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Betaine

What Betaine is & what it does

A naturally derived humectant and osmolyte that hydrates while protecting cells from water stress, giving a soft, smooth feel. It is gentle and often added to reduce the harshness of surfactants.

What is Betaine and what does it do in sunscreen?

Betaine is a naturally derived humectant and osmolyte, often sourced from sugar beets. It draws and holds water in the skin while protecting cells from water stress, leaving a soft, smooth feel. It is also added to soften the harshness of surfactants, making a formula gentler.

Is Betaine safe?

Yes. Betaine is a small, naturally occurring molecule found in many plants and in the body, and it is a well-tolerated cosmetic ingredient. It is gentle enough for sensitive skin and is often included specifically to make a formula milder.

Does Betaine clog pores?

No. Betaine is a water-loving humectant rather than a heavy oil or wax, and it is not flagged as comedogenic. It is suitable for oily and acne-prone skin and is an unlikely cause of breakouts.

Is Betaine a humectant?

Yes. Betaine works as a humectant, meaning it attracts water into the upper layers of skin to keep them hydrated. As an osmolyte it also helps cells hold their water balance, which is why it feels soothing and softening on the skin.

Is Betaine natural?

It is naturally derived. Cosmetic betaine is commonly extracted from sugar beets, and the same molecule occurs widely in plants and in the body. It is a gentle, plant-sourced humectant.

Sunscreens with Betaine

We rate 265 sunscreens that contain it, showing the top 10 by overall score:

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