Understanding 効き目
The word 効き目 (ききめ) refers to the effect or efficacy of something, often medicine, cosmetics, or treatments. It emphasizes how well or quickly something works.
Usage in Context
You will frequently see 効き目 used when talking about the effectiveness of drugs or remedies, such as how fast a painkiller relieves pain or how long a medicine’s effect lasts. It can also apply to products like cosmetics or even methods.
Common Collocations
- 効き目がある: to have an effect; used to confirm efficacy.
- 効き目が切れる: the effect wears off; used to indicate when a medicine stops working.
- 効き目が早い: the effect is quick; used to describe fast-acting treatments.
Register and Nuance
This word is neutral and commonly used in both formal and informal contexts. It is often found in medical or consumer product discussions.
Learner Tip
Don’t confuse 効き目 with 効く (きく), which is the verb “to work” or “to be effective.” 効き目 is a noun focusing on the effect itself, while 効く describes the action of working or having an effect.