Grandpa must be wanting facial cream right now.
I'll trade you some for a unisex wig...
じいさんがほしいのはきっと美顔薬だよ。
男女兼用のかつらとなら交換してやってもいい…
101Leafy researched the game with the Hilltop Works fan translation patch, English translation by Cargodin

Unisex Wig is item 30 of the game's item table, in the Items group. The script names it on discs 2 and 3.
Lines of the script that name it, each with a link to its place in the script.
Grandpa must be wanting facial cream right now.
I'll trade you some for a unisex wig...
じいさんがほしいのはきっと美顔薬だよ。
男女兼用のかつらとなら交換してやってもいい…
Here, I styled a wig for you! Lovely, huh. Thing's unisex, so it works on any occassion! People the world over still flock to our wigs, and for damn good reason. I'm confident you can see why!
ほら、繕えたよ。いいかつらだねえ。男女兼用のかつらだよ、あんたにもぴったりだね。こういうの好きな人も世の中にはたくさんいるからさ、喜んでもらえると思うよ。
Unisex Wig acquired.
「男女兼用のかつら」を入手しました。
Item table: Men's Wig Unisex Wig Tape Recorder
English translations by Cargodin for Hilltop Works Fan Translation Patch: https://www.patreon.com/hilltopworks/posts/kowloons-gate-160555525?collection=18503