老ろう化か防ぼう止し剤ざい

noun, noun which may take the genitive case particle 'no'

anti-aging agent; antioxidant

Refers to substances that prevent or slow aging, often used in cosmetics, supplements, or food science. The gloss 'antioxidant' reflects a common mechanism, but the term is broader.

• この化け粧しょう品ひんには老ろう化か防ぼう止し剤ざいが含ふくまれている。

  This cosmetic contains an anti-aging agent.

• 老ろう化か防ぼう止し剤ざいとしてビタミンCがよく使つかわれる。

  Vitamin C is often used as an anti-aging agent.