To provide a composition for suppressing aged odor which has a great effect in suppressing generation of aged odor, a skin external preparation containing the composition for preventing aging odor, a cloth material impregnated with this composition for preventing aged odor , And a bath additive comprising a composition for suppressing aged odor.SOLUTION: The composition for inhibiting aged odor of the present invention contains gentisic acid or a gentisic acid glycoside, preferably the gentisic acid glycoside is a silkworm cocoon layer extract, and as a silkworm, a yellow strong fluorescent line , Which is not a cocoon layer, is used to suppress the volatile components generated when palmitoleic acid is oxidized with squalene oxide.(FIG.【課題】加齢臭の発生抑制に大きな効果がある加齢臭抑制用組成物、この加齢臭抑制用組成物を含む皮膚外用剤、この加齢臭抑制用組成物を含浸させた布材、及び加齢臭抑制用組成物を含む入浴剤を提供する。【解決手段】本発明の加齢臭抑制用組成物は、ゲンチジン酸又はゲンチジン酸配糖体を含み、好ましくはゲンチジン酸配糖体がカイコ繭層抽出物であり、カイコとして、黄色強蛍光系統の繭層ではない実用品種を用い、パルミトオレイン酸をスクアレン酸化物で酸化させた時に発生する揮発成分を抑制する特徴とする。【選択図】 図7