Betaine
Humectant: helps attract and retain moisture in the skin and hair.
Conditioning agent: helps to soften and smooth skin and hair. Often used in hair care products to improve texture, manageability and impart volume.
Anti-irritant: its soothing and anti-irritant properties makes it suitable for use in products for people with sensitive or easily irritated skin. It comforts the skin and reduces the possibility of redness.
Osmoprotective: helps protect skin cells from environmental stressors and maintain their natural balance.
Betaine is considered safe for use in cosmetics and personal care products.