？
I wonder if this lipstick color suits me?
口紅 (kuchibeni) specifically means lipstick (colored cosmetic). For lip balm (colorless moisturizer), use リップクリーム (rippu kuriimu) or リップバーム (rippu baamu).