请问这个界面活性剂属于哪一个类别，是阴离子型、阳离子型、两性型、非离子型哪一种?

两性离子界面活性剂
https://www.fda.gov.tw/tc/siteListContent.aspx?sid=9693&id=24338

Cocamidopropyl Betaine, Lauramidopropyl Betaine and related amidopropyl betaines are used mainly as surfactants in cosmetic and personal care products. Surfactants help to clean skin and hair by helping water to mix with oil and dirt so that they can be rinsed away.

MW: 344.5g/mol

Mild surfactant