# interior lab LOG: 髪を通して世界探索をする、とある美容師の研究日誌 — Field Notes from a Hairdresser's Lab

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## 固定ページ
- [Field Guide — このサイトの歩き方](https://masashitt.com/field-guide/): masashitt\.com の歩き方。シリーズ物の連載・単発のエッセイ・英語読者向け版を、カテゴリ別に整理した入口まとめです。
- [Contact Form / コンタクト・問い合わせ](https://masashitt.com/contact/)
- [ABOUT](https://masashitt.com/about/)
- [美容師3\.0 — Hairdresser 3\.0](https://masashitt.com/esprit30/)

## 投稿
- [S\-7 Development Notes \#4 \| The Salon Intuition Science Couldn't Explain](https://masashitt.com/2026/06/10/the-sodium-lactate-moment/): So good while washing — and then, once dry, just "fine\." The ingredient that finally changed that was the one the book called pointless\.
- [S\-7 Development Notes \#4｜科学が説明できなかった、現場の勘](https://masashitt.com/2026/06/10/the-intuition-science-couldnt-explain/): 洗っている間はあんなに良いのに、乾かすと「普通」になる。——その不満を初めて前進させたのは、本が「意味がない」と言っていた成分だった。
- [S\-7 Development Notes \#3｜同じ「泡」なのに、こんなに違うのか](https://masashitt.com/2026/06/08/learning-foam-by-hand/): 泡なんて、どれも同じだと思っていた。——自分の手で配合して、その思い込みはあっさり崩れた。
- [S\-7 Development Notes \#3 \| Same Foam, So Different](https://masashitt.com/2026/06/08/same-foam-so-different/): I used to think foam was foam\. The moment I started blending by hand, that assumption fell apart\.
- [S\-7 Development Notes \#2｜本を読む程に、疑問が増え続けた開発初期](https://masashitt.com/2026/06/08/the-first-batch-and-the-questions/)

## カテゴリー
- [ビヨウシ](https://masashitt.com/category/hair-dresser/)
- [ESSAY](https://masashitt.com/category/essay/)
- [ART/CREATION](https://masashitt.com/category/creation/)
- [LIFE](https://masashitt.com/category/essay/life/)
- [PHOTOGRAPHY](https://masashitt.com/category/creation/photography/)

## タグ
- [美容師技術の事](https://masashitt.com/tag/beauty-technique/)
- [ライフスタイル](https://masashitt.com/tag/life-style/)
- [FIREHEADオープンまでの記録](https://masashitt.com/tag/open-firehead/)
- [美容室経営の事](https://masashitt.com/tag/management-salon/)
- [FIREHEADの事](https://masashitt.com/tag/firehead/)

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