Betaine
Betaine — a naturally derived amino acid compound, often sourced from sugar beets, that acts as a gentle humectant and skin-soothing agent. It helps attract and retain moisture while improving the feel of formulas and reducing the potential for irritation from other ingredients.
Key points
- It functions as a humectant, binding water to help keep skin hydrated and smooth.
- As an osmolyte, it helps cells maintain their water balance, which can support comfort in dry or stressed skin.
- It is frequently used to soften the feel of cleansers and reduce the harshness of surfactant-based products.
- It is well tolerated, plant-derived, and commonly found in hydrating serums, cleansers, and moisturizers.
Frequently asked
What does betaine do in a cleanser?
In cleansers, betaine adds mildness and a softer skin feel, helping to counteract the potential tightness or dryness caused by stronger surfactants.
Is betaine the same as betaine salicylate?
No; plain betaine is a humectant and soothing agent, while betaine salicylate is a separate exfoliating ingredient that releases salicylic acid activity.
Related topics
This is a foundational entry in the SYNC Skin Encyclopedia and is expanded over time. Educational information only — not medical advice.
