How to say "lipstick" in Japanese

• 口紅くちべにJLPT N2approx.Common
  no-adjectiveThe word for lipstick as a cosmetic — the product itself, as sold and applied. Use this when talking about buying, wearing, or choosing a lipstick.
  ブライアンはケイトのために口紅くちべにを買かった。↗

  Brian bought a lipstick for Kate.
• ルージュCommon
  nounA loanword for rouge, especially lip rouge; it also covers lipstick. It is at home in cosmetics and beauty contexts as another name for essentially the same product.
• 紅くれないCommon
  nounEssentially the word for rouge — the red pigment — and for the deep crimson color; it can stand for lipstick, but for the cosmetic product itself 口紅 is the word you want.

For lipstick as a cosmetic product use 口紅; 「ルージュ」 is the loanword for rouge, especially lip rouge; 紅 is the native word for rouge and the color crimson, with lipstick only a secondary sense.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 口紅くちべにlipstick
• ルージュrouge (esp. lip rouge)
• リップスティックlipstick
• 紅くれないrouge