The best makeup brush manufacturing process! Very good quality factory in Japan 

え？触らないとどうやって作るというんですか？？触らないでつくれませんよね この会社に限らず他の会社が作ってるブラシの動画も見ましたがみなさん手で作っておられます。世の中のブラシは人の手で作ってるんじゃないですか？　無菌なんて言ってたらどのブラシも使えませんね

Pig? 😨

Probably goat hair. As far as I know, that's what most high-end Japanese makeup brushes are made out of, unless it's from a manufacturer's synthetic brush line. However, there's lots of small companies that only use natural hair for their brushes, and it's usually goat hair.