What is betaine and how does it benefit skin?

Betaine is a natural osmolyte that helps cells maintain water balance. In skincare, it functions as a humectant, drawing moisture into the skin, and also offers soothing and protective benefits.

Is betaine suitable for sensitive skin?

Yes, betaine is generally well-tolerated and is often included in formulations for sensitive skin due to its soothing properties and ability to reduce irritation caused by other ingredients.

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Betaine

Also known as: Trimethylglycine, Oxyneurine

Betaine is a naturally occurring amino acid derivative found in plants like sugar beets. In skincare, it acts as a humectant, attracting and retaining moisture in the skin. It also has soothing properties and can help protect skin from irritation.

HumectantVegan

BenefitGood 2.5 / 4

Hydration i2.5 / 4

Whether the ingredient helps increase the skin’s water content — humectants that attract water, ingredients that reduce water loss, or ones that make skin feel less dry.

Soothing i1.8 / 4

Whether it can calm the skin — linked to less redness, irritation, discomfort, or visible reactivity.

Texture i1 / 4

Whether it can improve smoothness and surface texture — roughness, flaking, clogged pores, or unevenness. Exfoliating acids, retinoids, and smoothing moisturizers may score here.

Uv protection i0.5 / 4

Whether it provides direct protection against UV radiation.

RiskVery low 0 / 4

Rated by SpottyLabs' ingredient methodology, independent of brands.

What it helps with

hydrates skin
soothes irritation
protects skin barrier

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Products with Betaine

SKIN1004

Madagascar Centella Tone Brightening Capsule Ampoule

4.8/ 520/5/1

Anua

Rice 70 Glow Milky Toner

4.7/ 528/9/1

Biodance

Bio Collagen Real Deep Mask

4.7/ 521/12/1

SKIN1004

Madagascar Centella Probio-Cica Intensive Ampoule

4.7/ 526/15/2

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Frequently asked questions

What is betaine and how does it benefit skin?: Betaine is a natural osmolyte that helps cells maintain water balance. In skincare, it functions as a humectant, drawing moisture into the skin, and also offers soothing and protective benefits.
Is betaine suitable for sensitive skin?: Yes, betaine is generally well-tolerated and is often included in formulations for sensitive skin due to its soothing properties and ability to reduce irritation caused by other ingredients.