A sugar beet derived amino acid derivative with nice skin protection and moisturization properties. Betain's special thing is being an osmolyte, a molecule that helps to control cell-water balance. It is also a natural osmoprotectant, meaning that it attracts water away from the protein surface and thus protects them from denaturation and increases their thermodynamic stability.

It also gives sensorial benefits to the formula and when used in cleansers, it helps to make them milder and gentler.

https://incidecoder.com/ingredients/betaine

目前好像含有甜菜堿成分的產品對我皮膚的保濕效果很好。